10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2015.

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to __________

Commission File Number:  0-21184

MICROCHIP TECHNOLOGY INCORPORATED

(Exact Name of Registrant as Specified in Its Charter)

Delaware	86-0629024
(State or Other Jurisdiction of Incorporation or Organization)	(IRS Employer Identification No.)

2355 W. Chandler Blvd., Chandler, AZ  85224-6199

(480) 792-7200

(Address, Including Zip Code, and Telephone Number,

Including Area Code, of Registrant's

Principal Executive Offices)

Indicate by checkmark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to the filing requirements for the past 90 days. Yes  x No o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes  x No o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act:

Large accelerated filer	x	Accelerated filer	o
Non-accelerated filer	o	Smaller reporting company	o

(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  (Check One)

Yes    o No   x

Shares Outstanding of Registrant's Common Stock

Class	Outstanding at October 28, 2015
Common Stock, $0.001 par value	203,122,333 shares

MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES

INDEX

		Page
PART I.  FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)
	Condensed Consolidated Balance Sheets – September 30, 2015 and March 31, 2015	3
	Condensed Consolidated Statements of Income – Three and Six Months Ended September 30, 2015 and 2014	4
	Condensed Consolidated Statements of Comprehensive Income - Three and Six Months Ended September 30, 2015 and 2014	5
	Condensed Consolidated Statements of Cash Flows – Six Months Ended September 30, 2015 and 2014	6
	Notes to Condensed Consolidated Financial Statements	7
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	27
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	43
Item 4.	Controls and Procedures	43
PART II.  OTHER INFORMATION
Item 1.	Legal Proceedings	44
Item 1A.	Risk Factors	44
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	56
Item 6.	Exhibits	57
SIGNATURES
CERTIFICATIONS
EXHIBITS

MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share amounts)

(unaudited)

Item1. Financial Statements

ASSETS	September 30, 2015			March 31, 2015
Cash and cash equivalents	$	539,078		$	607,815
Short-term investments	1,462,466			1,351,054
Accounts receivable, net	281,063			273,937
Inventories	363,760			279,456
Prepaid expenses	38,553			34,717
Deferred tax assets	69,343			71,045
Assets held for sale	—			13,989
Other current assets	24,624			32,604
Total current assets	2,778,887			2,664,617
Property, plant and equipment, net	631,600			581,572
Long-term investments	584,910			383,326
Goodwill	1,008,720			571,271
Intangible assets, net	702,383			504,417
Other assets	79,809			75,510
Total assets	$	5,786,309		$	4,780,713
LIABILITIES AND EQUITY
Accounts payable	$	72,362		$	86,866
Accrued liabilities	119,452			100,978
Deferred income on shipments to distributors	179,962			166,128
Total current liabilities	371,776			353,972
Long-term line of credit	1,296,452			461,952
Senior convertible debentures	1,197,792			1,174,036
Junior convertible debentures	193,630			190,870
Long-term income tax payable	107,459			114,336
Long-term deferred tax liability	448,777			381,192
Other long-term liabilities	41,042			43,329
Stockholders' equity:
Preferred stock, $0.001 par value; authorized 5,000,000 shares; no shares issued or outstanding	—			—
Common stock, $0.001 par value; authorized 450,000,000 shares; 227,416,789 shares issued and 203,052,463 shares outstanding at September 30, 2015; 218,789,994 shares issued and 202,080,306 shares outstanding at March 31, 2015	203			202
Additional paid-in capital	1,382,818			999,515
Common stock held in treasury: 24,364,326 shares at September 30, 2015; 16,709,688 shares at March 31, 2015	(850,635		)	(515,679		)
Accumulated other comprehensive (loss) income	(3,095		)	11,076
Retained earnings	1,600,090			1,549,540
Microchip Technology stockholders' equity	2,129,381			2,044,654
Noncontrolling interests	—			16,372
Total equity	2,129,381			2,061,026
Total liabilities and equity	$	5,786,309		$	4,780,713

See accompanying notes to condensed consolidated financial statements

3

MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share amounts)

(unaudited)

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Net sales	$	541,391		$	546,243		$	1,075,343		$	1,075,119
Cost of sales (1)	240,441			238,789			465,376			461,146
Gross profit	300,950			307,454			609,967			613,973
Operating expenses:
Research and development  (1)	95,256			88,814			179,936			173,184
Selling, general and administrative  (1)	80,258			71,114			147,107			140,369
Amortization of acquired intangible assets	43,840			45,433			78,452			82,077
Special charges, net	6,648			775			8,205			1,079
	226,002			206,136			413,700			396,709
Operating income	74,948			101,318			196,267			217,264
Losses on equity method investments	(56		)	(35		)	(233		)	(67		)
Other income (expense):
Interest income	6,405			4,531			11,933			9,273
Interest expense	(25,644		)	(14,019		)	(49,696		)	(27,697		)
Other (expense) income, net	(1,696		)	(1,091		)	15,251			(1,078		)
Income before income taxes	53,957			90,704			173,522			197,695
Income tax (benefit) provision	(10,942		)	(1,334		)	(21,837		)	15,748
Net income	64,899			92,038			195,359			181,947
Less: Net loss attributable to noncontrolling interests	—			1,603			207			1,603
Net income attributable to Microchip Technology	$	64,899		$	93,641		$	195,566		$	183,550
Basic net income per common share attributable to Microchip Technology stockholders	$	0.32		$	0.47		$	0.96		$	0.92
Diluted net income per common share attributable to Microchip Technology stockholders	$	0.30		$	0.42		$	0.90		$	0.82
Dividends declared per common share	$	0.3580		$	0.3560		$	0.7155		$	0.7115
Basic common shares outstanding	204,275			200,629			203,254			200,408
Diluted common shares outstanding	217,099			225,284			216,933			224,906
(1) Includes share-based compensation expense as follows:
Cost of sales	$	2,398		$	2,640		$	4,055		$	4,695
Research and development	8,670			7,261			15,768			13,570
Selling, general and administrative	11,958			5,372			17,315			10,329

See accompanying notes to condensed consolidated financial statements

4

MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

(unaudited)

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Net income	$	64,899		$	92,038		$	195,359		$	181,947
Less: Net loss attributable to noncontrolling interests	—			1,603			207			1,603
Net income attributable to Microchip Technology	64,899			93,641			195,566			183,550
Components of other comprehensive income (loss):
Available-for-sale securities:
Unrealized holding gains (losses), net of tax effect of $0, $0, $0 and $12, respectively	2,082			(3,465		)	70			(405		)
Reclassification of realized transactions, net of tax effect of $0, $0, $0 and $12, respectively	(6		)	(62		)	(13,965		)	(84		)
Change in net foreign currency translation adjustment	—			(6,234		)	—			(6,234		)
Other comprehensive income (loss), net of taxes	2,076			(9,761		)	(13,895		)	(6,723		)
Less: Other comprehensive loss attributable to noncontrolling interests	—			1,015			—			1,015
Other comprehensive income (loss) attributable to Microchip Technology	2,076			(8,746		)	(13,895		)	(5,708		)
Comprehensive income	66,975			82,277			181,464			175,224
Less: Comprehensive loss attributable to noncontrolling interests	—			2,618			207			2,618
Comprehensive income attributable to Microchip Technology	$	66,975		$	84,895		$	181,671		$	177,842

See accompanying notes to condensed consolidated financial statements

5

MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Six Months Ended
	September 30,
	2015			2014
Cash flows from operating activities:
Net income	$	195,359		$	181,947
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	131,484			131,809
Deferred income taxes	(35,999		)	(4,497		)
Share-based compensation expense related to equity incentive plans	37,138			28,594
Excess tax benefit from share-based compensation	(407		)	(982		)
Amortization of debt discount on convertible debentures	23,746			4,810
Amortization of debt issuance costs	1,920			1,088
Losses on equity method investments	233			67
Gain on sale of assets	(860		)	—
Impairment of intangible assets	530			556
Realized gain on available-for-sale investment	(13,959		)	—
Realized gain on equity method investment	(2,225		)	—
Amortization of premium on available-for-sale investments	4,732			5,066
Special charges	511			—
Changes in operating assets and liabilities:
Decrease (increase) in accounts receivable	5,170			(29,429		)
(Increase) decrease in inventories	(4,597		)	32,052
Increase in deferred income on shipments to distributors	13,492			11,787
Decrease in accounts payable and accrued liabilities	(31,443		)	(15,817		)
Change in other assets and liabilities	6,589			10,783
Net cash provided by operating activities	331,414			357,834
Cash flows from investing activities:
Purchases of available-for-sale investments	(1,112,089		)	(350,598		)
Sales and maturities of available-for-sale investments	795,771			547,037
Sale of equity method investment	2,667			—
Acquisition of Micrel, net of cash acquired	(343,928		)	—
Acquisition of ISSC, net of cash acquired	—			(252,469		)
Purchase of additional controlling interest in ISSC	(18,051		)	(1,765		)
Acquisition of Supertex, net of cash acquired	—			(375,365		)
Investments in other assets	(2,981		)	(3,659		)
Proceeds from sale of assets	14,296			—
Capital expenditures	(63,554		)	(83,372		)
Net cash used in investing activities	(727,869		)	(520,191		)
Cash flows from financing activities:
Repayments of revolving loan under credit facility	(190,000		)	(308,500		)
Proceeds from borrowings on revolving loan under credit facility	1,024,500			632,875
Repayments of long-term borrowings	—			(8,750		)
Deferred financing costs	(406		)	—
Payment of cash dividends	(145,016		)	(142,644		)
Repurchase of common stock	(363,829		)	—
Proceeds from sale of common stock	13,520			14,035
Tax payments related to shares withheld for vested restricted stock units	(11,124		)	(10,306		)
Capital lease payments	(334		)	(298		)
Excess tax benefit from share-based compensation	407			982
Net cash provided by financing activities	327,718			177,394
Effect of foreign exchange rate changes on cash and cash equivalents	—			(201		)
Net (decrease) increase in cash and cash equivalents	(68,737		)	14,836
Cash and cash equivalents at beginning of period	607,815			466,603
Cash and cash equivalents at end of period	$	539,078		$	481,439

See accompanying notes to condensed consolidated financial statements

6

MICROCHIP TECHNOLOGY INCORPORATED AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

(1) Basis of Presentation

The accompanying unaudited condensed consolidated financial statements include the accounts of Microchip Technology Incorporated and its majority-owned subsidiaries (the Company).  The Company owned 100% of the outstanding stock in all of its subsidiaries as of September 30, 2015. All intercompany balances and transactions have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (US GAAP), pursuant to the rules and regulations of the Securities and Exchange Commission (the SEC).  The information furnished herein reflects all adjustments which are, in the opinion of management, of a normal recurring nature and necessary for a fair statement of the results for the interim periods reported. Certain information and footnote disclosures normally included in audited consolidated financial statements have been condensed or omitted pursuant to such SEC rules and regulations.  It is suggested that these condensed consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended March 31, 2015.  The results of operations for the six months ended September 30, 2015 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2016 or for any other period.

(2) Business Acquisitions

Acquisition of Micrel

On August 3, 2015, the Company acquired Micrel, Incorporated (Micrel), a publicly traded company based in San Jose, California. Micrel shareholders were able to elect to receive the $14.00 per share purchase price in either cash or shares of Microchip common stock. Based on the results of the shareholder elections, the Company paid an aggregate of approximately $430.0 million in cash and issued an aggregate of 8,626,795 shares of its common stock to Micrel shareholders. The total consideration transferred in the acquisition, including approximately $4.1 million of non cash consideration for the exchange of certain share-based payment awards of Micrel for stock awards of the Company, and approximately $13.1 million of cash consideration for the payout of vested employee stock awards, was approximately $816.2 million. The Company financed the cash portion of the purchase price using borrowings under its existing credit agreement. As a result of the acquisition, Micrel became a wholly owned subsidiary of the Company. Micrel's business is to design, develop, manufacture and market a range of high-performance analog, power and mixed-signal integrated circuits. Micrel's products address a wide range of end markets including industrial and automotive, wireline communications, enterprise and cloud infrastructure and mobility. Micrel also manufactures custom analog and mixed-signal circuits and provides wafer foundry services for customers which produce electronic systems utilizing semiconductor manufacturing processes as well as micro-electrical mechanical system technologies. The Company's primary reason for this acquisition was to expand the Company's range of solutions, products and capabilities in these areas by extending its served available market.

The acquisition was accounted for under the acquisition method of accounting, with the Company identified as the acquirer, and the operating results of Micrel have been included in the Company's condensed consolidated financial statements as of the closing date of the acquisition. Under the acquisition method of accounting, the aggregate amount of consideration paid by the Company was allocated to Micrel's net tangible assets and intangible assets based on their estimated fair values as of August 3, 2015.  The excess of the purchase price over the value of the net tangible assets and intangible assets was recorded to goodwill. The factors contributing to the recognition of goodwill were based upon the Company's conclusion that there are strategic and synergistic benefits that are expected to be realized from the acquisition. The goodwill has been allocated to the Company's semiconductor products reporting segment.  None of the goodwill related to the Micrel acquisition is deductible for tax purposes.  The Company retained an independent third-party appraiser to assist management in its valuation; however, the purchase price allocation has not been finalized. This could result in adjustments to the fair values of the assets acquired and liabilities assumed, the useful lives of intangible assets, the residual amount allocated to goodwill and deferred income taxes recognized. The preliminary allocation of the purchase price is based on the best estimates of management and is subject to revision based on the final valuations and estimates of useful lives.

The table below represents the preliminary allocation of the purchase price to the net assets acquired based on their estimated fair values as of August 3, 2015, as well as the associated estimated useful lives of the acquired intangible assets at that date (amounts in thousands):

7

Assets acquired	August 3, 2015
Cash and cash equivalents	$	99,196
Accounts receivable, net	12,296
Inventories	78,967
Prepaid expenses and other current assets	10,548
Property, plant and equipment, net	38,566
Goodwill	437,060
Purchased intangible assets	274,800
Other assets	4,268
Total assets acquired	955,701
Liabilities assumed
Accounts payable	(11,068		)
Other current liabilities	(30,241		)
Deferred tax liabilities	(88,796		)
Long-term income tax payable	(9,239		)
Other long-term liabilities	(127		)
Total liabilities assumed	(139,471		)
Purchase price allocated	$	816,230

Purchased Intangible Assets	Useful Life	August 3, 2015
	(in years)	(in thousands)
Core/developed technology	10	$	176,800
In-process technology	10	22,100
Customer-related	5	70,400
Backlog	1	5,500
		$	274,800

Purchased intangible assets include core and developed technology, in-process research and development, customer-related intangibles and acquisition-date backlog. The estimated fair values of the core and developed technology and in-process research and development were determined based on the present value of the expected cash flows to be generated by the respective existing technology or future technology. The core and developed technology intangible assets are being amortized commensurate with the expected cash flows used in the initial determination of fair value. In-process technology is capitalized until such time the related projects are completed or abandoned at which time the capitalized amounts will begin to be amortized or written off.

Customer-related intangible assets consist of Micrel's contractual relationships and customer loyalty related to its distributor and end-customer relationships, and the fair values of the customer-related intangibles were determined based on Micrel's projected revenues. An analysis of expected attrition and revenue growth for existing customers was prepared from Micrel's historical customer information.  Customer relationships are being amortized in a manner consistent with the estimated cash flows associated with the existing customers and anticipated retention rates. Backlog relates to the value of orders not yet shipped by Micrel at the acquisition date, and the preliminary fair values were based on the estimated profit associated with those orders. Backlog related assets are being recognized commensurate with recognition of the revenue for the orders on which the backlog intangible assets were determined.  Amortization expense associated with acquired intangible assets is not deductible for tax purposes.  Thus, approximately $99.8 million was established as a net deferred tax liability for the future amortization of the intangible assets offset by $11.0 million of net deferred tax assets.

The amount of Micrel net sales and net loss included in the Company's condensed consolidated statements of income for the period August 3, 2015 to September 30, 2015 was $21.5 million and $28.5 million, respectively.

8

The following unaudited pro-forma consolidated results of operations for the three and six months ended September 30, 2015 and 2014 assume the Micrel acquisition occurred as of April 1, 2014. The pro-forma adjustments are mainly comprised of acquired inventory fair value costs and amortization of purchased intangible assets. The pro-forma results of operations are presented for informational purposes only and are not indicative of the results of operations that would have been achieved if the acquisition had taken place on April 1, 2014 or of results that may occur in the future (amounts in thousands except per share data):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net sales	$	574,432	$	613,722	$	1,163,066	$	1,184,937
Net income	83,868		70,440		202,037		125,387
Basic earnings per share	$	0.41	$	0.35	$	0.99	$	0.63
Diluted earnings per share	$	0.39	$	0.31	$	0.93	$	0.56

Acquisition of ISSC

On July 17, 2014, the Company acquired an 83.5% interest in Taiwan based ISSC, a leading provider of low power Bluetooth and advanced wireless solutions for the Internet of Things (IoT) market. The Company acquired the 83.5% ownership interest through a tender offer process. Since the completion of the tender offer, the Company continued to acquire additional shares of ISSC, and as of June 30, 2015, the Company had completed the acquisition of 100% of the outstanding shares of ISSC.

The acquisition was accounted for under the acquisition method of accounting. The table below represents the allocation of the purchase price, including adjustments to the purchase price allocation from the previously reported figures at March 31, 2015, to the net assets acquired based on their estimated fair values as of July 17, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized as of June 30, 2015 (amounts in thousands):

Assets acquired	Previously Reported March 31, 2015			Adjustments			June 30, 2015
Cash and cash equivalents	$	15,120		$	—		$	15,120
Short-term investments	27,063			—			27,063
Accounts receivable, net	8,792			—			8,792
Inventories	16,542			—			16,542
Prepaid expenses and other current assets	2,501			—			2,501
Property, plant and equipment, net	2,637			—			2,637
Goodwill	154,399			389			154,788
Purchased intangible assets	147,800			—			147,800
Other assets	1,370			—			1,370
Total assets acquired	376,224			389			376,613
Liabilities assumed
Accounts payable	(9,860		)	—			(9,860		)
Other current liabilities	(16,535		)	—			(16,535		)
Long-term income tax payable	(4,402		)	(389		)	(4,791		)
Deferred tax liability	(25,126		)	—			(25,126		)
Other long-term liabilities	(245		)	—			(245		)
Total liabilities assumed	(56,168		)	(389		)	(56,557		)
Net assets acquired including noncontrolling interest	320,056			—			320,056
Less: noncontrolling interest	(52,467		)	—			(52,467		)
Net assets acquired	$	267,589		$	—		$	267,589

9

Purchased Intangible Assets	Useful Life	July 17, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	27,200
Customer-related	3	51,100
Backlog	1	600
		$	147,800

Acquisition of Supertex

On April 1, 2014, the Company acquired Supertex Inc., a publicly traded company based in Sunnyvale, California. Supertex is a leader in high voltage analog and mixed signal technologies, with a strong position in the medical, lighting and industrial control markets.

The acquisition was accounted for under the acquisition method of accounting. The table below represents the allocation of the purchase price to the net assets acquired based on their estimated fair values as of April 1, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized on March 31, 2015 (amounts in thousands):

Assets acquired	March 31, 2015
Cash and cash equivalents	$	14,790
Short-term investments	140,984
Accounts receivable, net	7,047
Inventories	27,630
Prepaid expenses	1,493
Deferred tax assets	2,456
Other current assets	12,625
Property, plant and equipment, net	15,679
Goodwill	143,160
Purchased intangible assets	89,600
Other assets	325
Total assets acquired	455,789
Liabilities assumed
Accounts payable	(8,481		)
Accrued liabilities	(19,224		)
Long-term income tax payable	(3,796		)
Deferred tax liability	(32,511		)
Total liabilities assumed	(64,012		)
Net assets acquired	$	391,777

Purchased Intangible Assets	Useful Life	April 1, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	1,900
Customer-related	2	17,700
Backlog	1	1,100
		$	89,600

10

(3) Recently Issued Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09-Revenue from Contracts with Customers, which will supersede nearly all existing revenue recognition guidance under US GAAP.  The standard's core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The Company is evaluating its existing revenue recognition policies to determine whether any contracts in the scope of the guidance will be materially affected by the new requirements.  The effects may include identifying performance obligations in existing arrangements, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation.  On July 9, 2015, the FASB delayed the effective date of the new standard by one year to December 15, 2017, for annual and interim reporting periods beginning after that date. In accordance with the delay, the new standard will be effective for the Company beginning no later than April 1, 2018.  Early adoption is permitted, but not before the original effective date of December 15, 2016.  The standard allows for either "full retrospective" adoption, meaning the standard is applied to all of the periods presented, or "modified retrospective" adoption, meaning the standard is applied only to the most current period presented in the financial statements.  The Company is currently evaluating the transition method that will be elected.

In April 2015, the FASB issued ASU 2015-03-Simplifying the Presentation of Debt Issuance Costs. This standard amends existing guidance to require the presentation of debt issuance costs in the balance sheet as a deduction from the carrying amount of the related debt liability instead of a deferred charge. ASU 2015-03 is effective for interim and annual reporting periods beginning after December 15, 2015 and requires retrospective application. Early adoption is permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In April 2015, the FASB issued ASU 2015-05-Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This standard provides guidance about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the software license element of the arrangement should be accounted for consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted. This standard can be adopted either prospectively to all arrangements entered into or materially modified after the effective date or retrospectively. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In July 2015, the FASB issued ASU 2015-11-Simplifying the Measurement of Inventory. This standard requires that entities measure inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 is effective for interim and annual reporting periods beginning after December 15, 2016 and is applied prospectively. Early adoption is permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In September 2015, the FASB issued ASU 2015-16-Business Combinations (Topic 805), Simplifying the Accounting for Measurement-Period Adjustments. This standard amends existing guidance to require acquiring entities in a business combination to recognize measurement-period adjustments in the reporting period in which the adjustment amounts are determined. The standard also requires entities to present separately on the face of the income statement (or disclose in the notes to the financial statements) the amount of the adjustment reflected in the current period earnings, by line item, that would have been recognized in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is effective for interim and annual reporting periods beginning after December 15, 2015. Early adoption permitted. The standard is to be applied prospectively to measurement-period adjustments that occur after the effective date. The Company adopted this standard beginning in the second quarter of fiscal 2016 and the adoption of this standard did not have a material impact on its consolidated financial statements.

(4) Special Charges

The Company incurred special charges related to severance, office closing and other costs associated with its acquisition activity of $6.6 million and $8.2 million for the three and six months ended September 30, 2015, respectively, and $0.8 million and $1.1 million for the three and six months ended September 30, 2014, respectively.

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(5) Segment Information

The Company's reportable segments are semiconductor products and technology licensing.  The Company does not allocate operating expenses, interest income, interest expense, other income or expense, or provision for or benefit from income taxes to these segments for internal reporting purposes, as the Company does not believe that allocating these expenses is beneficial in evaluating segment performance.  Additionally, the Company does not allocate assets to segments for internal reporting purposes as it does not manage its segments by such metrics.

The following table represents net sales and gross profit for each segment for the three and six months ended September 30, 2015 (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30, 2015				September 30, 2015
	Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	518,216	$	277,775	$	1,028,905	$	563,529
Technology licensing	23,175		23,175		46,438		46,438
	$	541,391	$	300,950	$	1,075,343	$	609,967

The following table represents net sales and gross profit for each segment for the three and six months ended September 30, 2014 (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30, 2014				September 30, 2014
	Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	523,659	$	284,870	$	1,032,098	$	570,952
Technology licensing	22,584		22,584		43,021		43,021
	$	546,243	$	307,454	$	1,075,119	$	613,973

(6) Investments

The Company's investments are intended to establish a high-quality portfolio that preserves principal, meets liquidity needs, avoids inappropriate concentrations, and delivers an appropriate yield in relationship to the Company's investment guidelines and market conditions.  The following is a summary of available-for-sale securities at September 30, 2015 (amounts in thousands):

	Available-for-sale Securities
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Government agency bonds	$	866,941	$	1,304	$	(51	)	$	868,194
Municipal bonds	42,579		11		(516		)	42,074
Auction rate securities	9,825		—		—			9,825
Corporate bonds and debt	1,127,390		1,323		(1,430		)	1,127,283
	$	2,046,735	$	2,638	$	(1,997	)	$	2,047,376

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The following is a summary of available-for-sale securities at March 31, 2015 (amounts in thousands):

	Available-for-sale Securities
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Government agency bonds	$	741,780	$	676	$	(200	)	$	742,256
Municipal bonds	41,552		155		(9		)	41,698
Auction rate securities	9,825		—		—			9,825
Time deposits (1)	506		—		—			506
Corporate bonds and debt	924,818		2,376		(265		)	926,929
Marketable equity securities	1,362		11,804		—			13,166
	$	1,719,843	$	15,011	$	(474	)	$	1,734,380

⁽¹⁾ Time deposits in various financial institutions with maturities greater than three months that will mature within one year.

At September 30, 2015, the Company's available-for-sale securities are presented on the condensed consolidated balance sheets as short-term investments of $1,462.5 million and long-term investments of $584.9 million.  At March 31, 2015, the Company's available-for-sale securities are presented on the condensed consolidated balance sheets as short-term investments of $1,351.1 million and long-term investments of $383.3 million.

At March 31, 2015, the Company's marketable equity securities consisted of an investment in Hua Hong Semiconductor Limited (Hua Hong), which effected its initial public offering on the Hong Kong stock exchange on October 15, 2014. The Company sold all of its remaining shares of Hua Hong in the three months ended June 30, 2015.

The Company sold available-for-sale securities for proceeds of $46.7 million and $135.8 million during the three and six months ended September 30, 2015, respectively. The Company sold available-for-sale securities for proceeds of $26.7 million and $170.7 million during the three and six months ended September 30, 2014, respectively. The Company had no material realized gains from the sale of available-for-sale securities during the three months ended September 30, 2015. During the six months ended September 30, 2015, the Company had net realized gains of $14.0 million, from sales of available-for-sale marketable equity and debt securities. The Company had no material realized gains from the sale of available-for-sale securities during the three and six months ended September 30, 2014. The Company determines the cost of an investment sold on an average cost basis at the individual security level for sales from multiple lots. For all other sales, the Company uses an adjusted cost basis at the individual security level.

The following tables show all investments in an unrealized loss position for which an other-than-temporary impairment has not been recognized and the related gross unrealized losses and fair value, aggregated by investment category and the length of time that the individual securities have been in a continuous unrealized loss position (amounts in thousands):

	September 30, 2015
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government agency bonds	$	140,775	$	(51	)	$	10,000	$	—		$	150,775	$	(51	)
Municipal bonds	34,222		(516		)	—		—			34,222		(516		)
Corporate bonds and debt	391,344		(1,361		)	26,828		(69		)	418,172		(1,430		)
	$	566,341	$	(1,928	)	$	36,828	$	(69	)	$	603,169	$	(1,997	)

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	March 31, 2015
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government agency bonds	$	162,948	$	(142	)	$	29,942	$	(58	)	$	192,890	$	(200	)
Municipal bonds	13,318		(9		)	—		—			13,318		(9		)
Corporate bonds and debt	163,095		(219		)	19,021		(46		)	182,116		(265		)
	$	339,361	$	(370	)	$	48,963	$	(104	)	$	388,324	$	(474	)

Management does not believe any of the unrealized losses represent an other-than-temporary impairment based on its evaluation of available evidence as of September 30, 2015 and the Company's intent is to hold these investments until these assets are no longer impaired, except for certain auction rate securities (ARS).  For those debt securities not scheduled to mature until after September 30, 2016, such recovery is not anticipated to occur in the next year and these investments have been classified as long-term investments on the condensed consolidated balance sheet.

The amortized cost and estimated fair value of the available-for-sale securities at September 30, 2015, by contractual maturity, excluding corporate debt of $6.2 million, which has no contractual maturity, are shown below (amounts in thousands).  Expected maturities can differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties, and the Company views its available-for-sale securities as available for current operations.

	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Available-for-sale
Due in one year or less	$	377,682	$	650	$	(42	)	$	378,290
Due after one year and through five years	1,520,303		1,942		(1,954		)	1,520,291
Due after five years and through ten years	132,735		46		(1		)	132,780
Due after ten years	9,825		—		—			9,825
	$	2,040,545	$	2,638	$	(1,997	)	$	2,041,186

(7) Fair Value Measurements

Accounting rules for fair value clarify that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants.  As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability.  As a basis for considering such assumptions, the Company utilizes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1- Observable inputs such as quoted prices in active markets;

Level 2- Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and

Level 3- Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Marketable Debt Instruments

Marketable debt instruments include instruments such as corporate bonds and debt, government agency bonds, bank deposits, municipal bonds, and money market mutual funds. When the Company uses observable market prices for identical securities that are traded in less active markets, the Company classifies its marketable debt instruments as Level 2. When observable market prices for identical securities are not available, the Company prices its marketable debt instruments using non-binding market consensus prices that are corroborated with observable market data; quoted market prices for similar instruments; or pricing models, such as a discounted cash flow model, with all significant inputs derived from or corroborated with observable market data. Non-binding market consensus prices are based on the proprietary valuation models of pricing providers or brokers. These valuation models incorporate a number of inputs, including non-binding and binding broker quotes; observable market prices for identical or similar securities; and the internal assumptions of pricing providers or brokers

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that use observable market inputs and, to a lesser degree, unobservable market inputs. The Company corroborates non-binding market consensus prices with observable market data using statistical models when observable market data exists. The discounted cash flow model uses observable market inputs, such as LIBOR-based yield curves, currency spot and forward rates, and credit ratings.

Derivatives

The Company's derivative assets include interest rate swaps that are classified as Level 2 as the Company uses inputs other than quoted prices that are observable for the assets. The Level 2 derivative assets are primarily valued using standard calculations and models that use readily observable market data as their basis.

Assets Measured at Fair Value on a Recurring Basis

Assets measured at fair value on a recurring basis at September 30, 2015 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	217,281	$	—	$	—	$	217,281
Deposit accounts	—		321,797		—		321,797
Short-term investments:
Corporate bonds and debt	—		737,194		—		737,194
Government agency bonds	—		717,419		—		717,419
Municipal bonds	—		7,853		—		7,853
Long-term investments:
Corporate bonds and debt	—		383,899		6,190		390,089
Government agency bonds	—		150,775		—		150,775
Municipal bonds	—		34,221		—		34,221
Auction rate securities	—		—		9,825		9,825
Derivative assets	—		10,963		—		10,963
Total assets measured at fair value	$	217,281	$	2,364,121	$	16,015	$	2,597,417

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Assets measured at fair value on a recurring basis at March 31, 2015 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	279,833	$	—	$	—	$	279,833
Deposit accounts	—		327,982		—		327,982
Short-term investments:
Marketable equity securities	13,166		—		—		13,166
Corporate bonds and debt	—		756,664		—		756,664
Time deposits (1)	—		506		—		506
Government agency bonds	—		549,737		—		549,737
Municipal bonds	—		30,981		—		30,981
Long-term investments:
Corporate bonds and debt	—		164,075		6,190		170,265
Government agency bonds	—		192,519		—		192,519
Municipal bonds	—		10,717		—		10,717
Auction rate securities	—		—		9,825		9,825
Derivative assets	—		8,928		—		8,928
Total assets measured at fair value	$	292,999	$	2,042,109	$	16,015	$	2,351,123

⁽¹⁾ Time deposits in various financial institutions with maturities greater than three months that will mature within one year.

There were no transfers between Level 1 and Level 2 during the three and six-month periods ended September 30, 2015 or the year ended March 31, 2015.

At September 30, 2015 and at March 31, 2015, the Company's ARS for which auctions have been unsuccessful are made up of securities related to the insurance industry valued at $9.8 million with a par value of $22.4 million. The Company estimated the fair value of its ARS, which are classified as Level 3 securities, based on the following: (i) the underlying structure of each security; (ii) the present value of future principal and interest payments discounted at rates considered to reflect current market conditions; (iii) consideration of the probabilities of default, auction failure, or repurchase at par for each period; and (iv) estimates of the recovery rates in the event of default for each security. The significant unobservable inputs used in the fair value measurement of the ARS as of September 30, 2015 were estimated risk free discount rates, liquidity risk premium, and the liquidity horizon. The risk free discount rate applied to these securities was 2% to 2.5% adjusted for the liquidity risk premium which ranged from 9.1% to 29.5%. The anticipated liquidity horizon ranged from 7 to 10 years. A significant increase in the liquidity premium, discount rate or liquidity horizon, in isolation, would lead to a significantly lower fair value measurement. Each quarter, the Company investigates material changes in the fair value measurements of its ARS.

Assets Measured and Recorded at Fair Value on a Non-Recurring Basis

The Company's non-marketable equity, cost method investments, and non-financial assets, such as intangible assets, assets held for sale and property, plant and equipment, are recorded at fair value on a non-recurring basis. These assets are subject to fair value adjustments in certain circumstances, for example, when there is evidence of impairment.  

The Company's non-marketable and cost method investments are monitored on a quarterly basis for impairment charges.  The fair values of these investments have been determined as Level 3 fair value measurements because the valuations use unobservable inputs that require management's judgment due to the absence of quoted market prices. There were no impairment charges recognized on these investments during each of the three and six-month periods ended September 30, 2015 and September 30, 2014. These investments are included in other assets on the condensed consolidated balance sheet.

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The fair value measurements related to the Company's non-financial assets, such as intangible assets, assets held for sale and property, plant and equipment are based on available market prices at the measurement date based on transactions of similar assets and third-party independent appraisals, less costs to sell where appropriate. The Company classifies these measurements as Level 2.

(8) Fair Value of Financial Instruments

The carrying amount of cash equivalents approximates fair value because their maturity is less than three months.  Management believes the carrying amount of the equity and cost-method investments materially approximated fair value at September 30, 2015 based upon unobservable inputs. The fair values of these investments have been determined as Level 3 fair value measurements. The fair values of the Company's line of credit borrowings are estimated using discounted cash flow analyses, based on the Company's current incremental borrowing rates for similar types of borrowing arrangements and approximate carrying value. Based on the borrowing rates currently available to the Company for bank loans with similar terms and average maturities, the fair value of the Company's line of credit borrowings at September 30, 2015 approximated book value and are considered Level 2 in the fair value hierarchy described in Note 7. The carrying amount of accounts receivable, accounts payable and accrued liabilities approximates fair value due to the short-term maturity of the amounts and are considered Level 2 in the fair value hierarchy. 

Fair Value of Subordinated Convertible Debentures

The Company measures the fair value of its senior and junior subordinated convertible debentures for disclosure purposes. These fair values are based on observable market prices for these debentures, which are traded in less active markets and are therefore classified as a Level 2 fair value measurement, and exclude the impacts of derivative activity.

The carrying amounts and fair values of the Company’s senior and junior subordinated convertible debentures as of September 30, 2015 and March 31, 2015 are as follows (amounts in thousands):

	September 30, 2015				March 31, 2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
1.625% Senior Subordinated Convertible Debentures	$	1,197,792	$	1,637,767	$	1,174,036	$	1,787,531
2.125% Junior Subordinated Convertible Debentures	$	193,630	$	1,000,673	$	190,870	$	1,124,125

(9) Accounts Receivable

Accounts receivable consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Trade accounts receivable	$	280,257	$	269,844
Other	3,481		6,714
	283,738		276,558
Less allowance for doubtful accounts	2,675		2,621
	$	281,063	$	273,937

(10) Inventories

The components of inventories consist of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Raw materials	$	15,135	$	13,263
Work in process	248,277		197,565
Finished goods	100,348		68,628
	$	363,760	$	279,456

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Inventories are valued at the lower of cost or market using the first-in, first-out method. Inventory impairment charges establish a new cost basis for inventory and charges are not subsequently reversed to income even if circumstances later suggest that increased carrying amounts are recoverable. The inventory balance at September 30, 2015 includes a $37.2 million acquired inventory fair value adjustment resulting from the acquisition of Micrel.

(11) Assets Held for Sale

During the year ended March 31, 2015, the Company began to actively market property it acquired as part of the Supertex acquisition.   The Company sold the property on July 22, 2015 for $14.3 million. As of March 31, 2015, the Company had classified the assets as held for sale on its condensed consolidated balance sheet at its estimated fair value of approximately $14.0 million.

(12) Property, Plant and Equipment

Property, plant and equipment consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Land	$	63,934	$	55,624
Building and building improvements	451,594		434,403
Machinery and equipment	1,632,407		1,576,074
Projects in process	92,091		76,315
	2,240,026		2,142,416
Less accumulated depreciation and amortization	1,608,426		1,560,844
	$	631,600	$	581,572

Depreciation expense attributed to property, plant and equipment was $26.2 million and $50.9 million for the three and six months ended September 30, 2015, respectively, and $24.3 million and $47.6 million for the three and six months ended September 30, 2014, respectively.

(13) Noncontrolling Interests

The following table presents the changes in the components of noncontrolling interests for the six months ended September 30, 2015 (amounts in thousands):

	Noncontrolling Interests
Balance at March 31, 2015	$	16,372
Net loss attributable to noncontrolling interests	(207		)
Purchase of additional interests	(16,165		)
Balance at September 30, 2015	$	—

The following table presents the effect of changes in the Company's ownership interest in ISSC on the Company's stockholders' equity for the six months ended September 30, 2015 (amounts in thousands):

	Six Months Ended
	September 30, 2015
Net income attributable to Microchip Technology stockholders	$	195,566
Decrease in paid-in capital for purchase of additional interests	(1,610		)
Transfers from noncontrolling interest	(1,610		)
Change from net income attributable to Microchip Technology stockholders and transfers from noncontrolling interest	$	193,956

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(14)    Intangible Assets and Goodwill

Intangible assets consist of the following (amounts in thousands):

	September 30, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	778,835	$	(258,503	)	$	520,332
Customer-related	334,369		(222,817		)	111,552
Trademarks and trade names	15,730		(10,569		)	5,161
Backlog	31,804		(27,679		)	4,125
In-process technology	60,914		—			60,914
Distribution rights	5,579		(5,280		)	299
Covenants not to compete	400		(400		)	—
	$	1,227,631	$	(525,248	)	$	702,383

	March 31, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	569,942	$	(209,676	)	$	360,266
Customer-related	263,969		(193,483		)	70,486
Trademarks and trade names	15,730		(9,529		)	6,201
Backlog	26,304		(26,304		)	—
In-process technology	67,142		—			67,142
Distribution rights	5,580		(5,258		)	322
Covenants not to compete	400		(400		)	—
	$	949,067	$	(444,650	)	$	504,417

The Company amortizes intangible assets over their expected useful lives, which range between 1 and 15 years.  During the three months ended September 30, 2015, as a result of the Micrel transaction, the Company acquired $176.8 million of core and developed technology which has a weighted average amortization period of 10 years, $70.4 million of customer-related intangible assets which has a weighted average amortization period of 5 years, $5.5 million of intangible assets related to backlog with an amortization period of 1 year and $22.1 million of in-process technology which will begin amortization once the technology reaches technological feasibility. During the six months ended September 30, 2015, $28.3 million of in-process technology reached technological feasibility and was reclassified as core and developed technology and began being amortized over its estimated useful life. The following is an expected amortization schedule for the intangible assets for the remainder of fiscal 2016 through fiscal 2020, absent any future acquisitions or impairment charges (amounts in thousands):

Year ending March 31,	Projected Amortization Expense
2016	$98,775
2017	137,051
2018	110,462
2019	93,561
2020	75,320

Amortization expense attributed to intangible assets was $44.9 million and $80.6 million for the three and six months ended September 30, 2015, respectively. Amortization expense attributed to intangible assets was $46.5 million and $84.2 million for the three and six months ended September 30, 2014, respectively.  In the three and six months ended September 30, 2015, approximately $0.9 million and $1.7 million was charged to cost of sales, respectively, and approximately $44.0 million and $78.9 million was charged to operating expenses, respectively.  In the three and six months ended September 30, 2014,

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approximately $1.0 million and $2.0 million was charged to cost of sales, respectively, and approximately $45.5 million and $82.2 million was charged to operating expenses, respectively.  The Company recognized impairment charges of $0.5 million in each of the three and six months ended September 30, 2015. The Company recognized impairment charges of $0.2 million and $0.6 million the three and six months ended September 30, 2014, respectively.

Goodwill activity for the six months ended September 30, 2015 was as follows (amounts in thousands):

	Semiconductor Products Reporting Unit		Technology Licensing Reporting Unit
Balance at March 31, 2015	$	552,071	$	19,200
Additions due to the acquisition of Micrel	437,060		—
Adjustments due to acquisition of ISSC	389		—
Balance at September 30, 2015	$	989,520	$	19,200

At March 31, 2015, the Company applied a qualitative goodwill impairment screen to its two reporting units, concluding it was not more likely than not that goodwill was impaired. Through September 30, 2015, the Company has never recorded an impairment charge against its goodwill balance.

(15) Income Taxes

The provision for income taxes reflects tax on foreign earnings and federal and state tax on U.S. earnings.  The Company had an effective tax rate benefit of 12.6% for the six-month period ended September 30, 2015 and an effective tax rate of 8.0% for the six-month period ended September 30, 2014.  The Company's effective tax rate for the six-month period ended September 30, 2015 is lower compared to the prior year primarily due to favorable tax impacts from the Micrel purchase accounting adjustments. The Company's effective tax rate is lower than statutory rates in the U.S. due primarily to its mix of earnings in foreign jurisdictions with lower tax rates.

At September 30, 2015, the Company had $225.1 million of unrecognized tax benefits.  Unrecognized tax benefits increased by $26.2 million compared to March 31, 2015 primarily as a result of the acquisition of Micrel, the ongoing accrual for uncertain tax positions and the accrual of deficiency interest on these positions.

The Company files U.S. federal, U.S. state, and foreign income tax returns.  For U.S. federal, and in general for U.S. state tax returns, the fiscal 2011 and later tax years remain open for examination by tax authorities.  The U.S. Internal Revenue Service (IRS) is currently auditing Microchip's 2011 and 2012 tax years.  For foreign tax returns, the Company is generally no longer subject to income tax examinations for years prior to fiscal 2007.

The Company recognizes liabilities for anticipated tax audit issues in the U.S. and other domestic and international tax jurisdictions based on its estimate of whether, and the extent to which, additional tax payments are more likely than not.  The Company believes that it has appropriate support for the income tax positions taken and to be taken on its tax returns and that its accruals for tax liabilities are adequate for all open years based on an assessment of many factors including past experience and interpretations of tax laws applied to the facts of each matter.

The Company believes it maintains appropriate reserves to offset any potential income tax liabilities that may arise upon final resolution of matters for open tax years.  If such reserve amounts ultimately prove to be unnecessary, the resulting reversal of such reserves would result in tax benefits being recorded in the period the reserves are no longer deemed necessary.  If such amounts prove to be less than an ultimate assessment, a future charge to expense would be recorded in the period in which the assessment is determined.  Although the timing of the resolution and/or closure of audits is highly uncertain, the Company does not believe it is reasonably possible that the unrecognized tax benefits would materially change in the next 12 months.

(16) 1.625% Senior Subordinated Convertible Debentures

In February 2015, the Company issued $1,725.0 million principal amount of 1.625% senior subordinated convertible debentures due February 15, 2025. The debentures are subordinated to the Company's senior debt, including amounts borrowed under its amended credit facility, but are senior to the Company's outstanding 2.125% junior subordinated convertible debentures. The debentures are convertible, subject to certain conditions, into cash, shares of the Company's common stock or a combination thereof, at the Company's election, at an initial base conversion rate of 14.5654 shares of common stock per

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$1,000 principal amount of debentures, representing an initial base conversion price of approximately $68.66 per share of common stock.  As a result of cash dividends paid since the issuance of the debentures, the conversion rate has been adjusted to 14.8954 shares of common stock per $1,000 of principal amount of debentures, representing a base conversion price of approximately $67.13 per share of common stock. In addition, if at the time of conversion the applicable price of the Company's common stock exceeds the base conversion price, the conversion rate will be increased by up to an additional 7.2827 shares of common stock per $1,000 principal amount of debentures, as determined pursuant to a specified formula. As a result of cash dividends paid since the issuance of the debentures, the maximum number of additional shares that may be issued if the stock price of the Company's common stock exceeds the base conversion price has been adjusted to 7.4477 shares of common stock per $1,000 principal amount of debentures. However, in no event will the conversion rate exceed 20.3915 (adjusted to 20.8535 as a result of cash dividends paid since the issuance of the debentures) shares of common stock per $1,000 principal amount of debentures. The Company received net proceeds of approximately $1,694.7 million after deduction of issuance costs of approximately $30.3 million. The $30.3 million in issuance costs was split between a debt component of $20.4 million and an equity component of $9.9 million.  The $20.4 million in debt issuance costs is recorded in other assets and is being amortized using the effective interest method over the term of the debentures.

Prior to the close of business on the business day immediately preceding November 15, 2024, the debentures will be convertible at the option of the debenture holders only upon the satisfaction of specified conditions and during certain periods. Thereafter until close of business on the second scheduled trading day immediately preceding February 15, 2025, the debentures will be convertible at the option of the debenture holders at any time regardless of these conditions. Accrued and unpaid interest will be considered fully paid upon settlement of shares.

As the debentures can be settled in cash upon conversion, for accounting purposes, the debentures were bifurcated into a liability component and an equity component, which are both initially recorded at fair value.  The carrying value of the equity component at September 30, 2015 and March 31, 2015 was $564.9 million.  The estimated fair value of the liability component of the debentures at the issuance date was $1,160.1 million resulting in a debt discount of $564.9 million.  The unamortized debt discount was $538.2 million at September 30, 2015 and $559.3 million at March 31, 2015.  The remaining period over which the unamortized debt discount will be recognized as non-cash interest expense is 9.37 years.  In the three and six months ended September 30, 2015, the Company recognized $10.6 million and $21.1 million, respectively, in non-cash interest expense related to the amortization of the debt discount.  The Company recognized $7.0 million and $14.0 million of interest expense related to the 1.625% coupon on the debentures in the three and six months ended September 30, 2015, respectively. The effective interest rate of the debentures is 6.1%.

(17) 2.125% Junior Subordinated Convertible Debentures

The Company's $575.0 million principal amount of 2.125% junior subordinated convertible debentures due December 15, 2037, are subordinated in right of payment to any future senior debt of the Company and are effectively subordinated in right of payment to the liabilities of the Company's subsidiaries.  The debentures are convertible, subject to certain conditions, into cash, shares of the Company's common stock or a combination thereof, at the Company's election, at an initial conversion rate of 29.2783 shares of common stock per $1,000 principal amount of debentures, representing an initial conversion price of approximately $34.16 per share of common stock.  As of September 30, 2015, the holders of the debentures had the right to convert their debentures between October 1, 2015 and December 31, 2015 because for at least 20 trading days during the 30 consecutive trading day period ending on September 30, 2015, the Company's common stock had a last reported sale price greater than 130% of the conversion price. As of September 30, 2015, a holder could realize more economic value by selling its debentures in the over the counter market than from converting its debentures. As a result of cash dividends paid since the issuance of the debentures, the conversion rate has been adjusted to 40.4715 shares of common stock per $1,000 of principal amount of debentures, representing a conversion price of approximately $24.71 per share of common stock. The if-converted value of the debentures exceed the principal amount by $427.8 million at September 30, 2015. The debentures include a contingent interest mechanism that begins in December 2017. The terms of the contingent interest include a 0.25% interest rate if the debentures are trading at less than $400 and 0.5% if the debentures are trading at greater than $1,500. Based on the current trading price of the debentures, the contingent interest rate in calendar year 2017 would be 0.5%.

As the debentures can be settled in cash upon conversion, for accounting purposes, the debentures were bifurcated into a liability component and an equity component, which are both initially recorded at fair value.  The carrying value of the equity component at September 30, 2015 and at March 31, 2015 was $411.2 million.  The estimated fair value of the liability component of the debentures at the issuance date was $163.8 million, resulting in a debt discount of $411.2 million.  The unamortized debt discount was $381.1 million at September 30, 2015 and $383.7 million at March 31, 2015.  The remaining period over which the unamortized debt discount will be recognized as non-cash interest expense is 22.25 years.  In the three and six months ended September 30, 2015, the Company recognized $1.3 million and $2.6 million, respectively, in non-cash interest expense related to the amortization of the debt discount.  In the three and six months ended September 30, 2014, the

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Company recognized $2.4 million and $4.8 million, respectively, in non-cash interest expense related to the amortization of the debt discount.  The Company recognized $3.1 million and $6.1 million of interest expense related to the 2.125% coupon on the debentures in the three and six months ended September 30, 2015, respectively, compared to $6.1 million and $12.2 million in the three and six months ended September 30, 2014, respectively. The Company acquired $575.0 million in aggregate principal amount of its 2.125% junior subordinated convertible debentures in the March 2015 quarter which is the primary reason for the reductions of interest expense in the three and six months ended September 30, 2015 compared to the prior year periods. The effective interest rate of the debentures is 9.1%.

(18) Credit Facility

In February 2015, the Company amended its existing $2.0 billion credit agreement by increasing the revolving credit facility to $2.555 billion and removing the term loan portion of the agreement. The new credit agreement includes two tranches. One tranche consists of bank commitments through February 2020 and another tranche consists of bank commitments through June 2018, the maturity date of the original credit agreement. The Company's increase option was also adjusted to $300 million. The credit agreement provides for a $125 million foreign currency sublimit, a $25 million letter of credit sublimit and a $25 million swingline loan sublimit. The amended credit agreement was accounted for as a modification and as such any remaining unamortized deferred costs associated with the prior credit agreement was associated with the new credit agreement since the borrowing capacity was increased. At September 30, 2015, $1,296.5 million of revolving credit facility borrowings were outstanding under the credit agreement compared to $462.0 million at March 31, 2015.

The loans under the credit agreement bear interest, at the Company's option, at the base rate plus a spread of 0.25% to 1.25% or an adjusted LIBOR rate (based on one, two, three, or six-month interest periods) plus a spread of 1.25% to 2.25%, in each case with such spread being determined based on the consolidated leverage ratio for the preceding four fiscal quarters (in the case of the 2018 tranche revolving loans) or the consolidated senior leverage ratio (in the case of the 2020 tranche revolving loans). The base rate means the highest of JPMorgan Chase Bank, N.A.'s prime rate, the federal funds rate plus a margin equal to 0.50% and the adjusted LIBOR rate for a 1-month interest period plus a margin equal to 1.00%. Swingline loans accrue interest at a per annum rate based on the base rate plus the applicable margin for base rate loans. Base rate loans may only be made in U.S. dollars. The Company is also obligated to pay other customary administration fees and letter of credit fees for a credit facility of this size and type.

Interest is due and payable in arrears quarterly for loans bearing interest at the base rate and at the end of an interest period (or at each three-month interval in the case of loans with interest periods greater than three months) in the case of loans bearing interest at the adjusted LIBOR rate. Interest expense related to the credit agreement was approximately $4.9 million and $8.5 million in the three and six months ended September 30, 2015, respectively, and approximately $5.1 million and $10.1 million in the three and six months ended September 30, 2014, respectively. Principal, together with all accrued and unpaid interest, is due and payable on the respective tranche maturity date, which is June 27, 2018 and February 4, 2020. The weighted average interest rate on short-term borrowings outstanding at September 30, 2015 related to the credit agreement was 1.44%. The Company also pays a quarterly commitment fee on the available but unused portion of its line of credit which is calculated on the average daily available balance during the period. The Company may prepay the loans and terminate the commitments, in whole or in part, at any time without premium or penalty, subject to certain conditions including minimum amounts in the case of commitment reductions and reimbursement of certain costs in the case of prepayments of LIBOR loans.

The Company's obligations under the credit agreement are guaranteed by certain of its subsidiariesmeeting materiality thresholds set forth in the credit agreement. To secure the Company's obligations under the credit agreement, the Company and its domestic subsidiaries will be required to pledge the equity securities of certain of their respective material subsidiaries, subject to certain exceptions and limitations.

The credit agreement contains customary affirmative and negative covenants, including covenants that limit or restrict the Company and its subsidiaries' ability to, among other things, incur subsidiary indebtedness, grant liens, merge or consolidate, dispose of assets, make investments, make acquisitions, enter into certain transactions with affiliates, pay dividends or make distributions, repurchase stock, enter into restrictive agreements and enter into sale and leaseback transactions, in each case subject to customary exceptions for a credit facility of this size and type. The Company is also required to maintain compliance with consolidated senior and total leverage ratios and a consolidated interest coverage ratio. At September 30, 2015, the Company was in compliance with these covenants.

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The credit agreement includes customary events of default that include, among other things, non-payment defaults, inaccuracy of representations and warranties, covenant defaults, cross default to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults, ERISA defaults and a change of control default. The occurrence of an event of default could result in the acceleration of the obligations under the credit agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the credit agreement at a per annum rate equal to 2.00% above the applicable interest rate for any overdue principal and 2.00% above the rate applicable for base rate loans for any other overdue amounts.

(19) Contingencies

In the ordinary course of the Company's business, it is involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them.  The Company also periodically receives notifications from various third parties alleging infringement of patents, intellectual property rights or other matters.  With respect to pending legal actions to which the Company is a party, although the outcomes of these actions are not generally determinable, the Company believes that the ultimate resolution of these matters will not have a material adverse effect on its financial position, cash flows or results of operations.  Litigation relating to the semiconductor industry is not uncommon, and the Company is, and from time to time has been, subject to such litigation.  No assurances can be given with respect to the extent or outcome of any such litigation in the future.

The Company's technology license agreements generally include an indemnification clause that indemnifies the licensee against liability and damages (including legal defense costs) arising from any claims of patent, copyright, trademark or trade secret infringement by the Company's proprietary technology.  The terms of these indemnification provisions approximate the terms of the outgoing technology license agreements, which are typically perpetual unless terminated by either party for breach.  The possible amount of future payments the Company could be required to make based on agreements that specify indemnification limits, if such indemnifications were required on all of these agreements, is approximately $139 million. There are some licensing agreements in place that do not specify indemnification limits.  The Company had not recorded any liabilities related to these indemnification obligations as of September 30, 2015.

(20) Derivative Instruments

Freestanding Derivative Forward Contracts

Foreign Currency Exchange Rate Risk

The Company has international operations and is thus subject to foreign currency rate fluctuations.  To help manage the risk of changes in foreign currency rates, the Company periodically enters into derivative contracts comprised of foreign currency forward contracts to hedge its asset and liability foreign currency exposure and a portion of its foreign currency operating expenses.  Approximately 99% of the Company's sales are U.S. dollar denominated.  To date, the exposure related to foreign exchange rate volatility has not been material to the Company's operating results.  As of September 30, 2015 and March 31, 2015, the Company had no foreign currency forward contracts outstanding. The Company recognized an immaterial amount of net realized gains and losses on foreign currency forward contracts in each of the three and six months ended September 30, 2015 and 2014. Gains and losses from changes in the fair value of these foreign currency forward contracts and foreign currency exchange rate fluctuations are credited or charged to Other Income (Expense) on the condensed consolidated statements of income. The Company does not apply hedge accounting to its foreign currency derivative instruments.

Fair Value Hedges

For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivatives as well as the offsetting gain or loss on the hedged item attributable to the hedged risk are recognized in earnings. Interest rate derivative instruments designated as fair value hedges are designed to manage the exposure to interest rate movements and to reduce borrowing costs by converting fixed-rate debt into floating-rate debt. Under these agreements, the Company agrees to exchange, at specified intervals, the difference between the fixed and floating interest amounts calculated by reference to an agreed-upon notional principal amount.

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In March 2015, the Company entered into ten-year fixed-to-floating interest rate swap agreements designated as fair value hedges of the changes in fair value of a portion of the Company's fixed-rate 1.625% senior subordinated convertible debentures due to changes in the LIBOR swap rate, the designated benchmark interest rate. The Company pays variable interest equal to the three-month LIBOR minus 53.6 basis points, and it receives a fixed interest rate of 1.625%. The notional amount of these contracts outstanding at September 30, 2015 and at March 31, 2015 was $431.3 million, representing 25% of the principal amount of the senior subordinated convertible debentures.

The following table summarizes the fair value amounts of derivative instruments reported on the condensed consolidated balance sheets in other assets (amounts in thousands):

Derivatives designated as hedging instruments	September 30, 2015		March 31, 2015
Interest rate contracts	$	10,963	$	8,928

The following table summarizes the location and amount of the gain or loss on the hedged item attributable to the changes in the LIBOR swap rate and the offsetting gain or loss on the related interest rate swap agreements for the three and six months ended September 30, 2015. The difference represents hedge ineffectiveness (amounts in thousands):

	Three Months Ended					Six Months Ended
	September 30, 2015					September 30, 2015
Income Statement Classification	Gain (Loss) on Senior Subordinated Convertible Debentures			Gain (Loss) on Interest Rate Swap		Gain (Loss) on Senior Subordinated Convertible Debentures			Gain (Loss) on Interest Rate Swap
Other Income (Expense)	$	(17,573	)	$	17,005	$	(2,642	)	$	2,034

(21) Comprehensive Income (Loss)

The following table presents the changes in the components of accumulated other comprehensive income (AOCI) for the six months ended September 30, 2015 (amounts in thousands):

	Unrealized holding gains (losses) available-for-sale securities			Minimum pension liability		Foreign Currency			Total
Accumulated other comprehensive income (loss) at March 31, 2015	$	14,537		$	13	$	(3,474	)	$	11,076
Other comprehensive income before reclassifications	70			—		—			70
Amounts reclassified from accumulated other comprehensive income (loss)	(13,965		)	—		—			(13,965		)
Net other comprehensive loss	(13,895		)	—		—			(13,895		)
Purchase of shares from noncontrolling interest	—			—		(276		)	(276		)
Accumulated other comprehensive income (loss) at September 30, 2015	$	642		$	13	$	(3,750	)	$	(3,095	)

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The table below details where reclassifications of realized transactions out of AOCI are recorded on the condensed consolidated statements of income (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
Description of AOCI Component	2015		2014		2015		2014			Related Statement  of Income Line
Unrealized gains on available-for-sale securities	$	6	$	62	$	13,965	$	96		Other income
Taxes	—		—		—		(12		)	Provision for income taxes
Reclassification of realized transactions, net of taxes	$	6	$	62	$	13,965	$	84		Net income

(22) Share-Based Compensation

The following table presents the details of the Company's share-based compensation expense (amounts in thousands):

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Cost of sales	$	2,398	(1)	$	2,640	(1)	$	4,055	(1)	$	4,695	(1)
Research and development	8,670			7,261			15,768			13,570
Selling, general and administrative	11,958			5,372			17,315			10,329
Pre-tax effect of share-based compensation	23,026			15,273			37,138			28,594
Income tax benefit	8,574			1,833			12,106			3,253
Net income effect of share-based compensation	$	14,452		$	13,440		$	25,032		$	25,341

(1) During the three and six months ended September 30, 2015, $1.8 million and $3.6 million, respectively, of share-based compensation expense was capitalized to inventory and $2.4 million and $4.1 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.  During the three and six months ended September 30, 2014, $1.6 million and $3.3 million, respectively, of share-based compensation expense was capitalized to inventory and $2.6 million and $4.7 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.

(23) Net Income Per Common Share Attributable to Microchip Technology Stockholders

The following table sets forth the computation of basic and diluted net income per common share attributable to Microchip Technology stockholders (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net income attributable to Microchip Technology	$	64,899	$	93,641	$	195,566	$	183,550
Weighted average common shares outstanding	204,275		200,629		203,254		200,408
Dilutive effect of stock options and RSUs	3,065		3,767		3,228		3,780
Dilutive effect of 2037 junior subordinated convertible debentures	9,759		20,888		10,451		20,718
Weighted average common and potential common shares outstanding	217,099		225,284		216,933		224,906
Basic net income per common share attributable to Microchip Technology stockholders	$	0.32	$	0.47	$	0.96	$	0.92
Diluted net income per common share attributable to Microchip Technology stockholders	$	0.30	$	0.42	$	0.90	$	0.82

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The Company computed basic earnings per common share attributable to its stockholders using net income available to common stockholders and the weighted average number of common shares outstanding during the period. The Company computed diluted earnings per common share attributable to its stockholders using net income available to stockholders and the weighted average number of common shares outstanding plus potentially dilutive common shares outstanding during the period.

Potentially dilutive common shares from employee equity incentive plans are determined by applying the treasury stock method to the assumed exercise of outstanding stock options and the assumed vesting of outstanding RSUs.

Diluted net income per common share attributable to stockholders for the three and six months ended September 30, 2015 includes 9,759,393 shares and 10,451,083 shares, respectively, issuable upon the exchange of the Company's 2.125% junior subordinated convertible debentures due December 15, 2037 (see Note 17). Diluted net income per common share attributable to stockholders for the three and six months ended September 30, 2014 includes 20,887,608 shares and 20,717,720 shares, respectively, issuable upon the exchange of the Company's 2.125% junior subordinated convertible debentures due December 15, 2037.  The debentures have no impact on diluted net income per common share unless the average price of the Company's common stock exceeds the conversion price because the principal amount of the debentures will be settled in cash upon conversion.  Prior to conversion, the Company will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued when the Company's common stock price exceeds the conversion price using the treasury stock method.  The weighted average conversion price per share used in calculating the dilutive effect of the convertible debt for the three and six-month periods ended September 30, 2015 was $24.87 and $24.94, respectively. The weighted average conversion price per share used in calculating the dilutive effect of the convertible debt for the three and six-month periods ended September 30, 2014 was $25.58 and $25.67, respectively

There were no shares issuable upon the exchange of the Company's 1.625% senior subordinated convertible debentures due February 15, 2025 (see Note 16). The debentures have no impact on diluted net income per common share unless the average price of the Company's common stock exceeds the conversion price because the principal amount of the debentures will be settled in cash upon conversion.  Prior to conversion, the Company will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued when the Company's common stock price exceeds the conversion price using the treasury stock method.  The weighted average conversion price per share used in calculating the dilutive effect of the convertible debt for the three and six-month periods ended September 30, 2015 was $67.55 and $67.75, respectively.

Weighted average common shares exclude the effect of option shares which are not dilutive.  For the three and six months ended September 30, 2015, the number of option shares that were antidilutive was 182,848 and 47,296, respectively. There were no antidilutive option shares for the three and six months ended September 30, 2014.

(24) Stock Repurchase

In May 2015, the Company's Board of Directors authorized the repurchase of up to 20 million shares of its common stock in the open market or in privately negotiated transactions. During the three and six months ended September 30, 2015, the Company purchased 8.6 million shares of its common stock for a total of $363.8 million. As of September 30, 2015, approximately 24.4 million shares remained as treasury shares with the balance of the shares being used to fund share issuance requirements under the Company's equity incentive plans. There is no expiration date associated with this repurchase program.

(25) Dividends

A quarterly cash dividend of $0.3580 per share was paid on September 25, 2015 in the aggregate amount of $72.7 million.  Through the first six months of fiscal 2016, cash dividends of $0.7155 per share have been paid in the aggregate amount of $145.0 million. A quarterly cash dividend of $0.3585 per share was declared on November 4, 2015 and will be paid on December 4, 2015 to stockholders of record as of November 20, 2015. The Company expects the December payment of its quarterly cash dividend to be approximately $72.9 million.

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Item 2.    Management's Discussion and Analysis of Financial Condition and Results of Operations

This report, including "Part I – Item 2 Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Part II - Item 1A Risk Factors" contains certain forward-looking statements that involve risks and uncertainties, including statements regarding our strategy, financial performance and revenue sources.  We use words such as "anticipate," "believe," "plan," "expect," "future," "continue," "intend" and similar expressions to identify forward-looking statements.  Our actual results could differ materially from the results anticipated in these forward-looking statements as a result of certain factors including those set forth under "Risk Factors," beginning at page 44and elsewhere in this Form 10-Q.  Although we believe that the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, levels of activity, performance or achievements.  You should not place undue reliance on these forward-looking statements.  We disclaim any obligation to update information contained in any forward-looking statement.  These forward-looking statements include, without limitation, statements regarding the following:

• The effects that adverse global economic conditions and fluctuations in the global credit and equity markets may have on our financial condition and results of operations;

• The effects and amount of competitive pricing pressure on our product lines;

• Our ability to moderate future average selling price declines;

• The effect of product mix, capacity utilization, yields, fixed cost absorption, competition and economic conditions on gross margin;

• The amount of, and changes in, demand for our products and those of our customers;

• Our expectation that in the future we will acquire additional businesses that we believe will complement our existing businesses;

• Our expectation that in the future we will enter into joint development agreements or other business or strategic relationships with other companies;

• The level of orders that will be received and shipped within a quarter;

• Our expectation that our inventory levels will be flat to up 6 days, excluding impacts from the sell through of acquired inventory fair value mark-up, in the December 2015 quarter compared to the September 2015 quarter and that it will allow us to maintain competitive lead times and provide strong delivery performance to our customers;

• The effect that distributor and customer inventory holding patterns will have on us;

• Our belief that customers recognize our products and brand name and use distributors as an effective supply channel;

• Our intent to change the majority of the Micrel distributor contracts which will result in the deferral of revenue recognition;

• Anticipating increased customer requirements to meet voluntary criteria related to the reduction or elimination of substances in our products;

• Our belief that deferred cost of sales are recorded at their approximate carrying value and will have low risk of material impairment;

• Our belief that our direct sales personnel combined with our distributors provide an effective means of reaching our customer base;

• Our ability to increase the proprietary portion of our analog and interface product lines and the effect of such an increase;

• Our belief that our processes afford us both cost-effective designs in existing and derivative products and greater functionality in new product designs;

• The impact of any supply disruption we may experience;

• Our ability to effectively utilize our facilities at appropriate capacity levels and anticipated costs;

• That we adjust capacity utilization to respond to actual and anticipated business and industry-related conditions;

• That our existing facilities will provide sufficient capacity to respond to increases in demand with modest incremental capital expenditures;

• That manufacturing costs will be reduced by transition to advanced process technologies;

• Our ability to maintain manufacturing yields;

• Continuing our investments in new and enhanced products;

• The cost effectiveness of using our own assembly and test operations;

• Our anticipated level of capital expenditures;

• Continuation and amount of quarterly cash dividends;

• The sufficiency of our existing sources of liquidity to finance anticipated capital expenditures and otherwise meet our anticipated cash requirements, and the effects that our contractual obligations are expected to have on them;

• The impact of seasonality on our business;

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• The accuracy of our estimates used in valuing employee equity awards;

• That the resolution of legal actions will not have a material effect on our business, and the accuracy of our assessment of the probability of loss and range of potential loss;

• The recoverability of our deferred tax assets;

• The adequacy of our tax reserves to offset any potential tax liabilities, having the appropriate support for our income tax positions and the accuracy of our estimated tax rate;

• Our belief that the expiration of any tax holidays will not have a material impact on our overall tax expense or effective tax rate;

• Our belief that the estimates used in preparing our consolidated financial statements are reasonable;

• Our actions to vigorously and aggressively defend and protect our intellectual property on a worldwide basis;

• Our ability to obtain patents and intellectual property licenses and minimize the effects of litigation;

• The level of risk we are exposed to for product liability claims or indemnification claims;

• The effect of fluctuations in market interest rates on our income and/or cash flows;

• The effect of fluctuations in currency rates;

• Our belief that any of the unrealized losses in our investment portfolio represent an other-than-temporary impairment and that recovery is not anticipated to occur in the next year;

• That our offshore earnings are considered to be permanently reinvested offshore and that we could determine to repatriate some of our offshore earnings in future periods to fund stockholder dividends, share repurchases, acquisitions or other corporate activities;

• That a significant portion of our future cash generation will be in our foreign subsidiaries;

• Our intention to indefinitely reinvest undistributed earnings of certain non-US subsidiaries in those subsidiaries;

• Our intent to maintain a high-quality investment portfolio that preserves principal, meets liquidity needs, avoids inappropriate concentrations and delivers an appropriate yield; and

• Our ability to collect accounts receivable.

We begin our Management's Discussion and Analysis of Financial Condition and Results of Operations (MD&A) with a summary of our overall business strategy to give the reader an overview of the goals of our business and the overall direction of our business and products.  This is followed by a discussion of the Critical Accounting Policies and Estimates that we believe are important to understanding the assumptions and judgments incorporated in our reported financial results.  We then discuss our Results of Operations for the three and six months ended September 30, 2015 compared to the three and six months ended September 30, 2014.  We then provide an analysis of changes in our balance sheet and cash flows, and discuss our financial commitments in sections titled "Liquidity and Capital Resources," "Contractual Obligations" and "Off-Balance Sheet Arrangements." 

Strategy

Our goal is to be a worldwide leader in providing specialized semiconductor products for a wide variety of embedded control applications. Our strategic focus is on the embedded control market, which includes microcontrollers, high-performance linear and mixed signal devices, power management and thermal management devices, connectivity devices, interface devices, Serial EEPROMs, SuperFlash memory products, our patented KeeLoq^® security devices and Flash IP solutions.  We provide highly cost-effective embedded control products that also offer the advantages of small size, high performance, low voltage/power operation and ease of development, enabling timely and cost-effective embedded control product integration by our customers.  We license our SuperFlash technology and other technologies to wafer foundries, integrated device manufacturers and design partners throughout the world for use in the manufacture of advanced microcontroller products.

We sell our products to a broad base of domestic and international customers across a variety of industries.  The principal markets that we serve include consumer, automotive, industrial, office automation and telecommunications.  Our business is subject to fluctuations based on economic conditions within these markets. 

Our manufacturing operations include wafer fabrication, wafer probe and assembly and test.  The ownership of a substantial portion of our manufacturing resources is an important component of our business strategy, enabling us to maintain a high level of manufacturing control resulting in us being one of the lowest cost producers in the embedded control industry.  By owning wafer fabrication facilities and our assembly and test operations, and by employing statistical process control techniques, we have been able to achieve and maintain high production yields.  Direct control over manufacturing resources allows us to shorten our design and production cycles.  This control also allows us to capture a portion of the wafer manufacturing and the assembly and test profit margin. We do outsource a significant portion of our manufacturing requirements to third parties.

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We employ proprietary design and manufacturing processes in developing our embedded control products.  We believe our processes afford us both cost-effective designs in existing and derivative products and greater functionality in new product designs.  While many of our competitors develop and optimize separate processes for their logic and memory product lines, we use a common process technology for both microcontroller and non-volatile memory products.  This allows us to more fully leverage our process research and development costs and to deliver new products to market more rapidly.  Our engineers utilize advanced computer-aided design (CAD) tools and software to perform circuit design, simulation and layout, and our in-house photomask and wafer fabrication facilities enable us to rapidly verify design techniques by processing test wafers quickly and efficiently.

We are committed to continuing our investment in new and enhanced products, including development systems, and in our design and manufacturing process technologies.  We believe these investments are significant factors in maintaining our competitive position.  Our current research and development activities focus on the design of new microcontrollers, digital signal controllers, memory, analog and mixed-signal products, Flash-IP systems, development systems, software and application-specific software libraries.  We are also developing new design and process technologies to achieve further cost reductions and performance improvements in our products.

We market and sell our products worldwide primarily through a network of direct sales personnel and distributors.  Our distributors focus primarily on servicing the product and technical support requirements of a broad base of diverse customers.  We believe that our direct sales personnel combined with our distributors provide an effective means of reaching this broad and diverse customer base.  Our direct sales force focuses primarily on major strategic accounts in three geographical markets: the Americas, Europe and Asia.  We currently maintain sales and support centers in major metropolitan areas in North America, Europe and Asia.  We believe that a strong technical service presence is essential to the continued development of the embedded control market.  Many of our field sales engineers (FSEs), field application engineers (FAEs), and sales management personnel have technical degrees and have been previously employed in an engineering environment.  We believe that the technical knowledge of our sales force is a key competitive advantage in the sale of our products.  The primary mission of our FAE team is to provide technical assistance to strategic accounts and to conduct periodic training sessions for FSEs and distributor sales teams.  FAEs also frequently conduct technical seminars for our customers in major cities around the world, and work closely with our distributors to provide technical assistance and end-user support.

See "Our operating results are impacted by both seasonality and the wide fluctuations of supply and demand in the semiconductor industry," on page 46 for discussion of the impact of seasonality on our business.

Critical Accounting Policies and Estimates

General

Our discussion and analysis of our financial condition and results of operations is based upon our condensed consolidated financial statements, which have been prepared in accordance with accounting principles generally accepted in the U.S.  We review the accounting policies we use in reporting our financial results on a regular basis.  The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent liabilities.  On an ongoing basis, we evaluate our estimates, including those related to revenue recognition, business combinations, share-based compensation, inventories, income taxes, senior and junior subordinated convertible debentures and contingencies.  We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources.  Our results may differ from these estimates due to actual outcomes being different from those on which we based our assumptions.  We review these estimates and judgments on an ongoing basis.  We believe the following critical accounting policies affect our more significant judgments and estimates used in the preparation of our condensed consolidated financial statements.  We also have other policies that we consider key accounting policies, such as our policy regarding revenue recognition to original equipment manufacturers (OEMs); however, we do not believe these policies require us to make estimates or judgments that are as difficult or subjective as our policies described below.

Revenue Recognition - Distributors

Our distributors worldwide generally have broad price protection and product return rights, so we defer revenue recognition until the distributor sells the product to their customer.  Revenue is recognized when the distributor sells the product to an end-user, at which time the sales price becomes fixed or determinable.  Revenue is not recognized upon shipment to our distributors since, due to discounts from list price as well as price protection rights, the sales price is not substantially fixed or determinable at that time.  At the time of shipment to these distributors, we record a trade receivable for the selling

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price as there is a legally enforceable right to payment, relieve inventory for the carrying value of goods shipped since legal title has passed to the distributor, and record the gross margin in deferred income on shipments to distributors on our condensed consolidated balance sheets.

As a result of our acquisition of Micrel, we acquired certain distributor relationships where revenue is recognized upon shipment to the distributors based on contractual terms. In the December 2015 quarter, we intend to change the majority of these distributor contracts to be consistent with those of our other distributors which will result in the deferral of revenue recognition under such contracts until the distributor sells the product to their customer.

Deferred income on shipments to distributors effectively represents the gross margin on the sale to the distributor; however, the amount of gross margin that we recognize in future periods could be less than the deferred margin as a result of credits granted to distributors on specifically identified products and customers to allow the distributors to earn a competitive gross margin on the sale of our products to their end customers and price protection concessions related to market pricing conditions.

We sell the majority of the items in our product catalog to our distributors worldwide at a uniform list price.  However, distributors resell our products to end customers at a very broad range of individually negotiated price points.  The majority of our distributors' resales require a reduction from the original list price paid.  Often, under these circumstances, we remit back to the distributor a portion of their original purchase price after the resale transaction is completed in the form of a credit against the distributors' outstanding accounts receivable balance.  The credits are on a per unit basis and are not given to the distributor until they provide information to us regarding the sale to their end customer.  The price reductions vary significantly based on the customer, product, quantity ordered, geographic location and other factors and discounts to a price less than our cost have historically been rare.  The effect of granting these credits establishes the net selling price to our distributors for the product and results in the net revenue recognized by us when the product is sold by the distributors to their end customers.  Thus, a portion of the "deferred income on shipments to distributors" balance represents the amount of distributors' original purchase price that will be credited back to the distributor in the future.  The wide range and variability of negotiated price concessions granted to distributors does not allow us to accurately estimate the portion of the balance in the deferred income on shipments to distributors account that will be credited back to the distributors.  Therefore, we do not reduce deferred income on shipments to distributors or accounts receivable by anticipated future concessions; rather, price concessions are typically recorded against deferred income on shipments to distributors and accounts receivable when incurred, which is generally at the time the distributor sells the product.  At September 30, 2015, we had approximately $270.8 million of deferred revenue and $90.8 million in deferred cost of sales recognized as $180.0million of deferred income on shipments to distributors.  At March 31, 2015, we had approximately $260.9 million of deferred revenue and $94.8 million in deferred cost of sales recognized as $166.1 million of deferred income on shipments to distributors.  The deferred income on shipments to distributors that will ultimately be recognized in our income statement will be lower than the amount reflected on the balance sheet due to additional price credits to be granted to the distributors when the product is sold to their customers.  These additional price credits historically have resulted in the deferred income approximating the overall gross margins that we recognize in the distribution channel of our business.

Distributor advances, reflected as a reduction of deferred income on shipments to distributors on our condensed consolidated balance sheets, totaled $110.4 million at September 30, 2015 and $116.0 million at March 31, 2015.  On sales to distributors, our payment terms generally require the distributor to settle amounts owed to us for an amount in excess of their ultimate cost.  The sales price to our distributors may be higher than the amount that the distributors will ultimately owe us because distributors often negotiate price reductions after purchasing product from us and such reductions are often significant.  It is our practice to apply these negotiated price discounts to future purchases, requiring the distributor to settle receivable balances, on a current basis, generally within 30 days, for amounts originally invoiced.  This practice has an adverse impact on the working capital of our distributors.  As such, we have entered into agreements with certain distributors whereby we advance cash to the distributors to reduce the distributor's working capital requirements.  These advances are reconciled at least on a quarterly basis and are estimated based on the amount of ending inventory as reported by the distributor multiplied by a negotiated percentage.  Such advances have no impact on our revenue recognition or our condensed consolidated statements of income.  We process discounts taken by distributors against our deferred income on shipments to distributors' balance and true-up the advanced amounts generally after the end of each completed fiscal quarter.  The terms of these advances are set forth in binding legal agreements and are unsecured, bear no interest on unsettled balances and are due upon demand.  The agreements governing these advances can be canceled by us at any time.

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We reduce product pricing through price protection based on market conditions, competitive considerations and other factors.  Price protection is granted to distributors on the inventory they have on hand at the date the price protection is offered.  When we reduce the price of our products, it allows the distributor to claim a credit against its outstanding accounts receivable balances based on the new price of the inventory it has on hand as of the date of the price reduction.  There is no immediate revenue impact from the price protection, as it is reflected as a reduction of the deferred income on shipments to distributors' balance.

Products returned by distributors and subsequently scrapped have historically been immaterial to our consolidated results of operations.  We routinely evaluate the risk of impairment of the deferred cost of sales component of the deferred income on shipments to distributors account.  Because of the historically immaterial amounts of inventory that have been scrapped, and historically rare instances where discounts given to a distributor result in a price less than our cost, we believe the deferred costs are recorded at their approximate carrying value.

Business Combinations

All of our business combinations are accounted for at fair value under the acquisition method of accounting.  Under the acquisition method of accounting, (i) acquisition-related costs, except for those costs incurred to issue debt or equity securities, will be expensed in the period incurred; (ii) non-controlling interests will be valued at fair value at the acquisition date; (iii) in-process research and development will be recorded at fair value as an intangible asset at the acquisition date and amortized once the technology reaches technological feasibility; (iv) restructuring costs associated with a business combination will be expensed subsequent to the acquisition date; and (v) changes in deferred tax asset valuation allowances and income tax uncertainties after the acquisition date will be recognized through income tax expense or directly in contributed capital.  The measurement of the fair value of assets acquired and liabilities assumed requires significant judgment.  The valuation of intangible assets and acquired investments, in particular, requires that we use valuation techniques such as the income approach. The income approach includes the use of a discounted cash flow model, which includes discounted cash flow scenarios and requires the following significant estimates: revenue, expenses, capital spending and other costs, and discount rates based on the respective risks of the cash flows.  The valuation of non-marketable equity investments acquired also takes into account variables such as conditions reflected in the capital markets, recent financing activity by the investees, the investees' capital structure and the terms of the investees' issued interests. Under the acquisition method of accounting, the aggregate amount of consideration we pay for a company is allocated to net tangible assets and intangible assets based on their estimated fair values as of the acquisition date.  The excess of the purchase price over the value of the net tangible assets and intangible assets is recorded to goodwill. On an annual basis, we test goodwill for impairment and, through September 30, 2015, we have never recorded an impairment charge against our goodwill balance.

Share-based Compensation

We measure at fair value and recognize compensation expense for all share-based payment awards, including grants of employee stock options, restricted stock units (RSUs) and employee stock purchase rights, to be recognized in our financial statements based on their respective grant date fair values.  Total share-based compensation during the six months ended September 30, 2015 was $37.1 million, of which $33.1 million was reflected in operating expenses.  Total share-based compensation included in cost of sales during the six months ended September 30, 2015 was $4.1million.  Total share-based compensation included in our inventory balance was $4.8 million at September 30, 2015.

Determining the appropriate fair-value model and calculating the fair value of share-based awards at the date of grant requires judgment.  The fair value of our RSUs is based on the fair market value of our common stock on the date of grant discounted for expected future dividends.  We use the Black-Scholes option pricing model to estimate the fair value of employee stock options and rights to purchase shares under our employee stock purchase plans.  Option pricing models, including the Black-Scholes model, require the use of input assumptions, including expected volatility, expected life, expected dividend rate, and expected risk-free rate of return.  We use a blend of historical and implied volatility based on options freely traded in the open market as we believe this is most reflective of market conditions and a better indicator of expected volatility than using purely historical volatility.  The expected life of the awards is based on historical and other economic data trended into the future.  The risk-free interest rate assumption is based on observed interest rates appropriate for the terms of our awards.  The dividend yield assumption is based on our history and expectation of future dividend payouts.  We estimate the number of share-based awards that will be forfeited due to employee turnover.  Quarterly changes in the estimated forfeiture

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rate can have a significant effect on reported share-based compensation, as the impact on prior period amortization for all unvested awards is recognized in the period the forfeiture estimate is changed.  If the actual forfeiture rate is higher or lower than the estimated forfeiture rate, then an adjustment is made to increase or decrease the estimated forfeiture rate, which will result in a decrease or increase to the expense recognized in our financial statements.  If forfeiture adjustments are made, they would affect our gross margin, research and development expenses, and selling, general and administrative expenses.  The effect of forfeiture adjustments in the second quarter of fiscal 2016 was immaterial.

We evaluate the assumptions used to value our awards on a quarterly basis.  If factors change and we employ different assumptions, share-based compensation expense may differ significantly from what we have recorded in the past.  If there are any modifications or cancellations of the underlying unvested securities, we may be required to accelerate, increase or cancel any remaining unearned share-based compensation expense.  Future share-based compensation expense and unearned share-based compensation will increase to the extent that we grant additional equity awards to employees or we assume unvested equity awards in connection with acquisitions.

Inventories

Inventories are valued at the lower of cost or market using the first-in, first-out method.  We write down our inventory for estimated obsolescence or unmarketable inventory in an amount equal to the difference between the cost of inventory and the estimated market value based upon assumptions about future demand and market conditions.  If actual market conditions are less favorable than those we projected, additional inventory write-downs may be required.  Inventory impairment charges establish a new cost basis for inventory and charges are not subsequently reversed to income even if circumstances later suggest that increased carrying amounts are recoverable.  In estimating our inventory obsolescence, we primarily evaluate estimates of demand over a 12-month period and record impairment charges for inventory on hand in excess of the estimated 12-month demand. Estimates for projected 12-month demand are generally based on the average shipments of the prior three-month period, which are then annualized to adjust for any potential seasonality in our business. The estimated 12-month demand is compared to our most recently developed sales forecast to further reconcile the 12-month demand estimate. Management reviews and adjusts the estimates as appropriate based on specific situations. For example, demand can be adjusted up for new products for which historic sales are not representative of future demand. Alternatively, demand can be adjusted down to the extent any existing products are being replaced or discontinued.

In periods where our production levels are substantially below our normal operating capacity, the reduced production levels of our manufacturing facilities are charged directly to cost of sales.  There was no charge to cost of sales for reduced production levels in the three and six-month periods ended September 30, 2015 or the three-month period ended September 30, 2014. Approximately $0.8 million was charged to cost of sales in the six-month period ended September 30, 2014.

Income Taxes

As part of the process of preparing our condensed consolidated financial statements, we are required to estimate our income taxes in each of the jurisdictions in which we operate.  This process involves estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes.  These differences result in deferred tax assets and liabilities, which are included within our condensed consolidated balance sheets.  We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income within the relevant jurisdiction and to the extent we believe that recovery is not likely, we must establish a valuation allowance.  We have provided valuation allowances for certain of our deferred tax assets, including state net operating loss carryforwards, foreign tax credits and state tax credits, where it is more likely than not that some portion, or all of such assets, will not be realized. At September 30, 2015, the valuation allowances totaled $119.8 million. Should we determine that we would not be able to realize all or part of our net deferred tax asset in the future, an adjustment to the deferred tax asset would be charged to income in the period such determination was made.  At September 30, 2015, our deferred tax asset, net of valuation allowances, was $69.3 million.

Various taxing authorities in the U.S. and other countries in which we do business scrutinize the tax structures employed by businesses.  Companies of our size and complexity are regularly audited by the taxing authorities in the jurisdictions in which they conduct significant operations.  Microchip is currently under IRS audit for fiscal years 2011 and 2012. We recognize liabilities for anticipated tax audit issues in the U.S. and other tax jurisdictions based on our estimate of whether, and the extent to which, additional tax payments are probable.  We believe that we maintain adequate tax reserves to offset any potential tax liabilities that may arise upon these and other pending audits in the U.S. and other countries in which we do business.  If such amounts ultimately prove to be unnecessary, the resulting reversal of such reserves would result in tax benefits being recorded in the period the reserves are no longer deemed necessary.  If such amounts ultimately prove to be less than an ultimate assessment, a future charge to expense would be recorded in the period in which the assessment is determined. 

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Senior and Junior Subordinated Convertible Debentures

We separately account for the liability and equity components of our senior and junior subordinated convertible debentures in a manner that reflects our nonconvertible debt (unsecured debt) borrowing rate when interest cost is recognized.  This results in a bifurcation of a component of the debt, classification of that component in equity and the accretion of the resulting discount on the debt to be recognized as part of interest expense in our condensed consolidated statements of income.  Lastly, we include the dilutive effect of the shares of our common stock issuable upon conversion of our outstanding senior and junior subordinated convertible debentures in our diluted income per share calculation regardless of whether the market price triggers or other contingent conversion features have been met.  We apply the treasury stock method as we have the intent and have adopted an accounting policy to settle the principal amount of the senior and junior subordinated convertible debentures in cash.  This method results in incremental dilutive shares when the average fair value of our common stock for a reporting period exceeds the conversion prices per share which were $67.13 and $24.71 for the senior and junior subordinated convertible debentures, respectively, at September 30, 2015 and adjusts as dividends are recorded in the future.

Contingencies

In the ordinary course of our business, we are involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them.  We also periodically receive notifications from various third parties alleging infringement of patents, intellectual property rights or other matters.  With respect to pending legal actions to which we are a party, although the outcomes of these actions are not generally determinable, we believe that the ultimate resolution of these matters will not have a material adverse effect on our financial position, cash flows or results of operations.  Litigation relating to the semiconductor industry is not uncommon, and we are, and from time to time have been, subject to such litigation.  No assurances can be given with respect to the extent or outcome of any such litigation in the future.

Results of Operations

The following table sets forth certain operational data as a percentage of net sales for the periods indicated:

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net sales	100.0	%	100.0	%	100.0	%	100.0	%
Cost of sales	44.4		43.7		43.3		42.9
Gross profit	55.6		56.3		56.7		57.1
Research and development	17.6		16.3		16.7		16.1
Selling, general and administrative	14.8		13.0		13.7		13.1
Amortization of acquired intangible assets	8.1		8.3		7.3		7.6
Special charges, net	1.3		0.2		0.7		0.1
Operating income	13.8	%	18.5	%	18.3	%	20.2	%

Net Sales

We operate in two industry segments and engage primarily in the design, development, manufacture and sale of semiconductor products as well as the licensing of our SuperFlash and other technologies.  We sell our products to distributors and original equipment manufacturers, referred to as OEMs, in a broad range of markets, perform ongoing credit evaluations of our customers and generally require no collateral.  In certain circumstances, a customer's financial condition may require collateral, and, in such cases, the collateral would be typically provided by letters of credit.

Our net sales for the quarter ended September 30, 2015 were $541.4 million, an increase of 1.4% from the previous quarter's sales of $534.0 million, and a decrease of 0.9% from net sales of $546.2 million in the quarter ended September 30, 2014. Our net sales for the six months ended September 30, 2015 were $1,075.3 million, which was essentially flat to net sales of $1,075.1 million in the six months ended September 30, 2014. The increase in net sales in the quarter ended September 30, 2015 over the previous quarter was due primarily to our acquisition of Micrel which offset weaker general economic and semiconductor industry conditions. The decrease in net sales in the three months ended September 30, 2015 compared to the three months ended September 30, 2014 was due primarily to weaker general economic and semiconductor industry conditions, offset in part by our acquisition of Micrel in the three months ended September 30, 2015. Average selling prices for our

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semiconductor products were down approximately 6% and 3%, respectively, for the three and six-month periods ended September 30, 2015 over the corresponding periods of the previous fiscal year. The number of units of our semiconductor products sold was up approximately 5% and 3%, respectively, for the three and six-month periods ended September 30, 2015 over the corresponding periods of the previous fiscal year. The average selling prices and the unit volumes of our sales are impacted by the mix of our products sold and overall semiconductor market conditions.  Key factors related to the amount of net sales during the three and six-month periods ended September 30, 2015 compared to the three and six-month periods ended September 30, 2014 include:

• our acquisition of Micrel which closed on August 3, 2015;

• global economic conditions in the markets we serve;

• semiconductor industry conditions;

• our new product offerings that have increased our served available market;

• customers' increasing needs for the flexibility offered by our programmable solutions;

• inventory holding patterns of our customers;

• increasing semiconductor content in our customers' products; and

• continued market share gains in the segments of the markets we address.

Net sales by product line for the three and six months ended September 30, 2015 and 2014 were as follows (dollars in thousands):

	Three Months Ended								Six Months Ended
	September 30,								September 30,
	(unaudited)								(unaudited)
	2015		%		2014		%		2015		%		2014		%
Microcontrollers	$	334,255	61.7		$	361,793	66.2		$	682,425	63.4		$	705,554	65.6
Analog, interface and mixed signal products	147,214		27.2		122,584		22.5		274,269		25.5		247,941		23.1
Memory products	30,240		5.6		32,508		6.0		62,013		5.8		65,887		6.1
Technology licensing	23,175		4.3		22,584		4.1		46,438		4.3		43,021		4.0
Other	6,507		1.2		6,774		1.2		10,198		1.0		12,716		1.2
Total sales	$	541,391	100.0	%	$	546,243	100.0	%	$	1,075,343	100.0	%	$	1,075,119	100.0	%

Microcontrollers

Our microcontroller product line represents the largest component of our total net sales.  Microcontrollers and associated application development systems accounted for approximately 61.7% of our net sales for the three-month period ended September 30, 2015 and approximately 63.4% of our net sales for the six-month period ended September 30, 2015 compared to approximately 66.2% of our net sales for the three-month period ended September 30, 2014 and approximately 65.6% of our net sales in the six-month period ended September 30, 2014.

Net sales of our microcontroller products decreased approximately 7.6% in the three-month period ended September 30, 2015 and approximately 3.3% in the six-month period ended September 30, 2015 compared to the three and six-month periods ended September 30, 2014. These sales decreases were driven primarily by weaker general economic and semiconductor industry conditions in the end markets we serve including the consumer, automotive, industrial control, communications and computing markets.

Historically, average selling prices in the semiconductor industry decrease over the life of any particular product.  The overall average selling prices of our microcontroller products have remained relatively constant over time due to the proprietary nature of these products.  We have experienced, and expect to continue to experience, moderate pricing pressure in certain microcontroller product lines, primarily due to competitive conditions. We have in the past been able to, and expect in the future to be able to, moderate average selling price declines in our microcontroller product lines by introducing new products with more features and higher prices.  We may be unable to maintain average selling prices for our microcontroller products as a result of increased pricing pressure in the future, which would adversely affect our operating results.

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Analog, Interface and Mixed Signal Products

Sales of our analog, interface and mixed signal products accounted for approximately 27.2% of our net sales for the three-month period ended September 30, 2015 and approximately 25.5% of our net sales for the six-month period ended September 30, 2015 compared to approximately 22.5% of our net sales for the three-month period ended September 30, 2014 and approximately 23.1% of our net sales for the six-month period ended September 30, 2014.

Net sales of our analog, interface and mixed signal products increased approximately 20.1% in the three-month period ended September 30, 2015 and approximately 10.6% in the six-month period ended September 30, 2015 compared to the three and six-month periods ended September 30, 2014. These sales increases were driven primarily by our acquisition of Micrel and market share gains achieved within the analog, interface and mixed signal market.

Analog, interface and mixed signal products can be proprietary or non-proprietary in nature.  Currently, we consider more than 80% of our analog, interface and mixed signal products to be proprietary in nature, where prices are relatively stable, similar to the pricing stability experienced in our microcontroller products.  The non-proprietary portion of our analog, interface and mixed signal business will experience price fluctuations driven primarily by the current supply and demand for those products.  We may be unable to maintain the average selling prices of our analog, interface and mixed signal products as a result of increased pricing pressure in the future, which would adversely affect our operating results.  We anticipate the proprietary portion of our analog, interface and mixed signal products will increase over time.

Memory Products

Sales of our memory products accounted for approximately 5.6% of our net sales for the three-month period ended September 30, 2015 and approximately 5.8% of our net sales for the six-month period ended September 30, 2015 compared to approximately 6.0% of our net sales for the three-month period ended September 30, 2014 and approximately 6.1% of our net sales for the six-month period ended September 30, 2014.

Net sales of our memory products decreased approximately 7.0% in the three-month period ended September 30, 2015 and approximately 5.9% in the three-month period ended September 30, 2015 compared to the three and six-month periods ended September 30, 2014. The changes in net sales of our memory products over these periods was driven primarily by customer demand conditions within the Serial EEPROM and Flash memory markets.

Memory product pricing has historically been cyclical in nature, with steep price declines followed by periods of relative price stability, driven by changes in industry capacity at different stages of the business cycle.  We have experienced, and expect to continue to experience, varying degrees of competitive pricing pressures in our memory products.  We may be unable to maintain the average selling prices of our memory products as a result of increased pricing pressure in the future, which could adversely affect our operating results.

Technology Licensing

Technology licensing revenue includes a combination of royalties associated with licenses for the use of our SuperFlash and other technologies and fees for engineering services.  Technology licensing accounted for approximately 4.3% of our net sales for the three-month period ended September 30, 2015 and approximately 4.3% of our net sales for the six-month period ended September 30, 2015 compared to approximately 4.1% of our net sales for the three-month period ended September 30, 2014 and approximately 4.0% of our net sales for the six-month period ended September 30, 2014.

Net sales related to our technology licensing increased approximately 2.6% in the three-month period ended September 30, 2015 and approximately 7.9% in the six-month period ended September 30, 2015 compared to the three and six-month periods ended September 30, 2014. Revenue from technology licensing can fluctuate over time based on the production activities of our licensees as well as general economic and semiconductor industry conditions.

Other

Revenue from wafer foundry and assembly and test subcontracting services accounted for approximately 1.2% of our net sales for the three-month period ended September 30, 2015 and approximately 1.0% of our net sales for the six-month period ended September 30, 2015 compared to approximately 1.2% of our net sales for each of the three and six-month periods ended September 30, 2014.

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Distribution

Distributors accounted for approximately 52.4% of our net sales in the three-month period ended September 30, 2015 and approximately 51.7% of our net sales in the three-month period ended September 30, 2014.  Distributors accounted for approximately 52.3% of our net sales in the six-month period ended September 30, 2015 and approximately 52.0% of our net sales in the six-month period ended September 30, 2014. Our distributors focus primarily on servicing the product requirements of a broad base of diverse customers.  We believe that distributors provide an effective means of reaching this broad and diverse customer base.  We believe that customers recognize Microchip for its products and brand name and use distributors as an effective supply channel.

Generally, we do not have long-term agreements with our distributors and we, or our distributors, may terminate our relationships with each other with little or no advance notice.  The loss of, or the disruption in the operations of, one or more of our distributors could reduce our future net sales in a given quarter and could result in an increase in inventory returns.

At September 30, 2015, our distributors maintained 37days ofinventory of our products which was flat compared to the days of inventory at our distributors at March 31, 2015.  However, the September 30, 2015 distributor inventory included two days of inventory from the acquired inventory fair value mark-up associated with our Micrel acquisition. Over the past five fiscal years, the days of inventory maintained by our distributors have fluctuated between 27 days and 47days.  We do not believe that inventory holding patterns at our distributors will materially impact our net sales, due to the fact that we recognize revenue based on sell-through for the vast majority of our distributors.

Sales by Geography

Sales by geography for the three and six months ended September 30, 2015 and 2014 were as follows (dollars in thousands):

	Three Months Ended								Six Months Ended
	September 30,								September 30,
	(unaudited)								(unaudited)
	2015		%		2014		%		2015		%		2014		%
Americas	$	100,229	18.5		$	108,608	19.9		$	204,773	19.0		$	210,812	19.6
Europe	110,889		20.5		110,804		20.3		225,567		21.0		220,202		20.5
Asia	330,273		61.0		326,831		59.8		645,003		60.0		644,105		59.9
Total sales	$	541,391	100.0	%	$	546,243	100.0	%	$	1,075,343	100.0	%	$	1,075,119	100.0	%

Americas sales include sales to customers in the U.S., Canada, Central America and South America. Sales to foreign customers accounted for approximately 85% and 84% of our total net sales in the three and six-month periods ended September 30, 2015, respectively. Sales to foreign customers accounted for approximately 84% of our total net sales in each of the three and six-month periods ended September 30, 2014. Substantially all of our foreign sales are U.S. dollar denominated.  Sales to customers in Asia have generally increased over time due to many of our customers transitioning their manufacturing operations to Asia and growth in demand from the emerging Asian market.  Our sales force in the Americas and Europe supports a significant portion of the design activity for products which are ultimately shipped to Asia.

Gross Profit

Our gross profit was $301.0 million in the three-month period ended September 30, 2015 and $307.5 million in the three-month period ended September 30, 2014. Our gross profit was $610.0 million in the six-month period ended September 30, 2015 and $614.0 million in the six-month period ended September 30, 2014. Gross profit as a percentage of sales was 55.6% in the three-month period ended September 30, 2015 and 56.3% in the three-month period ended September 30, 2014. Gross profit as a percentage of sales was 56.7% in the six-month period ended September 30, 2015 and 57.1% in the six-month period ended September 30, 2014.

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The most significant factors affecting our gross profit percentage in the periods covered by this Form 10-Q were:

• charges of approximately $9.0 million in each of the three and six-month periods ended September 30, 2015 and approximately $12.7 million and $20.2 million in the three and six-month periods ended September 30, 2014, respectively, related to the recognition of acquired inventory at fair value as a result of our acquisitions which increased the value of our acquired inventory and reduced our gross margins;

• for the three and six-month periods ended September 30, 2015, inventory write-downs being higher than the gross margin impact of sales of inventory that was previously written down; and

• fluctuations in our product mix of microcontrollers, analog, interface and mixed signal products, memory products and technology licensing.

Other factors that impacted our gross profit percentage in the periods covered by this Form 10-Q include:

• continual cost reductions in wafer fabrication and assembly and test manufacturing, such as new manufacturing technologies and more efficient manufacturing techniques; and

• lower depreciation as a percentage of cost of sales. 

We adjust our wafer fabrication and assembly and test capacity utilization as required to respond to actual and anticipated business and industry-related conditions. During the three and six-month periods ended September 30, 2015, and the three-month period ended September 30, 2014, we operated at normal capacity levels, which we typically consider to be 90% to 95% of the actual capacity of our installed equipment, in our wafer fabrication facilities. During the six-month period ended September 30, 2014, we operated at slightly below normal capacity levels in our wafer fabrication facilities in response to uncertain global economic conditions and our inventory position. When production levels are below normal capacity, we charge cost of sales for the unabsorbed capacity. Unabsorbed capacity charges related to our wafer fabs were approximately $0.8 million during the six-month period ended September 30, 2014. We operated at normal capacity levels in our Thailand assembly and test facilities during each of the three and six-month periods ended September 30, 2015 and 2014.

The process technologies utilized in our wafer fabs impact our gross margins.  Fab 2 currently utilizes various manufacturing process technologies, but predominantly utilizes our 0.5 to 1.0 micron processes.  Fab 4 predominantly utilizes our 0.22 to 0.5 micron processes.  We continue to transition products to more advanced process technologies to reduce future manufacturing costs.  Substantially all of our production has been on 8-inch wafers during the periods covered by this report.

Our overall inventory levels were $363.8million at September 30, 2015, compared to $279.5 million at March 31, 2015.  We maintained 138 days of inventory on our balance sheet at September 30, 2015 compared to 111 days of inventory at March 31, 2015.  The primary reason for the increase in our inventory levels and days of inventory at September 30, 2015 compared to March 31, 2015 is an additional $63.0 million of inventory from our acquisition of Micrel, including approximately $37.2 million of acquired inventory fair value mark-up. We expect our inventory levels in the December 2015 quarter to be flat to up 6 days, excluding the impact from the sell through of acquired inventory fair value mark-up, over those levels at September 30, 2015. We believe our existing level of inventory will allow us to maintain competitive lead times and provide strong delivery performance to our customers.

We anticipate that our gross margins will fluctuate over time, driven primarily by capacity utilization levels, the overall mix of microcontroller products, analog, interface and mixed signal products, memory products and technology licensing revenue and the percentage of net sales of each of these products in a particular quarter, as well as manufacturing yields, fixed cost absorption, and competitive and economic conditions in the markets we serve.

During the three months ended September 30, 2015, approximately 53% of our assembly requirements were performed in our Thailand facilities compared to approximately 55% during the three months ended September 30, 2014.  The percentage of our assembly work that is performed internally fluctuates over time based on supply and demand conditions in the semiconductor industry, our internal capacity capabilities and our acquisition activities.  Third-party contractors located in Asia perform the balance of our assembly operations.  During the three months ended September 30, 2015, approximately 82% of our test requirements were performed in our Thailand facilities compared to approximately 88% during the three months ended September 30, 2014. We believe that the assembly and test operations performed at our Thailand facility provide us with significant cost savings compared to contractor assembly and test costs, as well as increased control over these portions of the manufacturing process.

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We rely on outside wafer foundries for a significant portion of our wafer fabrication requirements. In each of the three and six months ended September 30, 2015, approximately 40% of our net sales came from products that were produced at outside wafer foundries. In the three and six months ended September 30, 2014, approximately 41% and 40%, respectively, of our net sales came from products that were produced at outside wafer foundries.

Our use of third parties involves some reduction in our level of control over the portions of our business that we subcontract.  While we review the quality, delivery and cost performance of our third-party contractors, our future operating results could suffer if any third-party contractor is unable to maintain manufacturing yields, assembly and test yields and costs at approximately their current levels.

Research and Development (R&D)

R&D expenses for the three months ended September 30, 2015 were $95.3 million, or 17.6% of net sales, compared to $88.8 million, or 16.3% of net sales, for the three months ended September 30, 2014.  R&D expenses for the six months ended September 30, 2015 were $179.9 million, or 16.7% of net sales, compared to $173.2 million, or 16.1% of net sales, for the six months ended September 30, 2014. We are committed to investing in new and enhanced products, including development systems software, and in our design and manufacturing process technologies.  We believe these investments are significant factors in maintaining our competitive position.  R&D costs are expensed as incurred.  Assets purchased to support our ongoing research and development activities are capitalized when related to products which have achieved technological feasibility or that have alternative future uses and are amortized over their expected useful lives.  R&D expenses include labor, depreciation, masks, prototype wafers, and expenses for the development of process technologies, new packages, and software to support new products and design environments.

R&D expenses increased $6.4 million, or 7.3%, for the three months ended September 30, 2015 over the same period last year.  The primary reasons for the increase in R&D costs over the same period last year were additional costs from our acquisition of Micrel partially offset by lower bonus costs. R&D expenses increased $6.8 million, or 3.9%, for the six months ended September 30, 2015 over the same period last year.  The primary reasons for the increase in R&D costs over the same period last year were additional costs from our acquisitions of Micrel and ISSC as well as higher headcount costs partially offset by lower bonus costs.

R&D expenses fluctuate over time, primarily due to revenue and operating expense investment levels.

Selling, General and Administrative

Selling, general and administrative expenses for the three months ended September 30, 2015 were $80.3million, or 14.8% of net sales, compared to $71.1 million, or 13.0% of net sales, for the three months ended September 30, 2014.  Selling, general and administrative expenses for the six months ended September 30, 2015 were $147.1million, or 13.7% of net sales, compared to $140.4 million, or 13.1% of net sales, for the six months ended September 30, 2014.  Selling, general and administrative expenses include salary expenses related to field sales, marketing and administrative personnel, advertising and promotional expenditures and legal expenses.  Selling, general and administrative expenses also include costs related to our direct sales force and field applications engineers who work in sales offices worldwide to stimulate demand by assisting customers in the selection and use of our products.

Selling, general and administrative expenses increased $9.1 million, or 12.9%, for the three months ended September 30, 2015 over the same period last year.  Selling, general and administrative expenses increased $6.7 million, or 4.8%, for the six months ended September 30, 2015 over the same period last year. The primary reasons for the increases in selling, general and administrative costs over these periods were additional costs from our acquisition of Micrel partially offset by lower bonus costs.

Selling, general and administrative expenses fluctuate over time, primarily due to revenue and operating expense investment levels.

Amortization of Acquired Intangible Assets

Amortization of acquired intangible assets for the three and six months ended September 30, 2015 was $43.8 million and $78.5 million, respectively. Amortization of acquired intangible assets for the three and six months ended September 30, 2014 was $45.4 million and $82.1 million, respectively. The primary reasons for the decreases in acquired intangible asset amortization for the three and six months ended September 30, 2015 compared to the same periods last year were decreased

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amortization from our customer-related intangible assets from our acquisitions of Standard Microsystems Corporation partially offset by increased amortization from our acquisitions of Micrel and ISSC.

Special Charges

We incurred special charges related to severance, office closing and other costs associated with our acquisition activity of $6.6 million and $8.2 million for the three and six months ended September 30, 2015, respectively, and $0.8 million and $1.1 million for the three and six months ended September 30, 2014, respectively.

Other Income (Expense)

Interest income in the three and six months ended September 30, 2015 was $6.4 million, and $11.9 million, respectively. Interest income in the three and six months ended September 30, 2014 was $4.5 million, and $9.3 million, respectively. The primary reasons for the increases in interest income in the three and six months ended September 30, 2015 compared to the same periods last year relate to higher yields on short-term cash investments and higher invested cash balances.

Interest expense in the three and six months ended September 30, 2015 was $25.6 million, and $49.7 million, respectively.   Interest expense in the three and six months ended September 30, 2014 was $14.0 million, and $27.7 million, respectively. The primary reasons for the increases in interest expense in the three and six months ended September 30, 2015 compared to the same periods last year relate to non-cash interest expense from the amortization on the debt discount of our 1.625% senior subordinated convertible debentures and interest expense related to the 1.625% coupon on such debentures which were issued in February 2015. The increase in interest expense was partially offset by lower interest expense under our credit facility and lower interest expense on our 2.125% junior subordinated debentures as a result of our purchase of 50% of such outstanding debentures in the March 2015 quarter.

Other expense, net in the three months ended September 30, 2015 was $1.7 million, and other income, net in the six months ended September 30, 2015 was $15.3 million compared to other expense, net of $1.1 million in the three and six months ended September 30, 2014. The primary reasons for the change in other income (expense), net in the six months ended September 30, 2015 compared to the same period last year relates to realized gains of $14.0 million from the sale of marketable equity and debt securities and a gain of $2.2 million on the sale of an equity method investment.

Provision for Income Taxes

Our provision for income taxes reflects tax on foreign earnings and federal and state tax on U.S. earnings.  We had an effective tax rate benefit of 12.6% for the six-month period ended September 30, 2015 and an effective tax rate of 8.0% for the six-month period ended September 30, 2014.  Our effective tax rate for the six-month period ended September 30, 2015 is lower compared to the prior year primarily due to favorable tax impacts from the Micrel purchase accounting adjustments. Our effective tax rate is lower than statutory rates in the U.S. due primarily to our mix of earnings in foreign jurisdictions with lower tax rates.

Various taxing authorities in the U.S. and other countries in which we do business are increasing their scrutiny of the tax structures employed by businesses.  Companies of our size and complexity are regularly audited by the taxing authorities in the jurisdictions in which they conduct significant operations.  For U.S. federal, and in general for U.S. state tax returns, our fiscal 2011 and later tax returns remain open for examination by the taxing authorities. Microchip is currently under IRS audit for fiscal years 2011 and 2012. We recognize liabilities for anticipated tax audit issues in the U.S. and other tax jurisdictions based on our estimate of whether, and the extent to which, additional tax payments are probable.  We believe that we maintain adequate tax reserves to offset any potential tax liabilities that may arise upon these and other pending audits in the U.S. and other countries in which we do business.  If such amounts ultimately prove to be unnecessary, the resulting reversal of such reserves would result in tax benefits being recorded in the period the reserves are no longer deemed necessary.  If such amounts ultimately prove to be less than any final assessment, a future charge to expense would be recorded in the period in which the assessment is determined.

Our Thailand manufacturing operations currently benefit from numerous tax holidays that have been granted to us by the Thailand government based on our investments in property, plant and equipment in Thailand.  Our tax holiday periods in Thailand expire at various times in the future.  Any expiration of our tax holidays are expected to have a minimal impact on our overall tax expense due to other tax holidays and an increase in income in other taxing jurisdictions with lower statutory rates.

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Liquidity and Capital Resources

We had $2,586.5 million in cash, cash equivalents and short-term and long-term investments at September 30, 2015, an increase of $244.3 million from the March 31, 2015 balance.  The increase in cash, cash equivalents and short-term and long-term investments over this time period is primarily attributable to cash generated by operating activities and increases in borrowings under our credit facility offset in part by our dividend payments of $145.0 million and $343.9 million of cash used for our acquisition of Micrel, net of cash acquired from Micrel.

Net cash provided by operating activities was $331.4 million in the six months ended September 30, 2015 compared to $357.8 million in the six months ended September 30, 2014.  The decrease in net cash provided from operating activities was primarily due to changes in our operating assets and liabilities.

During the six months ended September 30, 2015, net cash used in investing activities was $727.9 million compared to net cash used in investing activities of $520.2 million in the six months ended September 30, 2014.  The increase in net cash used in investing activities was due primarily to $343.9 million of cash consideration, net of $99.2 million of cash and cash equivalents acquired, used to finance our acquisition of Micrel in August 2015, a decrease in cash from our purchases, sales and maturities of available-for-sale securities in the six months ended September 30, 2015 compared to the same period last year,offset in part by $375.4 million of cash consideration, net of $14.8 million of cash and cash equivalents acquired, used to finance our acquisition of Supertex in April 2014 and $252.5 million of cash consideration, net of $15.1 million of cash and cash equivalents acquired, used to finance our acquisition of ISSC in July 2014.

Our level of capital expenditures varies from time to time as a result of actual and anticipated business conditions. Capital expenditures in the six months ended September 30, 2015 were $63.6 million compared to $83.4 million in the six months ended September 30, 2014.  Capital expenditures were primarily for the expansion of production capacity and the addition of research and development equipment.  We currently intend to spend approximately $125 million during the next twelve months to invest in equipment and facilities to maintain, and selectively increase capacity to meet our currently anticipated needs.

We expect to finance our capital expenditures through our existing cash balances and cash flows from operations.  We believe that the capital expenditures anticipated to be incurred over the next twelve months will provide sufficient manufacturing capacity to meet our currently anticipated needs.

Net cash provided by financing activities was $327.8 million in the six months ended September 30, 2015 compared to net cash provided by financing activities of $177.4 million in the six months ended September 30, 2014.  We made payments on our borrowings under our credit agreement of $190.0 million and $308.5 million during the six months ended September 30, 2015 and 2014, respectively. Cash received on borrowings under our credit agreement totaled $1,024.5 million and $632.9 million during the six months ended September 30, 2015 and 2014, respectively. Cash expended for the repurchase of shares of our common stock was $363.8 million during the six months ended September 30, 2015. No amounts were expended during the six months ended September 30, 2014 for the repurchase of our common stock. We paid cash dividends to our stockholders of $145.0 million in the six months ended September 30, 2015 and $142.6 million in the six months ended September 30, 2014. Proceeds from the exercise of stock options and employee purchases under our employee stock purchase plans were $13.5 million in the six months ended September 30, 2015 and $14.0 million in the six months ended September 30, 2014.

In February 2015, we amended our credit agreement with certain lenders.  As a result of such amendment, the revolving credit facility portion of the agreement was increased from $1,650.0 million to $2,555.0 million and the $350.0 million term loan portion of the agreement was removed. The increase option permitting us, subject to certain requirements, to arrange with existing lenders and/or new lenders to provide up to an aggregate of $300 million in additional commitments, was also adjusted to $249 million. Proceeds of loans made under the credit agreement may be used for working capital and general corporate purposes. At September 30, 2015, $1,296.5 million of borrowings were outstanding under the credit agreement. See Note 18 of the notes to condensed consolidated financial statements for more information regarding our credit agreement.

Our total cash, cash equivalents, short-term investments and long-term investments held by our foreign subsidiaries was $2,546.3 million at September 30, 2015 and $2,322.4 million at March 31, 2015. Under current tax laws and regulations, if accumulated earnings and profits held by our foreign subsidiaries that U.S. taxes had not previously been provided for were to be distributed to the U.S., in the form of dividends or otherwise, we would be subject to additional U.S. income taxes and foreign withholding taxes. Our balance of cash, cash equivalents, short-term investments and long-term investments available for our U.S. operations as of September 30, 2015 and March 31, 2015 was approximately $40.1 million and $19.8 million,

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respectively. We utilize a variety of tax planning and financing strategies (including borrowings under our credit agreement) with the objective of having our worldwide cash available in the locations in which it is needed. We consider our offshore earnings to be permanently reinvested offshore. However, we could determine to repatriate some of our offshore earnings in future periods to fund stockholder dividends, share repurchases, acquisitions or other corporate activities.  We expect that a significant portion of our future cash generation will be in our foreign subsidiaries.

In March 2015, we entered into ten-year fixed-to-floating interest rate swap agreements on a portion of our fixed-rate 1.625% senior subordinated convertible debentures. The interest rate swap agreements are designated as fair value hedges. We pay variable interest equal to the three-month LIBOR minus 53.6 basis points and we receive a fixed interest rate of 1.625%. The gross notional amount of these contracts outstanding at September 30, 2015 was $431.3 million, representing 25% of the principal amount of our senior subordinated convertible debentures. As a result of changes in the benchmark interest rate, the fair value of these derivative instruments increased by approximately $2.0 million during the six months ended September 30, 2015 compared to March 31, 2015.

We enter into derivative transactions from time to time in an attempt to reduce our exposure to currency rate fluctuations.  Although none of the countries in which we conduct significant foreign operations has had a highly inflationary economy in the last five years, there is no assurance that inflation rates or fluctuations in foreign currency rates in countries where we conduct operations will not adversely affect our operating results in the future.  At September 30, 2015, we had no foreign currency forward contracts outstanding.

On August 3, 2015, we acquired Micrel for $14.00 per share. Under the terms of the merger agreement, Micrel shareholders were able to elect to receive the $14.00 per share purchase price in either cash or shares of Microchip common stock. Based on the results of the shareholder elections, we paid an aggregate of approximately $430 million in cash and issued an aggregate of 8,626,795shares of our common stock to Micrel shareholders. We financed the cash portion of the purchase price with borrowings under our existing credit agreement.

In May 2015, our Board of Directors authorized the repurchase of up to 20 million shares of our common stock in the open market or in privately negotiated transactions.  As of September 30, 2015, we had repurchased 8,626,795 shares under this authorization for approximately $363.8 million.  There is no expiration date associated with this program. 

As of September 30, 2015, we held approximately 24.4 million shares of our common stock as treasury shares.

On October 28, 2002, we announced that our Board of Directors had approved and instituted a quarterly cash dividend on our common stock.  A quarterly dividend of $0.3580 per share was paid on August 3, 2015 in the aggregate amount of $72.7 million. A quarterly dividend of $0.3585 per share was declared on November 4, 2015 and will be paid on December 4, 2015 to stockholders of record as of November 20, 2015. We expect the aggregate December cash dividend to be approximately $72.9 million. Our Board is free to change our dividend practices at any time and to increase or decrease the dividend paid, or not to pay a dividend on our common stock on the basis of our results of operations, financial condition, cash requirements and future prospects, and other factors deemed relevant by our Board.  Our current intent is to provide for ongoing quarterly cash dividends depending upon market conditions, our results of operations, and potential changes in tax laws.

We believe that our existing sources of liquidity combined with cash generated from operations and borrowings under our credit agreement will be sufficient to meet our currently anticipated cash requirements for at least the next 12 months. However, the semiconductor industry is capital intensive.  In order to remain competitive, we must constantly evaluate the need to make significant investments in capital equipment for both production and research and development.  We may increase our borrowings under our credit agreement or seek additional equity or debt financing from time to time to maintain or expand our wafer fabrication and product assembly and test facilities, for cash dividends, for share repurchases or for acquisitions or other purposes.  The timing and amount of any such financing requirements will depend on a number of factors, including our level of dividend payments, changes in tax laws and regulations regarding the repatriation of offshore cash, demand for our products, changes in industry conditions, product mix, competitive factors and our ability to identify suitable acquisition candidates.  There can be no assurance that such financing will be available on acceptable terms, and any additional equity financing would result in incremental ownership dilution to our existing stockholders.

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Contractual Obligations

There have not been any material changes in our contractual obligations from what we disclosed in our Annual Report on Form 10-K for the fiscal year ended March 31, 2015.

Off-Balance Sheet Arrangements

As of September 30, 2015, we are not involved in any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K. 

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Item 3.  Quantitative and Qualitative Disclosures About Market Risk

Our investments are intended to establish a high-quality portfolio that preserves principal, meets liquidity needs, avoids inappropriate concentrations, and delivers an appropriate yield in relationship to our investment guidelines and market conditions.  Our investment portfolio, consisting of fixed income securities, money market funds, cash deposits, and marketable securities that we hold on an available-for-sale basis, was $2,586.5million as of September 30, 2015 compared to $2,342.2 million as of March 31, 2015. The available-for-sale debt securities, like all fixed income instruments, are subject to interest rate risk and will decline in value if market interest rates increase.  We have the ability to hold our fixed income investments until maturity and, therefore, we would not expect to recognize any material adverse impact in income or cash flows if market interest rates increase. The following table provides information about our available-for-sale securities that are sensitive to changes in interest rates. We have aggregated our available-for-sale securities for presentation purposes since they are all very similar in nature. The amounts for fiscal 2016 refer to the remaining six months of the current fiscal year (dollars in thousands):

	Financial instruments maturing during the fiscal year ended March 31,
	2016			2017			2018			2019			2020			Thereafter
Available-for-sale securities	$	107,893		$	547,463		$	438,897		$	753,807		$	40,522		$	152,604
Weighted-average yield rate	0.93		%	1.08		%	1.37		%	1.31		%	1.75		%	1.64		%

We are exposed to interest rate risk related to our fixed-to-floating interest rate derivative instruments.  Based on sensitivity analyses performed on our financial position as of September 30, 2015, a hypothetical increase in benchmark interest rates of up to 1%, would have resulted in a decrease in the fair value of these instruments by $40.1 million.  A hypothetical decrease in benchmark interest rates of up to 1%, would have resulted in an increase in the fair value of these instruments by $36.9 million.  Any gains and losses on the fair value of these derivative instruments would generally be offset by gains and losses on the hedged item.

See Note 1 to our consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended March 31, 2015 for additional information on our investments and the use of derivative instruments.

Item 4.  Controls and Procedures

Evaluation of Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, as required by paragraph (b) of Rule 13a-15 or Rule 15d-15 under the Securities Exchange Act of 1934, as amended, we evaluated under the supervision of our Chief Executive Officer and our Chief Financial Officer, the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) of the Securities Exchange Act of 1934, as amended).  Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our disclosure controls and procedures are effective to ensure that information we are required to disclose in reports that we file or submit under the Securities Exchange Act of 1934 (i) is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms, and (ii) is accumulated and communicated to our management, including our Chief Executive Officer and our Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.  Our disclosure controls and procedures are designed to provide reasonable assurance that such information is accumulated and communicated to our management.  Our disclosure controls and procedures include components of our internal control over financial reporting. Management's assessment of the effectiveness of our internal control over financial reporting is expressed at the level of reasonable assurance because a control system, no matter how well designed and operated, can provide only reasonable, but not absolute, assurance that the control system's objectives will be met.

Changes in Internal Control over Financial Reporting

During the three months ended September 30, 2015, there was no change in our internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Rule 13a-15 or Rule 15d-15 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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PART II.  OTHER INFORMATION

Item 1. Legal Proceedings

In the ordinary course of our business, we are involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them.  We also periodically receive notifications from various third parties alleging infringement of patents, intellectual property rights or other matters.  With respect to pending legal actions to which we are a party or of which any of our property is subject, although the outcomes of these actions are not generally determinable, we believe that the ultimate resolution of these matters will not have a material adverse effect on our financial position, cash flows or results of operations.  Litigation relating to the semiconductor industry is not uncommon, and we are, and from time to time have been, subject to such litigation.  No assurances can be given with respect to the extent or outcome of any such litigation in the future.

Item 1A. Risk Factors

When evaluating Microchip and its business, you should give careful consideration to the factors listed below, in addition to the information provided elsewhere in this Form 10-Q and in other documents that we file with the Securities and Exchange Commission.

Our operating results are impacted by global economic conditions and may fluctuate in the future due to a number of factors that could reduce our net sales and profitability.

Our operating results are affected by a wide variety of factors that could reduce our net sales and profitability, many of which are beyond our control. Some of the factors that may affect our operating results include:

• general economic, industry or political conditions in the U.S. or internationally;

• changes in demand or market acceptance of our products and products of our customers, and market fluctuations in the industries into which such products are sold;

• changes in utilization of our manufacturing capacity and fluctuations in manufacturing yields;

• changes or fluctuations in customer order patterns and seasonality;

• our ability to secure sufficient wafer foundry, assembly and testing capacity;

• our ability to ramp our factory capacity to meet customer demand;

• the mix of inventory we hold and our ability to satisfy orders from our inventory;

• levels of inventories held by our customers;

• risk of excess and obsolete inventories;

• our ability to realize the expected benefits of our acquisitions;

• changes in tax regulations and policies in the U.S. and other countries in which we do business;

• competitive developments including pricing pressures;

• unauthorized copying of our products resulting in pricing pressure and loss of sales;

• availability of raw materials and equipment;

• our ability to successfully transition products to more advanced process technologies to reduce manufacturing costs;

• the level of orders that are received and can be shipped in a quarter;

• the level of sell-through of our products through distribution;

• fluctuations in our mix of product sales;

• announcements of significant acquisitions by us or our competitors;

• disruptions in our business or our customers' businesses due to terrorist activity, armed conflict, war, worldwide oil prices and supply, public health concerns, natural disasters or disruptions in the transportation system;

• constrained availability from other electronic suppliers impacting our customers' ability to ship their products, which in turn may adversely impact our sales to those customers;

• costs and outcomes of any current or future tax audits or any litigation involving intellectual property, customers or other issues;

• fluctuations in commodity prices; and

• property damage or other losses, whether or not covered by insurance.

We believe that period-to-period comparisons of our operating results are not necessarily meaningful and that you should not rely upon any such comparisons as indications of our future performance. In future periods, our operating results may fall below our public guidance or the expectations of public market analysts and investors, which would likely have a

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negative effect on the price of our common stock. Adverse global economic conditions, the subsequent economic recovery and uncertainty surrounding the strength and duration of such recovery have caused our operating results to fluctuate significantly and make comparability between periods less meaningful.

Our operating results will suffer if we ineffectively utilize our manufacturing capacity or fail to maintain manufacturing yields.

The manufacture and assembly of integrated circuits, particularly non-volatile, erasable CMOS memory and logic devices such as those that we produce, are complex processes. These processes are sensitive to a wide variety of factors, including the level of contaminants in the manufacturing environment, impurities in the materials used, the performance of our wafer fabrication and assembly and test personnel and equipment, and other quality issues. As is typical in the semiconductor industry, we have from time to time experienced lower than anticipated manufacturing yields. Our operating results will suffer if we are unable to maintain yields at approximately the current levels. This could include delays in the recognition of revenue, loss of revenue or future orders, and customer-imposed penalties for our failure to meet contractual shipment deadlines. Our operating results are also adversely affected when we operate at less than optimal capacity. For example, in the third quarter of fiscal 2012, we reduced wafer starts in both Fab 2 and Fab 4 to help control inventory balances in response to a slowdown in global economic conditions. We continued with the reduced level of wafer starts through the first quarter of fiscal 2013. These actions had a negative impact on our gross profit. We further reduced the wafer starts in our fabs in late September 2012 and again during the quarter ended December 31, 2012 which continued to negatively impact our gross profit through the March 2013 quarter. We increased wafer starts modestly throughout fiscal 2014 and fiscal 2015. Although we operated at normal capacity levels during the last three quarters of fiscal 2015 and through the first two quarters of fiscal 2016, there can be no assurance that such production levels will be maintained in future periods.

We are dependent on orders that are received and shipped in the same quarter and therefore have limited visibility to future product shipments.

Our net sales in any given quarter depend upon a combination of shipments from backlog, and customer orders that are both received and shipped in that same quarter, which we refer to as turns orders. We measure turns orders at the beginning of a quarter based on the orders needed to meet the shipment targets that we set entering the quarter. Historically, we have relied on our ability to respond quickly to customer orders as part of our competitive strategy, resulting in customers placing orders with relatively short delivery schedules. Shorter lead times generally mean that turns orders as a percentage of our business are relatively high in any particular quarter and reduce our backlog visibility on future product shipments. Turns orders correlate to overall semiconductor industry conditions and product lead times. Because turns orders are difficult to predict, varying levels of turns orders make it more difficult to forecast net sales. As a significant portion of our products are manufactured at foundries, foundry lead times may affect our ability to satisfy certain turns orders. If we do not achieve a sufficient level of turns orders in a particular quarter relative to our revenue targets, our revenue and operating results will likely suffer.

Intense competition in the markets we serve may lead to pricing pressures, reduced sales of our products or reduced market share.

The semiconductor industry is intensely competitive and has been characterized by price erosion and rapid technological change. We compete with major domestic and international semiconductor companies, many of which have greater market recognition and substantially greater financial, technical, marketing, distribution and other resources than we do. We may be unable to compete successfully in the future, which could harm our business. Our ability to compete successfully depends on a number of factors both within and outside our control, including, but not limited to:

• the quality, performance, reliability, features, ease of use, pricing and diversity of our products;

• our success in designing and manufacturing new products including those implementing new technologies;

• the rate at which customers incorporate our products into their own applications and the success of such applications;

• the rate at which the markets that we serve redesign and change their own products;

• changes in demand in the markets that we serve and the overall rate of growth or contraction of such markets, including but not limited to the automotive, personal computing and consumer electronics markets;

• product introductions by our competitors;

• the number, nature and success of our competitors in a given market;

• our ability to obtain adequate foundry and assembly and test capacity and supplies of raw materials and other supplies at acceptable prices;

• our ability to protect our products and processes by effective utilization of intellectual property rights;

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• our ability to remain price competitive against companies that have copied our proprietary product lines, especially in countries where intellectual property rights protection is difficult to achieve and maintain;

• our ability to address the needs of our customers; and

• general market and economic conditions.

Historically, average selling prices in the semiconductor industry decrease over the life of any particular product. The overall average selling prices of our microcontroller and proprietary analog, interface and mixed signal products have remained relatively constant, while average selling prices of our memory and non-proprietary analog, interface and mixed signal products have declined over time.

We have experienced, and expect to continue to experience, modest pricing declines in certain of our more mature proprietary product lines, primarily due to competitive conditions. We have been able to moderate average selling price declines in many of our proprietary product lines by continuing to introduce new products with more features and higher prices. However, there can be no assurance that we will be able to do so in the future. We have experienced in the past, and expect to continue to experience in the future, varying degrees of competitive pricing pressures in our memory and non-proprietary analog, interface and mixed signal products. We may be unable to maintain average selling prices for our products as a result of increased pricing pressure in the future, which could adversely impact our operating results.

We are dependent on wafer foundries and other contractors to perform key manufacturing functions for us, and our licensees of our SuperFlash and other technologies also rely on foundries and other contractors.

We rely on outside wafer foundries for a significant portion of our wafer fabrication needs. Specifically, during the first six months of fiscal 2016, approximately 40% of our net sales came from products that were produced at outside wafer foundries. During fiscal 2015, approximately 39% of our net sales came from products that were produced at outside wafer foundries. We also use several contractors located in Asia for a portion of the assembly and testing of our products. Our reliance on third party contractors and foundries increased as a result of our acquisitions of SMSC in August 2012, Supertex in April 2014 and ISSC in July 2014. The disruption or termination of any of our contractors could harm our business and operating results.

Our use of third parties somewhat reduces our control over the subcontracted portions of our business. Our future operating results could suffer if any contractor were to experience financial, operational or production difficulties or situations when demand exceeds capacity, or if they were unable to maintain manufacturing yields, assembly and test yields and costs at approximately their current levels, or if the countries in which such contractors are located were to experience political upheaval or infrastructure disruption. If these third parties are unable or unwilling to timely deliver products or services conforming to our quality standards, we may not be able to qualify additional manufacturing sources for our products in a timely manner on terms favorable to us, or at all. Additionally, these subcontractors could abandon fabrication processes that are important to us, or fail to adopt advanced manufacturing technologies that we desire to control costs. In any such event, we could experience an interruption in production, an increase in manufacturing and production costs or a decline in product reliability, and our business and operating results could be adversely affected. Further, our use of subcontractors increases the risks of potential misappropriation of our intellectual property.

Certain of our SuperFlash and other technology licensees also rely on outside wafer foundries for wafer fabrication services. If our licensees were to experience any disruption in supply from outside wafer foundries, this would reduce the revenue we receive in our technology licensing business and would harm our operating results.

Our operating results are impacted by both seasonality and the wide fluctuations of supply and demand in the semiconductor industry.

The semiconductor industry is characterized by seasonality and wide fluctuations of supply and demand. Since a significant portion of our revenue is from consumer markets and international sales, our business is subject to seasonally lower revenues in the third and fourth quarters of our fiscal year. However, broad fluctuations in our overall business, changes in semiconductor industry and global economic conditions and our acquisition activity can have a more significant impact on our results than seasonality. As a result, in periods when these broad fluctuations, changes in business conditions or acquisitions occur, it is difficult to assess the impact of seasonal factors on our business. The semiconductor industry has also experienced significant economic downturns, characterized by diminished product demand and production over-capacity. We have sought to reduce our exposure to this industry cyclically by selling proprietary products, that cannot be easily or quickly replaced, to a geographically diverse customer base across a broad range of market segments. However, we have experienced substantial period-to-period fluctuations in operating results and expect, in the future, to experience period-to-period fluctuations in operating results due to general industry or economic conditions.

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Our business is dependent on selling through distributors.

Sales through distributors accounted for approximately 52% of our net sales in the first six months of fiscal 2016 and approximately 51% of our net sales in fiscal 2015. We do not have long-term agreements with our distributors, and we and our distributors may each terminate our relationship with little or no advance notice.

Any future adverse conditions in the U.S. or global economies or in the U.S. or global credit markets could materially impact the operations of our distributors. Any deterioration in the financial condition of our distributors or any disruption in the operations of our distributors could adversely impact the flow of our products to our end customers and adversely impact our results of operation. In addition, during an industry or economic downturn, it is possible there will be an oversupply of products and a decrease in sell-through of our products by our distributors which could reduce our net sales in a given period and result in an increase in inventory returns. Violations of the Foreign Corrupt Practices Act, or similar laws, by our distributors or other channel partners could have a material adverse impact on our business.

Our success depends on our ability to introduce new products on a timely basis.

Our future operating results depend on our ability to develop and timely introduce new products that compete effectively on the basis of price and performance and which address customer requirements. The success of our new product introductions depends on various factors, including, but not limited to:

• proper new product selection;

• timely completion and introduction of new product designs;

• procurement of licenses for intellectual property rights from third parties under commercially reasonable terms;

• timely filing and protection of intellectual property rights for new product designs;

• availability of development and support tools and collateral literature that make complex new products easy for engineers to understand and use; and

• market acceptance of our customers' end products.

Because our products are complex, we have experienced delays from time to time in completing new product development. In addition, our new products may not receive or maintain substantial market acceptance.  We may be unable to timely design, develop and introduce competitive products, which could adversely impact our future operating results.

Our success also depends upon our ability to develop and implement new design and process technologies. Semiconductor design and process technologies are subject to rapid technological change and require significant R&D expenditures. We and other companies in the industry have, from time to time, experienced difficulties in effecting transitions to advanced process technologies and, consequently, have suffered reduced manufacturing yields or delays in product deliveries. Our future operating results could be adversely affected if any transition to future process technologies is substantially delayed or inefficiently implemented.

Our technology licensing business exposes us to various risks.

Our technology licensing business is based on our SuperFlash and other technologies. The success of our licensing business depends on the continued market acceptance of these technologies and on our ability to further develop and enhance such technologies and to introduce new technologies in the future. To be successful, any such technology must be able to be repeatably implemented by licensees, provide satisfactory yield rates, address licensee and customer requirements, and perform competitively. The success of our technology licensing business depends on various other factors, including, but not limited to:

• proper identification of licensee requirements;

• timely development and introduction of new or enhanced technology;

• our ability to protect our intellectual property rights for our licensed technology;

• our ability to limit our liability and indemnification obligations to licensees;

• availability of sufficient development and support services to assist licensees in their design and manufacture of products integrating our technology;

• availability of foundry licensees with sufficient capacity to support OEM production; and

• market acceptance of our customers' end products.

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Because our licensed technologies are complex, there may be delays from time to time in developing and enhancing such technologies. There can be no assurance that our existing or any enhanced or new technology will achieve or maintain substantial market acceptance. Our licensees may experience disruptions in production or lower than expected production levels which would adversely affect the revenue that we receive from them. Our technology license agreements generally include an indemnification clause that indemnifies the licensee against liability and damages (including legal defense costs) arising from intellectual property matters. We could be exposed to substantial liability for claims or damages related to intellectual property matters or indemnification claims. Any claim, with or without merit, could result in significant legal fees and require significant attention from our management. Any of the foregoing issues may adversely impact the success of our licensing business and adversely affect our future operating results.

We may not fully realize the anticipated benefits of our completed or future acquisitions or divestitures.

We have acquired, and expect in the future to acquire, additional businesses that we believe will complement or augment our existing businesses. In this regard, in August 2015, we completed our acquisition of Micrel; in July 2014, we completed our acquisition of a controlling interest of ISSC; in April 2014, we completed our acquisition of Supertex; and in August 2012, we completed our acquisition of SMSC. The integration process for our acquisitions may be complex, costly and time consuming and include unanticipated issues, expenses and liabilities. We may not be able to successfully or profitably integrate, operate, maintain and manage any newly acquired operations or employees. We may not be able to maintain uniform standards, procedures and policies and we may be unable to realize the expected synergies and cost savings from the integration. There may be increased risk due to integrating financial reporting and internal control systems. We may have difficulty in developing, manufacturing and marketing the products of a newly acquired company, or in growing the business at the rate we anticipate. Following an acquisition, we may not achieve the revenue or net income levels that justify the acquisition. We may suffer loss of key employees, customers and strategic partners of acquired companies and it may be difficult to implement our corporate culture at acquired companies. We may be subject to claims from terminated employees, shareholders of acquired companies and other third parties related to the transaction. Acquisitions may also result in one-time charges (such as acquisition-related expenses, write-offs, restructuring charges, or future impairment of goodwill), contingent liabilities, adverse tax consequences, additional stock-based compensation expense and other charges that adversely affect our operating results. Additionally, we may fund acquisitions of new businesses or strategic alliances by utilizing cash, borrowings under our credit agreement, raising debt, issuing shares of common stock, or other mechanisms.

Further, if we decide to divest assets or a business, we may encounter difficulty in finding or completing divestiture opportunities or alternative exit strategies on acceptable terms or in a timely manner. These circumstances could delay the achievement of our strategic objectives or cause us to incur additional expenses with respect to assets or a business that we want to dispose of, or we may dispose of assets or a business at a price or on terms that are less favorable than we had anticipated. Even following a divestiture, we may be contractually obligated with respect to certain continuing obligations to customers, vendors, landlords or other third parties. We may also have continuing obligations for pre-existing liabilities related to the assets or businesses. Such obligations may have a material adverse impact on our results of operations and financial condition.

In addition to acquisitions, we have in the past, and expect in the future, to enter into joint development agreements or other business or strategic relationships with other companies. These transactions are subject to a number of risks similar to those we face with our acquisitions including our ability to realize the expected benefits of any such transaction, to successfully market and sell any products resulting from such transactions or to successfully integrate any technology developed through such transactions.

We may lose sales if our suppliers of raw materials and equipment fail to meet our needs.

Our semiconductor manufacturing operations require raw and processed materials and equipment that must meet exacting standards.  We generally have more than one source for these supplies, but there are only a limited number of suppliers capable of delivering various materials and equipment that meet our standards.  The materials and equipment necessary for our business could become more difficult to obtain as worldwide use of semiconductors in product applications increases. Additionally, consolidation in our supply chain due to mergers and acquisitions may reduce the number of suppliers or change the relationships that we have with our suppliers. This could impair sourcing flexibility or increase costs. We have experienced supply shortages from time to time in the past, and on occasion our suppliers have told us they need more time than expected to fill our orders or that they will no longer support certain equipment with updates or spare and replacement parts. An interruption of any materials or equipment sources, or the lack of supplier support for a particular piece of equipment, could harm our business.

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We are exposed to various risks related to legal proceedings or claims.

We are currently, and in the future may be, involved in legal proceedings or claims regarding patent infringement, other intellectual property rights, contracts and other matters. As is typical in the semiconductor industry, we receive notifications from customers or licensees from time to time who believe that we owe them indemnification or other obligations related to infringement claims made against us, our customers or our licensees by third parties. These legal proceedings and claims, even if meritless, could result in substantial costs to us and divert our resources. If we are not able to resolve a claim, settle a matter, obtain necessary licenses on commercially reasonable terms, reengineer our products or processes to avoid infringement, and/or successfully prosecute or defend our position, we could incur uninsured liability in any of them, be required to take an appropriate charge to operations, be enjoined from selling a material portion of our products or using certain processes, suffer a reduction or elimination in the value of our inventories, and our business, financial condition or results of operations could be harmed.

It is also possible that from time to time we may be subject to claims related to the manufacture, performance or use of our products. These claims may be due to injuries or environmental exposures related to manufacturing, a product's nonconformance to our specifications, or specifications agreed upon with the customer, changes in our manufacturing processes, or unexpected customer system issues due to the integration of our products or insufficient design or testing by our customers. We could incur significant expenses related to such matters, including, but not limited to:

• costs related to writing off the value of our inventory of nonconforming products;

• recalling nonconforming products;

• providing support services, product replacements, or modifications to products and the defense of such claims;

• diversion of resources from other projects;

• lost revenue or a delay in the recognition of revenue due to cancellation of orders and unpaid receivables;

• customer imposed fines or penalties for failure to meet contractual requirements; and

• a requirement to pay damages.

Because the systems into which our products are integrated have a higher cost of goods than the products we sell, our expenses and damages may be significantly higher than the sales and profits we received from the products involved. While we specifically exclude consequential damages in our standard terms and conditions, certain of our contracts may not exclude such liabilities. Further, our ability to avoid such liabilities may be limited by applicable law. We do have liability insurance which covers certain damages arising out of product defects, but we do not expect that insurance will cover all claims or be of a sufficient amount to fully protect against such claims. Costs or payments we may make in connection with these customer claims may adversely affect the results of our operations.

Further, we sell to customers in industries such as automotive, aerospace, and medical, where failure of the systems in which our products are integrated could cause damage to property or persons. We may be subject to claims if our products, or the integration of our products, cause system failures. We will face increased exposure to claims if there are substantial increases in either the volume of our sales into these applications or the frequency of system failures integrating our products.

Failure to adequately protect our intellectual property could result in lost revenue or market opportunities.

Our ability to obtain patents, licenses and other intellectual property rights covering our products and manufacturing processes is important for our success. To that end, we have acquired certain patents and patent licenses and intend to continue to seek patents on our technology and manufacturing processes. The process of seeking patent protection can be long and expensive, and patents may not be issued from currently pending or future applications. In addition, our existing and new patents, trademarks and copyrights that issue may not have sufficient scope or strength to provide meaningful protection or commercial advantage to us. We may be subject to, or may ourselves initiate, interference proceedings in the U.S. Patent and Trademark Office, patent offices of a foreign country or U.S. or foreign courts, which can require significant financial and management resources. In addition, the laws of certain foreign countries do not protect our intellectual property rights to the same extent as the laws of the U.S. Infringement of our intellectual property rights by a third party could result in uncompensated lost market and revenue opportunities for us. Although we continue to vigorously and aggressively defend and protect our intellectual property on a worldwide basis, there can be no assurance that we will be successful in our endeavors.

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Our operating results may be adversely impacted if economic conditions impact the financial viability of our licensees, customers, distributors, or suppliers.

We regularly review the financial performance of our licensees, customers, distributors and suppliers. However, any downturn in global economic conditions may adversely impact the financial viability of our licensees, customers, distributors or suppliers. The financial failure of a large licensee, customer or distributor, an important supplier, or a group thereof, could have an adverse impact on our operating results and could result in our not being able to collect our accounts receivable balances, higher reserves for doubtful accounts, write-offs for accounts receivable, and higher operating costs as a percentage of net sales.

We are highly dependent on foreign sales and operations, which exposes us to foreign political and economic risks.

Sales to foreign customers account for a substantial portion of our net sales. During the first six months of fiscal 2016, approximately 85% of our net sales were made to foreign customers, including 30% in China. During fiscal 2015, approximately 84% of our net sales were made to foreign customers, including 28% in China. A strong position in the Chinese market is a key component of our global growth strategy. The market for integrated circuit products in China is highly competitive, and both international and domestic competitors are aggressively seeking to increase their market share. Increased competition or economic weakness in the China market may make it difficult for us to achieve our desired sales volumes in China. In particular, recent weak economic conditions in China have had an adverse impact on our net sales and we are unable to predict whether such weakness will continue or worsen in future periods. We purchase a substantial portion of our raw materials and equipment from foreign suppliers. In addition, we own product assembly and testing facilities near Bangkok, Thailand, which has experienced periods of political instability in the past. Substantially all of our finished goods inventory is maintained in Thailand. From time to time, Thailand has also experienced periods of severe flooding. There can be no assurance that any future flooding or political instability in Thailand would not have a material adverse impact on our operations. We use various foundries and other foreign contractors for a significant portion of our assembly and testing and wafer fabrication requirements.

Our reliance on foreign operations, foreign suppliers, maintenance of substantially all of our finished goods inventory at foreign locations and significant foreign sales exposes us to foreign political and economic risks, including, but not limited to:

• political, social and economic instability;

• economic uncertainty in the worldwide markets served by us;

• trade restrictions and changes in tariffs;

• import and export license requirements and restrictions;

• changes in rules and laws related to taxes, environmental, health and safety, technical standards and consumer protection in various jurisdictions;

• currency fluctuations and foreign exchange regulations;

• difficulties in staffing and managing international operations;

• employment regulations;

• disruptions in international transport or delivery;

• public health conditions;

• difficulties in collecting receivables and longer payment cycles; and

• potentially adverse tax consequences.

If any of these risks materialize, or are worse than we anticipate, our sales could decrease and our operating results could suffer.

We do not typically have long-term contracts with our customers, but where we do, certain terms of such contracts expose us to risks and liabilities.

We do not typically enter into long-term contracts with our customers and we cannot be certain about future order levels from our customers. When we do enter into customer contracts, the contract is generally cancelable at the convenience of the customer. Even though we had approximately 92,000 customers and our ten largest direct customers made up approximately 10% of our total revenue for the six-month period ended September 30, 2015, cancellation of customer contracts could have an adverse impact on our revenue and profits.

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We have entered into contracts with certain customers that differ from our standard terms of sale. Further, as a result of our acquisitions, we may inherit certain customer contracts that differ from our standard terms of sale. For several of the significant markets that we sell into, such as the automotive and personal computer markets, our current or potential customers may possess significant leverage over us in negotiating the terms and conditions of supply as a result of their market size and position. For example, under certain contracts we may commit to supply specific quantities of products on scheduled delivery dates, or agree to extend our obligations for certain liabilities such as warranties or indemnification for quality issues or claims of intellectual property infringement. If we are unable to supply the customer as required under the contract, the customer may incur additional production costs, lost revenues due to subsequent delays in their own manufacturing schedule, or quality-related issues. We may be liable for the customer's costs, expenses and damages associated with their claims and we may be obligated to defend the customer against claims of intellectual property infringement and pay the associated legal fees. While we try to limit the number of contracts that we sign which contain such special provisions, manage the risks underlying such liabilities, and set caps on our liability exposure, sometimes we are not able to do so. In order to win important designs, avoid losing business to competitors, maintain existing business, or be permitted to bid on new business, we have been, and may in the future be, forced to agree to uncapped liability for such items as intellectual property infringement or confidentiality. Such provisions expose us to risk of liability far exceeding the purchase price of the products we sell under such contracts, the lifetime revenues we receive from such products, or various forms of potential consequential damages. These significant additional risks could result in a material adverse impact on our results of operations and financial condition.

We must attract and retain qualified personnel to be successful, and competition for qualified personnel can be intense.

Our success depends upon the efforts and abilities of our senior management, engineering, manufacturing and other personnel. The competition for qualified engineering and management personnel can be intense. We may be unsuccessful in retaining our existing key personnel or in attracting and retaining additional key personnel that we require. The loss of the services of one or more of our key personnel or the inability to add key personnel could harm our business. The loss of, or any inability to attract personnel, even if not key personnel, if experienced in sufficient numbers could harm our business. We have no employment agreements with any member of our senior management team. 

Business interruptions to our operations or the operations of our key vendors, subcontractors, licensees or customers, whether due to natural disasters or other events, could harm our business.

Operations at any of our facilities, at the facilities of any of our wafer fabrication or assembly and test subcontractors, or at any of our significant vendors or customers may be disrupted for reasons beyond our control. These reasons may include work stoppages, power loss, incidents of terrorism or security risk, political instability, public health issues, telecommunications, transportation or other infrastructure failure, radioactive contamination, fire, earthquake, floods, volcanic eruptions or other natural disasters. We have taken steps to mitigate the impact of some of these events should they occur; however, we cannot be certain that our actions will be effective to avoid a significant impact on our business in the event of a disaster or other business interruption.

In particular, Thailand has experienced periods of severe flooding in recent years. While our facilities in Thailand have continued to operate normally, there can be no assurance that any future flooding in Thailand would not have a material adverse impact on our operations. If operations at any of our facilities, or our subcontractors' facilities are interrupted, we may not be able to shift production to other facilities on a timely basis, and we may need to spend significant amounts to repair or replace our facilities and equipment.  If we experienced business interruptions, we would likely experience delays in shipments of products to our customers and alternate sources for production may be unavailable on acceptable terms. This could result in reduced revenues and profits and the cancellation of orders or loss of customers. Although we maintain business interruption insurance, such insurance will likely not be enough to compensate us for any losses that may occur and any losses or damages incurred by us as a result of business interruptions could significantly harm our business.

Additionally, operations at our customers and licensees may be disrupted for a number of reasons. In the event of customer disruptions, sales of our products may decline and our revenue, profitability and financial condition could suffer. Likewise, if our licensees are unable to manufacture and ship products incorporating our technology, or if there is a decrease in product demand due to a business disruption, our royalty revenue may decline as our licenses are based on per unit royalties.

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Our financial condition and results of operations could be adversely affected if we do not effectively manage our current or future debt.

In February 2015, we amended our credit agreement to increase the revolving credit facility to $2.555 billion and remove the term loan. At September 30, 2015, we had $1,296.5 million in outstanding borrowings under such credit agreement. In August 2015, we increased our borrowings under our credit agreement to finance the approximately $430 million cash portion of the purchase price of our Micrel acquisition which closed on August 3, 2015. In February 2015, we sold $1.725 billion of principal value of our 1.625% senior subordinated convertible debentures. As a result of such transactions, we have a substantially greater amount of debt than we had maintained in the past. Our maintenance of substantial levels of debt could adversely affect our ability to take advantage of corporate opportunities and could adversely affect our financial condition and results of operations. We may need or desire to refinance all or a portion of our loans under our credit agreement, our debentures or any other future indebtedness and there can be no assurance that we will be able to refinance any of our indebtedness on commercially reasonable terms, if at all.

Fluctuations in foreign currency exchange rates could adversely impact our operating results.

We use forward currency exchange contracts in an attempt to reduce the adverse earnings impact from the effect of exchange rate fluctuations on our non-U.S. dollar net balance sheet exposures. Nevertheless, in periods when the U.S. dollar significantly fluctuates in relation to the non-U.S. currencies in which we transact business, the value of our non-U.S. dollar transactions can have an adverse effect on our results of operations and financial condition. In particular, in periods when a foreign currency significantly declines in value in relation to the U.S. dollar, such as recent declines in the Euro relative to the U.S. dollar, customers transacting in that foreign currency may find it more difficult to fulfill their previously committed contractual obligations or to undertake new obligations to make payments or purchase products. In periods when the U.S. dollar is significantly declining in relation to the British pound, Euro and Thai baht, the operational costs in our European and Thailand subsidiaries are adversely affected. Over the past several months, the U.S. dollar has appreciated significantly against the Euro and other major currencies.  Although our business has not been materially adversely impacted by such strength in the U.S. dollar, there can be no assurance as to the future impact that a strong dollar will have on our business or results of operations.

Interruptions in our information technology systems could adversely affect our business.

We rely on the efficient and uninterrupted operation of complex information technology systems and networks to operate our business.  Any significant disruption to our systems or networks, including, but not limited to, new system implementations, computer viruses, security breaches, facility issues, natural disasters, terrorism, war, telecommunication failures or energy blackouts could have a material adverse impact on our operations, sales and operating results.  Such disruption could result in a loss of our intellectual property or the release of sensitive competitive information or supplier, customer or employee personal data. Any loss of such information could harm our competitive position, result in a loss of customer confidence, and cause us to incur significant costs to remedy the damages caused by any such disruptions or security breaches. Additionally, any failure to properly manage the collection, handling, transfer or disposal of personal data of employees and customers may result in regulatory penalties, enforcement actions, remediation obligations, litigation, fines and other sanctions.

From time to time, we have experienced verifiable attacks on our data, attempts to breach our security and attempts to introduce malicious software into our IT systems; however, such attacks have not previously resulted in any material damage to us. Were future attacks successful, we may be unaware of the incident, its magnitude, or its effects until significant harm is done. In recent years, we have implemented improvements to our protective measures which are not limited to the following: firewalls, antivirus measures, patches, log monitors, routine backups with offsite retention of storage media, system audits, data partitioning and routine password modifications. There can be no assurance that such system improvements will be sufficient to prevent or limit the damage from any future cyber attack or disruptions. Any such attack or disruption could result in additional costs related to rebuilding of our internal systems, defending litigation, responding to regulatory actions, or paying damages. Such attacks or disruption could have a material adverse impact on our business, operations and financial results.

Third-party service providers, such as wafer foundries, assembly and test contractors, distributors, credit card processors and other vendors have access to certain portions of our and our customers' sensitive data. In the event that these service providers do not properly safeguard the data that they hold, security breaches and loss of data could result. Any such loss of data by our third-party service providers could negatively impact our business, operations and financial results, as well as our relationship with our customers.

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The occurrence of events for which we are self-insured, or which exceed our insurance limits, may adversely affect our profitability and liquidity.

We have insurance contracts with independent insurance companies related to many different types of risk; however, we self-insure for some potentially significant risks and obligations. In these circumstances, we believe that it is more cost effective for us to self-insure certain risks than to pay the high premium costs. The risks and exposures that we self-insure include, but are not limited to certain property, product defects, employment risks, political risks, and intellectual property matters. Should there be a loss or adverse judgment or other decision in an area for which we are self-insured, then our financial condition, results of operations and liquidity may be adversely affected.

We are subject to stringent environmental and other regulations, which may force us to incur significant expenses.

We must comply with many federal, state, local and foreign governmental regulations related to the use, storage, discharge and disposal of toxic, volatile or otherwise hazardous substances used in our products and manufacturing processes.  Our failure to comply with applicable regulations could result in fines, suspension of production, cessation of operations or future liabilities. Such environmental regulations have required us in the past, and could require us in the future to buy costly equipment or to incur significant expenses to comply with such regulations. Our failure to control the use of, or adequately restrict the discharge of, hazardous substances could impact the health of our employees and others and could impact our ability to operate. Such failure could also restrict our ability to ship certain products to certain countries, require us to modify our operations logistics, or require us to incur other significant costs and expenses. There is a continuing expansion in environmental laws with a focus on reducing or eliminating hazardous substances and substances of high concern in electronic products and shipping materials. These and other future environmental regulations could require us to reengineer certain of our existing products and may make it more expensive for us to manufacture, sell and ship our products. In addition, the number and complexity of laws focused on the energy efficiency of electronic products and accessories, the recycling of electronic products, and the reduction in the quantity and the recycling of packing materials have expanded significantly. It may be difficult for us to timely comply with these laws and we may not have sufficient quantities of compliant products to meet customers' needs, thereby adversely impacting our sales and profitability. We may also have to write off inventory in the event that we hold unsaleable inventory as a result of changes to regulations or customer requirements. We expect these risks and trends to continue. In addition, we anticipate increased customer requirements to meet voluntary criteria related to the reduction or elimination of substances of high concern in our products and energy efficiency measures. These requirements may increase our own costs, as well as those passed on to us by our supply chain.

Customer demands for us to implement business practices that are more stringent than existing legal requirements may reduce our revenue opportunities or cause us to incur higher costs.

Some of our customers and potential customers are requiring that we implement operating practices that are more stringent than what is required by applicable laws with respect to workplace and labor requirements, the type of materials we use in our products, environmental matters or other items. To comply with such requirements, we may have to pass these same operating practices on to our suppliers. Our suppliers may refuse to implement these operating practices, or may charge us more for complying with them. The cost to implement such practices may cause us to incur higher costs and reduce our profitability, and if we choose not to implement such practices, such customers may disqualify us as a supplier, resulting in decreased revenue opportunities. Developing, administering, monitoring and auditing these customer-requested practices at our own sites and those in our supply chain will increase our costs and may require that we hire more personnel.

Potential U.S. tax legislation regarding our foreign earnings could materially and adversely impact our business and financial results.

Currently, a majority of our revenue is generated from customers located outside the U.S., and a substantial portion of our assets, including employees, are located outside of the U.S. Present U.S. income taxes and foreign withholding taxes have not been provided on undistributed earnings for certain of our non-U.S. subsidiaries, because such earnings are intended to be indefinitely reinvested in the operations of those subsidiaries. In recent years, there have been a number of initiatives proposed by the Obama administration and members of Congress regarding the tax treatment of such undistributed earnings. If adopted, certain of these initiatives would substantially reduce our ability to defer U.S. taxes including repealing the deferral of U.S. taxation of foreign earnings, eliminating utilization of or substantially reducing our ability to claim foreign tax credits, and eliminating various tax deductions until foreign earnings are repatriated to the U.S. Changes in tax law such as these proposals could have a material adverse impact on our financial position and results of operations.

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Customer demands and new regulations related to conflict-free minerals may force us to incur additional expenses.

As required by the Dodd-Frank Wall Street Reform and Consumer Protection Act, in August 2012, the SEC released investigation, disclosure and reporting requirements regarding the use of "conflict" minerals mined from the Democratic Republic of Congo and adjoining countries and which are necessary to the functionality or production of products.  We filed a report on Form SD with the SEC regarding such matters on June 1, 2015. Other countries are considering similar regulations.  If we cannot certify that we are using conflict-free minerals, customers may demand that we change the sourcing of minerals and other materials used in the manufacture of our products, even if the costs for compliant minerals and materials significantly increases and availability is limited.  If we make changes to materials and/or suppliers, there will likely be costs associated with qualifying new suppliers and production capacity and quality could be negatively impacted.  Our relationships with customers and suppliers may be adversely affected if we are unable to certify that our products are "conflict-free." We have incurred, and expect in the future to incur, additional costs associated with complying with these new disclosure requirements, such as costs related to determining the source of any conflict minerals used in our products.  We may also encounter challenges to satisfy those customers who require that all of the components of our products be certified as conflict free.  If we are not able to meet customer requirements, customers may choose to disqualify us as a supplier and we may have to write off inventory in the event that it cannot be sold.

Regulatory authorities in jurisdictions into which we ship our products could levy fines or restrict our ability to export products.

A significant portion of our sales are made outside of the U.S. through the exporting and re-exporting of products. In addition to local jurisdictions' export regulations, our U.S.-manufactured products or products based on U.S. technology are subject to U.S. laws and regulations governing international trade and exports, including, but not limited to the Foreign Corrupt Practices Act, Export Administration Regulations (EAR), and trade sanctions against embargoed countries and destinations administered by the U.S. Department of the Treasury, Office of Foreign Assets Control (OFAC). Licenses or proper license exceptions are required for the shipment of our products to certain countries. A determination by the U.S. or foreign government that we have failed to comply with these or other export regulations or anti-bribery regulations can result in penalties which may include denial of export privileges, fines, civil or criminal penalties, and seizure of products. Such penalties could have a material adverse effect on our business, sales and earnings. Further, a change in these laws and regulations could restrict our ability to export to previously permitted countries, customers, distributors or other third parties. Any one or more of these sanctions or a change in laws or regulations could have a material adverse effect on our business, financial condition and results of operations.

The outcome of currently ongoing and future examinations of our income tax returns by the IRS could have an adverse effect on our results of operations.

We are subject to examination of our income tax returns by the IRS and other tax authorities for fiscal 2011 and later. We are currently under IRS audit for fiscal 2011 and fiscal 2012.  We are subject to certain income tax examinations in foreign jurisdictions for fiscal 2007 and later. We regularly assess the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of our provision for income taxes. There can be no assurance that the outcomes from these continuing examinations will not have an adverse effect on our future operating results.

The future trading price of our common stock could be subject to wide fluctuations in response to a variety of factors.

The market price of our common stock has fluctuated significantly in the past and is likely to fluctuate in the future. The future trading price of our common stock could be subject to wide fluctuations in response to a variety of factors, many of which are beyond our control, including, but not limited to:

• quarterly variations in our operating results or the operating results of other technology companies;

• general conditions in the semiconductor industry;

• global economic and financial conditions;

• changes in our financial guidance or our failure to meet such guidance;

• changes in analysts' estimates of our financial performance or buy/sell recommendations;

• any acquisitions we pursue or complete; and

• actual or anticipated announcements of technical innovations or new products by us or our competitors.

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In addition, the stock market has from time to time experienced significant price and volume fluctuations that have affected the market prices for many companies and that often have been unrelated to the operating performance of such companies. These broad market fluctuations and other factors have harmed and may harm the market price of our common stock. Some or all of the foregoing factors could also cause the market price of our convertible debentures to decline or fluctuate substantially.

We may in the future incur impairments to goodwill or long-lived assets.

We review our long-lived assets, including goodwill and other intangible assets, for impairment annually in the fourth fiscal quarter or whenever events or changes in circumstances indicate that the carrying amount of those assets may not be recoverable. Factors that may be considered in assessing whether goodwill or intangible assets may not be recoverable include a decline in our stock price or market capitalization, reduced estimates of future cash flows and slower growth rates in our industry. Our valuation methodology for assessing impairment requires management to make judgments and assumptions based on historical experience and to rely heavily on projections of future operating performance. Because we operate in highly competitive environments, projections of our future operating results and cash flows may vary significantly from our actual results. No goodwill or material long-lived asset impairment charges were recorded in fiscal 2015 or the first six months of fiscal 2016.

Conversion of our debentures will dilute the ownership interest of existing stockholders, including holders who had previously converted their debentures.

The conversion of some or all of our outstanding debentures will dilute the ownership interest of existing stockholders to the extent we deliver common stock upon conversion of the debentures. Upon conversion, we may satisfy our conversion obligation by delivering cash, shares of common stock or any combination, at our option. If upon conversion we elect to deliver cash for the lesser of the conversion value and principal amount of the debentures, we would pay the holder the cash value of the applicable number of shares of our common stock. Upon conversion, we intend to satisfy the lesser of the principal amount or the conversion value of the debentures in cash. If the conversion value of a debenture exceeds the principal amount of the debenture, we may also elect to deliver cash in lieu of common stock for the conversion value in excess of the one thousand dollars principal amount (i.e., the conversion spread). There would be no adjustment to the numerator in the net income per common share computation for the cash settled portion of the debentures as that portion of the debt instrument will always be settled in cash. The conversion spread will be included in the denominator for the computation of diluted net income per common share. Any sales in the public market of any common stock issuable upon conversion of our debentures could adversely affect prevailing market prices of our common stock. In addition, the existence of the debentures may encourage short selling by market participants because the conversion of the debentures could be used to satisfy short positions, or anticipated conversion of the debentures into shares of our common stock could depress the price of our common stock.

Our reported financial results may be adversely affected by new accounting pronouncements or changes in existing accounting standards and practices.

We prepare our financial statements in conformity with accounting principles generally accepted in the U.S. These accounting principles are subject to interpretation or changes by the FASB and the SEC. New accounting pronouncements and varying interpretations of accounting standards and practices have occurred in the past and are expected to occur in the future. New accounting pronouncements or a change in the interpretation of existing accounting standards or practices may have a significant effect on our reported financial results and may even affect our reporting of transactions completed before the change is announced or effective.

Climate change regulations and sustained adverse climate change pose regulatory and physical risks that could harm our results of operations or affect the way we conduct business.

Climate change regulations could require us to limit emissions, change our manufacturing processes, obtain substitute materials which may cost more or be less available, increase our investment in control technology for greenhouse gas emissions, fund offset projects or undertake other costly activities. These regulations could significantly increase our costs and restrict our manufacturing operations by virtue of requirements for new equipment. New permits may be required for our current operations, or expansions thereof. Failure to timely receive permits could result in fines, suspension of production, or cessation of operations at one or more facilities. In addition, restrictions on carbon dioxide or other greenhouse gas emissions could result in significant costs such as higher energy costs, and utility companies passing down carbon taxes, emission cap and trade programs and renewable portfolio standards. The cost of complying, or of failing to comply, with these and other climate change and emissions regulations could have an adverse effect on our operating results.

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Further, any sustained adverse change in climate could have a direct adverse economic impact on us, such as water and power shortages, and higher costs of water or energy to control the temperature of our facilities. Certain of our operations are located in arid or tropical regions, such as Arizona and Thailand. Some environmental experts predict that these regions may become vulnerable to storms, severe floods and droughts due to climate change. While we maintain business recovery plans that are intended to allow us to recover from natural disasters or other events that can interrupt business, we cannot be certain that our plans will protect us from all such disasters or events. 

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

The following table sets forth our purchases of our common stock in the second quarter of fiscal 2016 and the footnote below the table designates the repurchase program that the shares were purchased under:

Issuer Purchases of Equity Securities
Period	(a) Total Number of Shares Purchased	(b) Average Price Paid per Share		(c) Total Number of Shares Purchased as Part of Publicly Announced Program	(d) Maximum Number of Shares that May Yet Be Purchased Under the Program (1)
July 1, 2015 - July 31, 2015	—	$	—	—	20,000,000
August 1, 2015 - August 31, 2015	8,626,795	$	42.17	8,626,795	11,373,205
September 1, 2015 - September 30, 2015	—	$	—	—	11,373,205

⁽¹⁾ In May 2015, our Board of Directors authorized the repurchase of up to 20 million shares of our common stock in the open market or privately negotiated transactions. As of September 30, 2015, 11,373,205 shares of this authorization remained available to be purchased under this program. There is no expiration date associated with this authorization.

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Item 6. Exhibits

10.1	Microchip Technology Incorporated 2004 Equity Incentive Plan, as amended and restated on August 14, 2015 (incorporated by reference to the Company's Current Report on Form 8-K filed on August 18, 2015).
31.1	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification of Chief Executive Officer and Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		MICROCHIP TECHNOLOGY INCORPORATED
Date:	November 9, 2015	By: /s/ J. Eric Bjornholt
		J. Eric Bjornholt
		Vice President and Chief Financial Officer
		(Duly Authorized Officer, and
		Principal Financial and Accounting Officer)

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EX-10.1

MICROCHIP TECHNOLOGY INCORPORATED

2004 EQUITY INCENTIVE PLAN

As Amended and Restated August 14, 2015

1.Purposes of the Plan. The purposes of this 2004 Equity Incentive Plan are:

▪ to attract and retain the best available personnel,

▪ to provide additional incentive to Service Providers, and

▪ to promote the success of the Company’s business.

Awards granted under the Plan may be Nonstatutory Stock Options, Restricted Stock, Stock Appreciation Rights, Performance Shares, Performance Units or Deferred Stock Units, as determined by the Administrator at the time of grant.

2.Definitions. As used herein, the following definitions shall apply:

(a)"Administrator" means the Board or any of its Committees as shall be administering the Plan, in accordance with Section 4 of the Plan.

(b)"Applicable Laws" means the legal requirements relating to the administration of equity compensation plans under state and federal corporate and securities laws and the Code.

(c)"Award" means, individually or collectively, a grant under the Plan of Options, Restricted Stock, Stock Appreciation Rights, Performance Shares, Performance Units or Deferred Stock Units.

(d)"Award Agreement" means the written agreement setting forth the terms and provisions applicable to each Award granted under the Plan. The Award Agreement is subject to the terms and conditions of the Plan.

(e)"Awarded Stock" means the Common Stock subject to an Award.

(f)"Board" means the Board of Directors of the Company.

(g) "Change of Control" means the occurrence of any of the following events, in one or a series of related transactions:

(1)any "person," as such term is used in Sections 13(d) and 14(d) of the Exchange Act, other than the Company, a subsidiary of the Company or a Company employee benefit plan, including any trustee of such plan acting as trustee, is or becomes the "beneficial owner" (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing fifty percent (50%) or more of the combined voting power of the Company’s then outstanding securities entitled to vote generally in the election of directors; or

(2)    a merger or consolidation of the Company or any direct or indirect subsidiary of the Company with any other corporation, other than a merger or consolidation which would result in the voting securities of the Company outstanding immediately prior thereto continuing to represent (either by remaining outstanding or by being converted into voting securities of the surviving entity) at least fifty percent (50%) of the total voting power represented by the voting securities of the Company or such surviving entity outstanding immediately after such merger or consolidation; or

(3)    the sale or disposition by the Company of all or substantially all of the Company’s assets; or

(4)    a change in the composition of the Board, as a result of which fewer than a majority of the directors are Incumbent Directors. "Incumbent Directors" shall mean directors who either (A) are Directors as of the date this Plan is approved by the Board, or (B) are elected, or nominated for election, to the Board with the affirmative votes of at least a majority of the Incumbent Directors and whose election or nomination was not in connection with any transaction described in (1) or (2) above or in connection with an actual or threatened proxy contest relating to the election of directors of the Company.

(h)    "Code" means the Internal Revenue Code of 1986, as amended.

(i)    "Committee" means a committee appointed by the Board in accordance with Section 4 of the Plan.

(j)    "Common Stock" means the common stock of the Company.

(k)    "Company" means Microchip Technology Incorporated.

(l)    "Consultant" means any person, including an advisor, engaged by the Company or a Parent or Subsidiary to render services and who is compensated for such services. The term Consultant shall not include Directors who are compensated by the Company only for their service as Directors.

(m)    "Deferred Stock Unit" means a deferred stock unit Award granted to a Participant pursuant to Section 13.

(n)    "Director" means a member of the Board.

(o)    "Disability" means total and permanent disability as defined in Section 22(e)(3) of the Code.

(p)    "Employee" means any person, including Officers and Directors, employed by the Company or any Parent or Subsidiary of the Company. A Service Provider shall not cease to be an Employee in the case of (i) any leave of absence approved by the Company or (ii) transfers between locations of the Company or between the Company, its Parent, any Subsidiary, or any successor. Neither service as a Director nor payment of a director’s fee by the Company shall be sufficient to constitute "employment" by the Company.

(q)    "Exchange Act" means the Securities Exchange Act of 1934, as amended.

(r)    "Fair Market Value" means, as of any date, the value of Common Stock determined as follows:

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(1)If the Common Stock is listed on any established stock exchange or a national market system, including without limitation the Nasdaq National Market of the National Association of Securities Dealers, Inc. Automated Quotation ("Nasdaq") System, the Fair Market Value of a Share of Common Stock shall be the closing sales price for such stock (or the closing bid, if no sales were reported) as quoted on such system or exchange (or the exchange with the greatest volume of trading in Common Stock) on the day of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable;

(2)If the Common Stock is quoted on the Nasdaq System (but not on the Nasdaq National Market thereof) or is regularly quoted by a recognized securities dealer but selling prices are not reported, the Fair Market Value of a Share of Common Stock shall be the mean between the high bid and low asked prices for the Common Stock on the last market trading day prior to the day of determination, as reported in The Wall Street Journal or such other source as the Administrator deems reliable; or

(3)In the absence of an established market for the Common Stock, the Fair Market Value shall be determined in good faith by the Administrator.

(s)    "Fiscal Year" means a fiscal year of the Company.

(t)    "Fiscal Quarter" means a fiscal quarter of the Company.

(u)    "Non-Employee Director" means a member of the Board who is not an Employee.

(v)    "Nonstatutory Stock Option" means an Option not intended to qualify as an incentive stock option under Section 422 of the Code and regulations promulgated thereunder.

(w)    "Notice of Grant" means a written or electronic notice evidencing certain terms and conditions of an individual Award. The Notice of Grant is part of the Option Agreement.

(x)    "Officer" means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act and the rules and regulations promulgated thereunder.

(y)    "Option" means a stock option granted pursuant to the Plan.

(z)    "Option Agreement" means a written or electronic agreement between the Company and a Participant evidencing the terms and conditions of an individual Option grant. The Option Agreement is subject to the terms and conditions of the Plan.

(aa)    "Parent" means a "parent corporation," whether now or hereafter existing, as defined in Section 424(e) of the Code.

(bb)    "Participant" means the holder of an outstanding Award granted under the Plan.

(cc)    "Performance Goals" means the goal(s) (or combined goal(s)) determined by the Administrator (in its discretion) to be applicable to a Participant with respect to an Award. As determined by the Administrator, the performance measures for any performance period will be any one or more of the following objective performance criteria, applied to either the Company as a whole or, except with respect to stockholder return metrics, to a region, business unit, affiliate or business segment or specific product or products, and measured either on an absolute basis or relative to a pre-established target, to a previous period's results or to a designated comparison group, and, with respect to financial metrics, which may be determined in accordance with United States Generally Accepted Accounting Principles ("GAAP"), in

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accordance with accounting principles established by the International Accounting Standards Board ("IASB Principles") or which may be adjusted when established to exclude any items otherwise includable under GAAP or under IASB Principles or any other objectively determinable items including, without limitation, (a) any extraordinary non-recurring items, (b) the effect of any merger, acquisition, or other business combination or divestiture, or (c) the effect of any changes in accounting principles affecting the Company's or a business units', region's, affiliate's or business segment's reported results: (i) cash flow (including operating cash flow or free cash flow), (ii) cash position, (iii) revenue (on an absolute basis or adjusted for currency effects), (iv) revenue growth, (v) contribution margin, (vi) gross margin or gross margin as a percentage of revenue, (vii) operating margin or operating margin as a percentage of revenue (viii) operating expenses or operating expenses as a percentage of revenue, (ix) earnings (which may include earnings before interest and taxes, earnings before taxes and net earnings), (x) earnings per share, (xi) net income, (xii) stock price, (xiii) return on equity, (xiv) total stockholder return, (xv) growth in stockholder value relative to a specified publicly reported index (such as the S&P 500 Index), (xvi) return on capital, (xvii) return on assets or net assets, (xviii) return on investment, (xix) operating profit or net operating profit, (xx) market share (which may include ranking for a specific product line or market share percentage for a given product line), (xxi) contract awards or backlog, (xxii) overhead or other expense reduction, (xxiii) credit rating, (xxiv) objective customer indicators, (xxv) new product invention or innovation, (xxvi) attainment of research and development milestones, (xxvii) improvements in productivity, (xxviii) attainment of objective operating goals, and (xxix) objective employee metrics. The Performance Goals may differ from Participant to Participant and from Award to Award.

(dd)    "Performance Share" means a performance share Award granted to a Participant pursuant to Section 11.

(ee)    "Performance Unit" means a performance unit Award granted to a Participant pursuant to Section 12.

(ff)    "Plan" means this 2004 Equity Incentive Plan.

(gg)    "Restricted Stock" means Shares granted pursuant to Section 10 of the Plan.

(hh)    "Rule 16b-3" means Rule 16b-3 of the Exchange Act or any successor to Rule 16b-3, as in effect when discretion is being exercised with respect to the Plan.

(ii)    "Section 16(b)" means Section 16(b) of the Exchange Act, as amended.

(jj)    "Service Provider" means an Employee, Consultant or Non-Employee Director.

(kk)    "Share" means a share of the Common Stock, as adjusted in accordance with Section 19 of the Plan.

(ll)    "Stock Appreciation Right" or "SAR" means an Award granted pursuant to Section 9 of the Plan.

(mm)    "Subsidiary" means a "subsidiary corporation," whether now or hereafter existing, as defined in Section 424(f) of the Code.

3.    Stock Subject to the Plan. Subject to the provisions of Section 19 of the Plan, the maximum aggregate number of Shares which may be issued under the Plan is 30,300,000Shares plus any Shares subject to any outstanding options under the Company’s 1993 or 1997 Nonstatutory Stock Option Plans that expire unexercised, up to a maximum of an additional 5,000,000 Shares.

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The Shares may be authorized, but unissued, or reacquired Common Stock.

If an Award expires or becomes unexercisable without having been exercised in full, or with respect to Restricted Stock, Performance Shares, Performance Units or Deferred Stock Units, is forfeited to or repurchased by the Company, the unpurchased Shares (or for Awards other than Options and SARs, the forfeited or repurchased Shares) which were subject thereto shall become available for future grant or sale under the Plan (unless the Plan has terminated). With respect to SARs, only Shares actually issued pursuant to an SAR shall cease to be available under the Plan; all remaining Shares under SARs shall remain available for future grant or sale under the Plan (unless the Plan has terminated). However, Shares that have actually been issued under the Plan under any Award shall not be returned to the Plan and shall not become available for future distribution under the Plan; provided, however, that if Shares of Restricted Stock, Performance Shares, Performance Units or Deferred Stock Units are repurchased by the Company at their original purchase price or are forfeited to the Company, such Shares shall become available for future grant under the Plan. Shares used to pay the exercise price or purchase price, if applicable, of an Award shall become available for future grant or sale under the Plan. To the extent an Award under the Plan is paid out in cash rather than stock, such cash payment shall not result in reducing the number of Shares available for issuance under the Plan.

4.    Administration of the Plan.

(a)Procedure.

(1)Multiple Administrative Bodies. The Plan may be administered by different Committees with respect to different groups of Service Providers.

(2)Section 162(m). To the extent that the Administrator determines it to be desirable to qualify Options granted hereunder as "performance-based compensation" within the meaning of Section 162(m) of the Code, the Plan shall be administered by a Committee of two or more "outside directors" within the meaning of Section 162(m) of the Code.

(3)Rule 16b-3. To the extent desirable to qualify transactions hereunder as exempt under Rule 16b-3, the transactions contemplated hereunder shall be structured to satisfy the requirements for exemption under Rule 16b-3.

(4)Other Administration. Other than as provided above, the Plan shall be administered by (A) the Board or (B) a Committee, which committee shall be constituted to satisfy Applicable Laws.

(b)Powers of the Administrator. Subject to the provisions of the Plan, and in the case of a Committee, subject to the specific duties delegated by the Board to such Committee, the Administrator shall have the authority, in its discretion:

(1)to determine the Fair Market Value of the Common Stock, in accordance with Section 2(u) of the Plan;

(2)to select the Service Providers to whom Awards may be granted hereunder (other than the automatic grants to Non-Employee Directors provided for in Section 17 of the Plan);

(3)to determine whether and to what extent Awards or any combination thereof, are granted under the Plan;

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(4)to determine the number of shares of Common Stock or equivalent units to be covered by each Award granted under the Plan;

(5)to approve forms of agreement for use under the Plan;

(6)to determine the terms and conditions, not inconsistent with the terms of the Plan, of any award granted under the Plan. Such terms and conditions include, but are not limited to, the exercise price, the time or times when Options or SARs may be exercised or other Awards vest (which may be based on performance criteria), any vesting acceleration or waiver of forfeiture restrictions, and any restriction or limitation regarding any Award or the shares of Common Stock relating thereto, based in each case on such factors as the Administrator, in its sole discretion, shall determine;

(7)to construe and interpret the terms of the Plan and Awards;

(8)to prescribe, amend and rescind rules and regulations relating to the Plan, including rules and regulations relating to sub-plans established for the purpose of qualifying for preferred tax treatment under foreign tax laws;

(9)to modify or amend each Award (subject to Sections 8(c), 9(b) and 21(c) of the Plan), including the discretionary authority to extend the post-termination exercisability period of Options and SARs longer than is otherwise provided for in the Plan;

(10)to authorize any person to execute on behalf of the Company any instrument required to effect the grant of an Award previously granted by the Administrator;

(11)to allow Participants to satisfy withholding tax obligations by electing to have the Company withhold from the Shares or cash to be issued upon exercise or vesting of an Award (or distribution of a Deferred Stock Unit) that number of Shares or cash having a Fair Market Value equal to the minimum amount required to be withheld (but no more). The Fair Market Value of any Shares to be withheld shall be determined on the date that the amount of tax to be withheld is to be determined. All elections by a Participant to have Shares or cash withheld for this purpose shall be made in such form and under such conditions as the Administrator may deem necessary or advisable;

(12)to determine the terms and restrictions applicable to Awards; and

(13)to make all other determinations deemed necessary or advisable for administering the Plan.

(c)Effect of Administrator’s Decision. The Administrator’s decisions, determinations and interpretations shall be final and binding on all Participants and any other holders of Awards.

5.    Eligibility. Restricted Stock, Performance Shares, Performance Units, Stock Appreciation Rights, Deferred Stock Units and Nonstatutory Stock Options may be granted to Service Providers. Non-Employee Directors shall only receive Awards pursuant to Section 17 of the Plan.

6.    Limitations.

(a)Nonstatutory Stock Option. Each Option shall be designated in the Notice of Grant as a Nonstatutory Stock Option.

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(b)No Employment Rights. Neither the Plan nor any Award shall confer upon a Participant any right with respect to continuing the Participant’s employment with the Company or its Subsidiaries, nor shall they interfere in any way with the Participant’s right or the Company’s or Subsidiary’s right, as the case may be, to terminate such employment at any time, with or without cause or notice.

(c)162(m) Limitations. The following limitations shall apply to grants of Options and Stock Appreciation Rights to Participants:

(1)No Participant shall be granted, in any Fiscal Year, Options and Stock Appreciation Rights to purchase more than 1,500,000Shares; provided, however, that such limit shall be 4,000,000 Shares in the Participant’s first Fiscal Year of Company service.

(2)The foregoing limitations shall be adjusted proportionately in connection with any change in the Company’s capitalization as described in Section 19(a).

7.    Term of Plan. The Plan is effective as of October 1, 2004 (the "Effective Date"). It shall continue in effect until May 22, 2022, unless sooner terminated under Section 21 of the Plan.

8.    Stock Options.

(a)Term. The term of each Option shall be stated in the Notice of Grant; provided, however, that the term shall be ten (10) years from the date of grant or such shorter term as may be provided in the Notice of Grant.

(b)Option Exercise Price. The per share exercise price for the Shares to be issued pursuant to exercise of an Option shall be determined by the Administrator and shall be no less than 100% of the Fair Market Value per share on the date of grant.

(c)No Repricing. The exercise price for an Option may not be reduced. This shall include, without limitation, a repricing of the Option as well as an Option exchange program whereby the Participant agrees to cancel an existing Option in exchange for an Option, SAR, other Award or cash.

(d)Waiting Period and Exercise Dates. At the time an Option is granted, the Administrator shall fix the period within which the Option may be exercised and shall determine any conditions which must be satisfied before the Option may be exercised. In so doing, the Administrator may specify that an Option may not be exercised until the completion of a service period.

(e)Form of Consideration. The Administrator shall determine the acceptable form of consideration for exercising an Option, including the method of payment. Subject to Applicable Laws, such consideration may consist entirely of:

(1)cash;

(2)check;

(3)other Shares which (A) in the case of Shares acquired upon exercise of an option have been owned by the Participant for more than six months on the date of surrender, and (B) have a Fair Market Value on the date of surrender equal to the aggregate exercise price of the Shares as to which said Option shall be exercised;

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(4)delivery of a properly executed exercise notice together with such other documentation as the Administrator and the broker, if applicable, shall require to effect an exercise of the Option and delivery to the Company of the sale proceeds required to pay the exercise price;

(5)any combination of the foregoing methods of payment; or

(6)such other consideration and method of payment for the issuance of Shares to the extent permitted by Applicable Laws.

(f)Exercise of Option.

Any Option granted hereunder shall be exercisable according to the terms of the Plan and at such times and under such conditions as determined by the Administrator and set forth in the Option Agreement.

An Option may not be exercised for a fraction of a Share.

An Option shall be deemed exercised when the Company receives: (i) written or electronic notice of exercise (in accordance with the Option Agreement) from the person entitled to exercise the Option, and (ii) full payment for the Shares with respect to which the Option is exercised. Full payment may consist of any consideration and method of payment authorized by the Administrator and permitted by the Option Agreement and the Plan. Shares issued upon exercise of an Option shall be issued in the name of the Participant or, if requested by the Participant, in the name of the Participant and his or her spouse. Until the stock certificate evidencing such Shares is issued (as evidenced by the appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company), no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the optioned stock, notwithstanding the exercise of the Option. The Company shall issue (or cause to be issued) such stock certificate promptly after the Option is exercised. No adjustment will be made for a dividend or other right for which the record date is prior to the date the stock certificate is issued, except as provided in Section 19 of the Plan.

Exercising an Option in any manner shall decrease the number of Shares thereafter available for sale under the Option, by the number of Shares as to which the Option is exercised.

(g)Termination of Relationship as a Service Provider. If a Participant ceases to be a Service Provider, other than upon the Participant’s misconduct, death or Disability, the Participant may exercise his or her Option within such period of time as is specified in the Option Agreement to the extent that the Option is vested on the date of termination (but in no event later than the expiration of the term of such Option as set forth in the Option Agreement). In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for three (3) months following the Participant’s termination. If, on the date of termination, the Participant is not vested as to his or her entire Option, the Shares covered by the unvested portion of the Option shall revert to the Plan. If, after termination, the Participant does not exercise his or her Option within the time specified by the Administrator, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan.

(h)Disability. If a Participant ceases to be a Service Provider as a result of the Participant’s Disability, the Participant may exercise his or her Option within such period of time as is specified in the Option Agreement to the extent the Option is vested on the date of termination (but in no event later than the expiration of the term of such Option as set forth in the Option Agreement). In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for six (6) months following the Participant’s termination. If, on the date of termination, the Participant is not vested as to his

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or her entire Option, the Shares covered by the unvested portion of the Option shall revert to the Plan. If, after termination, the Participant does not exercise his or her Option within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan.

(i)Death of Participant. If a Participant dies while a Service Provider, the Option may be exercised following the Participant’s death within such period of time as is specified in the Option Agreement (but in no event may the option be exercised later than the expiration of the term of such Option as set forth in the Option Agreement), by the personal representative of the Participant’s estate, provided such representative has been designated prior to Participant’s death in a form acceptable to the Administrator. If no such representative has been designated by the Participant, then such Option may be exercised by the person(s) to whom the Option is transferred pursuant to the Participant’s will or in accordance with the laws of descent and distribution. In the absence of a specified time in the Option Agreement, the Option shall remain exercisable for twelve (12) months following Participant’s death. If the Option is not so exercised within the time specified herein, the Option shall terminate, and the Shares covered by such Option shall revert to the Plan.

9.    Stock Appreciation Rights.

(a)Grant of SARs. Subject to the terms and conditions of the Plan, SARs may be granted to Participants at any time and from time to time as shall be determined by the Administrator, in its sole discretion. The Administrator shall have complete discretion to determine the number of SARs granted to any Participant.

(b)Exercise Price and Other Terms. Subject to Section 4(c) of the Plan, the Administrator, subject to the provisions of the Plan, shall have complete discretion to determine the terms and conditions of SARs granted under the Plan; provided, however, that no SAR may have a term of more than ten (10) years from the date of grant. The per share exercise price for the Shares or cash to be issued pursuant to exercise of an SAR shall be determined by the Administrator and shall be no less than 100% of the Fair Market Value per share on the date of grant. The exercise price may not be reduced. This shall include, without limitation, a repricing of the SAR as well as an SAR exchange program whereby the Participant agrees to cancel an existing SAR in exchange for an Option, SAR,other Award or cash.

(c)Payment of SAR Amount. Upon exercise of an SAR, a Participant shall be entitled to receive payment from the Company in an amount determined by multiplying:

(1)the difference between the Fair Market Value of a Share on the date of exercise over the exercise price; times

(2)the number of Shares with respect to which the SAR is exercised.

(d)Payment Upon Exercise of SAR. At the discretion of the Administrator, payment for an SAR may be in cash, Shares or a combination thereof.

(e)SAR Agreement. Each SAR grant shall be evidenced by an Award Agreement that shall specify the exercise price, the term of the SAR, the conditions of exercise, and such other terms and conditions as the Administrator, in its sole discretion, shall determine.

(f)Expiration of SARs. An SAR granted under the Plan shall expire upon the date determined by the Administrator, in its sole discretion, and set forth in the Award Agreement.

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(g)Termination of Relationship as a Service Provider. If a Participant ceases to be a Service Provider, other than upon the Participant’s death or Disability termination, the Participant may exercise his or her SAR within such period of time as is specified in the SAR Agreement to the extent that the SAR is vested on the date of termination (but in no event later than the expiration of the term of such SAR as set forth in the SAR Agreement). In the absence of a specified time in the SAR Agreement, the SAR shall remain exercisable for three (3) months following the Participant’s termination. If, on the date of termination, the Participant is not vested as to his or her entire SAR, the Shares covered by the unvested portion of the SAR shall revert to the Plan. If, after termination, the Participant does not exercise his or her SAR within the time specified by the Administrator, the SAR shall terminate, and the Shares covered by such SAR shall revert to the Plan.

(h)Disability. If a Participant ceases to be a Service Provider as a result of the Participant’s Disability, the Participant may exercise his or her SAR within such period of time as is specified in the SAR Agreement to the extent the SAR is vested on the date of termination (but in no event later than the expiration of the term of such SAR as set forth in the SAR Agreement). In the absence of a specified time in the SAR Agreement, the SAR shall remain exercisable for six (6) months following the Participant’s termination. If, on the date of termination, the Participant is not vested as to his or her entire SAR, the Shares covered by the unvested portion of the SAR shall revert to the Plan. If, after termination, the Participant does not exercise his or her SAR within the time specified herein, the SAR shall terminate, and the Shares covered by such SAR shall revert to the Plan.

(i)Death of Participant. If a Participant dies while a Service Provider, the SAR may be exercised following the Participant’s death within such period of time as is specified in the SAR Agreement (but in no event may the SAR be exercised later than the expiration of the term of such SAR as set forth in the SAR Agreement), by the personal representative of the Participant’s estate, provided such representative has been designated prior to Participant’s death in a form acceptable to the Administrator. If no such representative has been designated by the Participant, then such SAR may be exercised by the person(s) to whom the SAR is transferred pursuant to the Participant’s will or in accordance with the laws of descent and distribution. In the absence of a specified time in the SAR Agreement, the SAR shall remain exercisable for twelve (12) months following Participant’s death. If the SAR is not so exercised within the time specified herein, the SAR shall terminate, and the Shares covered by such SAR shall revert to the Plan.

10.    Restricted Stock.

(a)Grant of Restricted Stock. Subject to the terms and conditions of the Plan, Restricted Stock may be granted to Participants at any time as shall be determined by the Administrator, in its sole discretion. The Administrator shall have complete discretion to determine (i) the number of Shares subject to a Restricted Stock award granted to any Participant (provided that during any Fiscal Year, no Participant shall be granted more than 300,000 Shares of Restricted Stock); provided, however, that such limit shall be 750,000 Shares in the Participant’s first Fiscal Year of Company service, and (ii) the conditions that must be satisfied, which typically will be based principally or solely on continued provision of services but may include a performance-based component, upon which is conditioned the grant or vesting of Restricted Stock.

(b)Restricted Stock Units. Restricted Stock may be granted in the form of Restricted Stock or units to acquire Shares. Each such unit shall be the equivalent of one Share for purposes of determining the number of Shares subject to an Award. With respect to the units to acquire Shares, until the Shares are issued, no right to vote or receive dividends or any other rights as a stockholder shall exist.

(c)Other Terms. The Administrator, subject to the provisions of the Plan, shall have complete discretion to determine the terms and conditions of Restricted Stock granted under the Plan.

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Restricted Stock grants shall be subject to the terms, conditions, and restrictions determined by the Administrator at the time the stock is awarded. The Administrator may require the recipient to sign a Restricted Stock Award agreement as a condition of the award. Any certificates representing the Shares of stock awarded shall bear such legends as shall be determined by the Administrator.

(d)Restricted Stock Award Agreement. Each Restricted Stock grant shall be evidenced by an agreement that shall specify the purchase price (if any) and such other terms and conditions as the Administrator, in its sole discretion, shall determine; provided, however, that if the Restricted Stock grant has a purchase price, such purchase price must be paid no more than ten (10) years following the date of grant.

(e)Section 162(m) Performance Restrictions. For purposes of qualifying grants of Restricted Stock as "performance-based compensation" under Section 162(m) of the Code, the Administrator, in its discretion, may set restrictions based upon the achievement of Performance Goals. The Performance Goals shall be set by the Administrator on or before the latest date permissible to enable the Restricted Stock to qualify as "performance-based compensation" under Section 162(m) of the Code. In granting Restricted Stock which is intended to qualify under Section 162(m) of the Code, the Administrator shall follow any procedures determined by it from time to time to be necessary or appropriate to ensure qualification of the Restricted Stock under Section 162(m) of the Code (e.g., in determining the Performance Goals).

11.    Performance Shares.

(a)Grant of Performance Shares. Subject to the terms and conditions of the Plan, Performance Shares may be granted to Participants at any time as shall be determined by the Administrator, in its sole discretion. The Administrator shall have complete discretion to determine (i) the number of Shares subject to a Performance Share award granted to any Participant (provided that during any Fiscal Year, no Participant shall be granted more than 300,000 units of Performance Shares); provided, however, that such limit shall be 750,000 Shares in the Participant’s first Fiscal Year of Company service, and (ii) the conditions that must be satisfied, which typically will be based principally or solely on achievement of performance milestones but may include a service-based component, upon which is conditioned the grant or vesting of Performance Shares. Performance Shares shall be granted in the form of units to acquire Shares. Each such unit shall be the equivalent of one Share for purposes of determining the number of Shares subject to an Award. Until the Shares are issued, no right to vote or receive dividends or any other rights as a stockholder shall exist with respect to the units to acquire Shares.

(b)Other Terms. The Administrator, subject to the provisions of the Plan, shall have complete discretion to determine the terms and conditions of Performance Shares granted under the Plan. Performance Share grants shall be subject to the terms, conditions, and restrictions determined by the Administrator at the time the stock is awarded, which may include such performance-based milestones as are determined appropriate by the Administrator. The Administrator may require the recipient to sign a Performance Shares agreement as a condition of the award. Any certificates representing the Shares of stock awarded shall bear such legends as shall be determined by the Administrator.

(c)Performance Share Award Agreement. Each Performance Share grant shall be evidenced by an agreement that shall specify such other terms and conditions as the Administrator, in its sole discretion, shall determine.

(d)Section 162(m) Performance Restrictions. For purposes of qualifying grants of Performance Shares as "performance-based compensation" under Section 162(m) of the Code, the Administrator, in its discretion, may set restrictions based upon the achievement of Performance Goals. The Performance Goals shall be set by the Administrator on or before the latest date permissible to enable the

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Performance Shares to qualify as "performance-based compensation" under Section 162(m) of the Code. In granting Performance Shares which are intended to qualify under Section 162(m) of the Code, the Administrator shall follow any procedures determined by it from time to time to be necessary or appropriate to ensure qualification of the Performance Shares under Section 162(m) of the Code (e.g., in determining the Performance Goals).

12.    Performance Units.

(a)Grant of Performance Units. Performance Units are similar to Performance Shares, except that they shall be settled in a cash equivalent to the Fair Market Value of the underlying Shares, determined as of the vesting date. Subject to the terms and conditions of the Plan, Performance Units may be granted to Participants at any time and from time to time as shall be determined by the Administrator, in its sole discretion. The Administrator shall have complete discretion to determine the conditions that must be satisfied, which typically will be based principally or solely on achievement of performance milestones but may include a service-based component, upon which is conditioned the grant or vesting of Performance Units. Performance Units shall be granted in the form of units to acquire Shares. Each such unit shall be the cash equivalent of one Share of Common Stock. No right to vote or receive dividends or any other rights as a stockholder shall exist with respect to Performance Units or the cash payable thereunder.

(b)Number of Performance Units. The Administrator will have complete discretion in determining the number of Performance Units granted to any Participant, provided that during any Fiscal Year, no Participant shall receive Performance Units having an initial value greater than $1,500,000, provided, however, that such limit shall be $4,000,000 in the Participant’s first Fiscal Year of Company service.

(c)Other Terms. The Administrator, subject to the provisions of the Plan, shall have complete discretion to determine the terms and conditions of Performance Units granted under the Plan. Performance Unit grants shall be subject to the terms, conditions, and restrictions determined by the Administrator at the time the stock is awarded, which may include such performance-based milestones as are determined appropriate by the Administrator. The Administrator may require the recipient to sign a Performance Unit agreement as a condition of the award. Any certificates representing the Shares awarded shall bear such legends as shall be determined by the Administrator.

(d)Performance Unit Award Agreement. Each Performance Unit grant shall be evidenced by an agreement that shall specify such terms and conditions as the Administrator, in its sole discretion, shall determine.

(e)Section 162(m) Performance Restrictions. For purposes of qualifying grants of Performance Units as "performance-based compensation" under Section 162(m) of the Code, the Administrator, in its discretion, may set restrictions based upon the achievement of Performance Goals. The Performance Goals shall be set by the Administrator on or before the latest date permissible to enable the Performance Units to qualify as "performance-based compensation" under Section 162(m) of the Code. In granting Performance Units which are intended to qualify under Section 162(m) of the Code, the Administrator shall follow any procedures determined by it from time to time to be necessary or appropriate to ensure qualification of the Performance Units under Section 162(m) of the Code (e.g., in determining the Performance Goals).

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13.    Deferred Stock Units.

(a)Description. Deferred Stock Units shall consist of a Restricted Stock, Performance Share or Performance Unit Award that the Administrator, in its sole discretion permits to be paid out in installments or on a deferred basis, in accordance with rules and procedures established by the Administrator. Deferred Stock Units shall remain subject to the claims of the Company’s general creditors until distributed to the Participant.

(b)162(m) Limits. Deferred Stock Units shall be subject to the annual 162(m) limits applicable to the underlying Restricted Stock, Performance Share or Performance Unit Award.

14.    Death of Participant. In the event that a Participant dies while a Service Provider, then 100% of his or her Awards shall immediately vest.

15.    Leaves of Absence. Unless the Administrator provides otherwise or as otherwise required by Applicable Laws, vesting of Awards granted hereunder shall cease commencing on the first day of any unpaid leave of absence and shall only recommence upon return to active service.

16.    Misconduct. Should (i) the Participant’s service be terminated for misconduct (including, but not limited to, any act of dishonesty, willful misconduct, fraud or embezzlement), or (ii) the Participant makes any unauthorized use or disclosure of confidential information or trade secrets of the Company or any Parent or Subsidiary, then in any such event all outstanding Awards held by the Participant under the Plan shall terminate immediately and cease to be outstanding, including as to both vested and unvested Awards.

17.    Non-Employee Director Options.

(a)Initial Grants. Each Non-Employee Director who first becomes a Non-Employee Director on or after May 5, 2010 (excluding any Non-Employee Director who previously served on the Board), shall be automatically granted that number of Restricted Stock Units equal to $160,000 divided by the Fair Market Value, rounded down to the nearest whole Share (the "Initial RSU Grant"), as of the date that the individual first is appointed or elected as a Non-Employee Director. The Initial RSU Grant will vest in equal 25% annual installments on each of the four anniversaries of the tenth business day of the second month of the Company’s fiscal quarter in which the grant is made. All vesting of the Initial RSU Grant is contingent upon the Non-Employee Director maintaining continued status as a Non-Employee Director through the applicable vesting date.

(b)Annual Grants. On the date of the Company’s annual stockholders’ meeting, each Non-Employee Director who has served as a Non-Employee Director for at least three months on that date shall be automatically granted that number of Restricted Stock Units equal to $84,000 divided by the Fair Market Value, rounded down to the nearest whole Share (the "Annual RSU Grant"), provided that such Non-Employee Director has been elected by the stockholders to serve as a member of the Board at that annual meeting. The Annual RSU Grant will vest in equal 50% annual installments on each of the two anniversaries of the tenth day of the second month of the Company’s fiscal quarter in which the grant is made. All vesting of the Annual RSU Grant is contingent upon the Non-Employee Director maintaining continued status as a Non-Employee Director through the applicable vesting date.

(c)Additional Grant. On August 14, 2015 (the date of the Company’s 2015 annual meeting of stockholders), each Non-Employee Director who has served as a Non-Employee Director for at least five years on that date shall be automatically granted an additional grant of that number of Restricted

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Stock Units equal to $100,000 divided by the Fair Market Value, rounded down to the nearest whole Share, provided that such Non-Employee Director was elected by the stockholders to serve as a member of the Board at the annual meeting held August 14, 2015. The Restricted Stock Units subject to this grant will vest in equal 25% annual installments on each of the four anniversaries of the tenth day of the second month of the Company’s fiscal quarter in which the grant is made. Vesting of the additional grant is contingent upon the Non-Employee Director maintaining continued status as a Non-Employee Director through the applicable vesting date.

18.    Non-Transferability of Awards. Unless determined otherwise by the Administrator, an Award may not be sold, pledged, assigned, hypothecated, transferred, or disposed of in any manner other than by will or by the laws of descent or distribution and may be exercised, during the lifetime of the recipient, only by the recipient. In no event may an Award be transferred in exchange for consideration. If the Administrator makes an Award transferable, such Award shall contain such additional terms and conditions as the Administrator deems appropriate.

19.    Adjustments Upon Changes in Capitalization, Dissolution or Liquidation or Change of Control.

(a)Changes in Capitalization. Subject to any required action by the stockholders of the Company, the number of shares of Common Stock covered by each outstanding Award, the number of shares of Common Stock which have been authorized for issuance under the Plan but as to which no Awards have yet been granted or which have been returned to the Plan upon cancellation or expiration of an Award, as well as the price per share of Common Stock covered by each such outstanding Award and the 162(m) fiscal year share issuance limits under Sections 6(c), 10(a) and 11(a) shall be proportionately adjusted for any increase or decrease in the number of issued shares of Common Stock resulting from a stock split, reverse stock split, stock dividend, combination or reclassification of the Common Stock, or any other increase or decrease in the number of issued shares of Common Stock effected without receipt of consideration by the Company; provided, however, that any such change in capitalization shall not affect the number of shares awarded under the automatic grants to Non-Employee Directors described in Sections 17(a) and (b), and provided that conversion of any convertible securities of the Company shall not be deemed to have been "effected without receipt of consideration." Such adjustment shall be made by the Committee, whose determination in that respect shall be final, binding and conclusive. Except as expressly provided herein, no issuance by the Company of shares of stock of any class, or securities convertible into shares of stock of any class, shall affect, and no adjustment by reason thereof shall be made with respect to, the number or price of shares of Common Stock subject to an Award.

(b)Dissolution or Liquidation. In the event of the proposed dissolution or liquidation of the Company, the Administrator shall notify each Participant as soon as practicable prior to the effective date of such proposed transaction. The Administrator in its discretion may provide for a Participant to have the right to exercise his or her Option or SAR until ten (10) days prior to such transaction as to all of the Awarded Stock covered thereby, including Shares as to which the Award would not otherwise be exercisable. In addition, the Administrator may provide that any Company repurchase option or forfeiture rights applicable to any Award shall lapse 100%, and that any Award vesting shall accelerate 100%, provided the proposed dissolution or liquidation takes place at the time and in the manner contemplated. To the extent it has not been previously exercised (with respect to Options and SARs) or vested (with respect to other Awards), an Award will terminate immediately prior to the consummation of such proposed action.

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(c)Change of Control.

(1)Stock Options and SARs. In the event of a Change of Control, each outstanding Option and SAR shall be assumed or an equivalent option or SAR substituted by the successor corporation or a Parent or Subsidiary of the successor corporation. In the event that the successor corporation refuses to assume or substitute for the Option or SAR, the Participant shall fully vest in and have the right to exercise the Option or SAR as to all of the Awarded Stock, including Shares as to which it would not otherwise be vested or exercisable. If an Option or SAR becomes fully vested and exercisable in lieu of assumption or substitution in the event of a Change of Control, the Administrator shall notify the Participant in writing or electronically that the Option or SAR shall be fully vested and exercisable for a period of thirty (30) days from the date of such notice, and the Option or SAR shall terminate upon the expiration of such period. For the purposes of this paragraph, the Option or SAR shall be considered assumed if, following the Change of Control, the option or stock appreciation right confers the right to purchase or receive, for each Share of Awarded Stock subject to the Option or SAR immediately prior to the Change of Control, the consideration (whether stock, cash, or other securities or property) received in the Change of Control by holders of Common Stock for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the Change of Control is not solely common stock of the successor corporation or its Parent, the Administrator may, with the consent of the successor corporation, provide for the consideration to be received upon the exercise of the Option or SAR, for each Share of Awarded Stock subject to the Option or SAR, to be solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received by holders of Common Stock in the Change of Control.

(2)Restricted Stock, Performance Shares, Performance Units and Deferred Stock Units. In the event of a Change of Control, each outstanding Restricted Stock, Performance Share, Performance Unit and Deferred Stock Unit award shall be assumed or an equivalent Restricted Stock, Performance Share, Performance Unit and Deferred Stock Unit award substituted by the successor corporation or a Parent or Subsidiary of the successor corporation. In the event that the successor corporation refuses to assume or substitute for the Restricted Stock, Performance Share, Performance Unit or Deferred Stock Unit award, the Participant shall fully vest in the Restricted Stock, Performance Share, Performance Unit or Deferred Stock Unit including as to Shares (or with respect to Performance Units, the cash equivalent thereof) which would not otherwise be vested. For the purposes of this paragraph, a Restricted Stock, Performance Share, Performance Unit and Deferred Stock Unit award shall be considered assumed if, following the Change of Control, the award confers the right to purchase or receive, for each Share (or with respect to Performance Units, the cash equivalent thereof) subject to the Award immediately prior to the Change of Control, the consideration (whether stock, cash, or other securities or property) received in the Change of Control by holders of Common Stock for each Share held on the effective date of the transaction (and if holders were offered a choice of consideration, the type of consideration chosen by the holders of a majority of the outstanding Shares); provided, however, that if such consideration received in the Change of Control is not solely common stock of the successor corporation or its Parent, the Administrator may, with the consent of the successor corporation, provide for the consideration to be received, for each Share and each unit/right to acquire a Share subject to the Award, to be solely common stock of the successor corporation or its Parent equal in fair market value to the per share consideration received by holders of Common Stock in the Change of Control.

20.    Date of Grant. The date of grant of an Award shall be, for all purposes, the date on which the Administrator makes the determination granting such Award, or such other later date as is determined by the

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Administrator. Notice of the determination shall be provided to each Participant within a reasonable time after the date of such grant.

21.    Amendment and Termination of the Plan.

(a)Amendment and Termination. The Board may at any time amend, alter, suspend or terminate the Plan.

(b)Stockholder Approval. The Company shall obtain stockholder approval of any Plan amendment to the extent necessary and desirable to comply with Section 422 of the Code (or any successor rule or statute or other applicable law, rule or regulation, including the requirements of any exchange or quotation system on which the Common Stock is listed or quoted). Such stockholder approval, if required, shall be obtained in such a manner and to such a degree as is required by the applicable law, rule or regulation.

(c)Effect of Amendment or Termination. No amendment, alteration, suspension or termination of the Plan shall impair the rights of any Participant, unless mutually agreed otherwise between the Participant and the Administrator, which agreement must be in writing and signed by the Participant and the Company.

22.    Conditions Upon Issuance of Shares.

(a)Legal Compliance. Shares shall not be issued pursuant to the exercise of an Award unless the exercise of the Award or the issuance and delivery of such Shares (or with respect to Performance Units, the cash equivalent thereof) shall comply with Applicable Laws and shall be further subject to the approval of counsel for the Company with respect to such compliance.

(b)Investment Representations. As a condition to the exercise or receipt of an Award, the Company may require the person exercising or receiving such Award to represent and warrant at the time of any such exercise or receipt that the Shares are being purchased only for investment and without any present intention to sell or distribute such Shares if, in the opinion of counsel for the Company, such a representation is required.

23.    Liability of Company.

(a)Inability to Obtain Authority. The inability of the Company to obtain authority from any regulatory body having jurisdiction, which authority is deemed by the Company’s counsel to be necessary to the lawful issuance and sale of any Shares hereunder, shall relieve the Company of any liability in respect of the failure to issue or sell such Shares as to which such requisite authority shall not have been obtained.

(b)Grants Exceeding Allotted Shares. If the Awarded Stock covered by an Award exceeds, as of the date of grant, the number of Shares which may be issued under the Plan without additional stockholder approval, such Award shall be void with respect to such excess Awarded Stock, unless stockholder approval of an amendment sufficiently increasing the number of Shares subject to the Plan is timely obtained in accordance with Section 21(b) of the Plan.

24.    Reservation of Shares. The Company, during the term of this Plan, will at all times reserve and keep available such number of Shares as shall be sufficient to satisfy the requirements of the Plan.

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Steve Sanghi, certify that:

1. I have reviewed this Form 10-Q of Microchip Technology Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and l5d-l5(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	November 9, 2015	/s/ Steve Sanghi
		Steve Sanghi
		President and CEO

EX-31.2

Exhibit 31.2

CERTIFICATION

I, J. Eric Bjornholt, certify that:

1. I have reviewed this Form 10-Q of Microchip Technology Incorporated;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and l5d-l5(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's Board of Directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	November 9, 2015	/s/ J. Eric Bjornholt
		J. Eric Bjornholt
		Vice President and CFO

EX-32

Exhibit 32

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C.  SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Steve Sanghi, certify, pursuant to 18 U.S.C.  Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Microchip Technology Incorporated on Form 10-Q for the quarterly period ended September 30, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Microchip Technology Incorporated.

By:	/s/ Steve Sanghi
Name:	Steve Sanghi
Title:	President and Chief Executive Officer
Date:	November 9, 2015

I, J. Eric Bjornholt, certify, pursuant to 18 U.S.C.  Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of Microchip Technology Incorporated on Form 10-Q for the quarterly period ended September 30, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of Microchip Technology Incorporated.

By:	/s/ J. Eric Bjornholt
Name:	J. Eric Bjornholt
Title:	Vice President and Chief Financial Officer
Date:	November 9, 2015

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Accounts Receivable (Tables)

6 Months Ended

Sep. 30, 2015

Accounts Receivable, Net [Abstract]

Accounts Receivable Schedule

Accounts receivable consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Trade accounts receivable	$	280,257	$	269,844
Other	3,481		6,714
	283,738		276,558
Less allowance for doubtful accounts	2,675		2,621
	$	281,063	$	273,937

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Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment reporting information [Line Items]
Net Sales	$ 541,391	$ 546,243	$ 1,075,343	$ 1,075,119
Gross Profit	300,950	307,454	609,967	613,973
Semiconductor products [Member]
Segment reporting information [Line Items]
Net Sales	518,216	523,659	1,028,905	1,032,098
Gross Profit	277,775	284,870	563,529	570,952
Technology licensing [Member]
Segment reporting information [Line Items]
Net Sales	23,175	22,584	46,438	43,021
Gross Profit	$ 23,175	$ 22,584	$ 46,438	$ 43,021

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Basis of Presentation (Details)	Sep. 30, 2015
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage Of Outstanding Stock Of All Subsidiaries Owned	100.00%

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1.625% Senior Subordinated Convertible Debentures (Details)	3 Months Ended		6 Months Ended
	Sep. 30, 2015 USD ($) $ / shares	Mar. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) $ / shares	Sep. 30, 2014 USD ($)
Debt Instrument [Line Items]
Amortization of debt discount on convertible debentures			$ 23,746,000	$ 4,810,000
Senior Subordinated Convertible Debenture Due 2025 [Member]
Debt Instrument [Line Items]
Principal amount of senior subordinated convertible debentures	$ 1,725,000,000.0		$ 1,725,000,000.0
Interest rate of senior subordinated convertible debentures	1.625%		1.625%
Due date of senior subordinated convertible debentures			Feb. 15, 2025
Conversion rate, in shares, of senior subordinated convertible debt (in shares per $1,000)			14.5654
Principal amount of senior subordinated convertible debentures used as conversion unit			$ 1,000
Convertible Debt Instrument Initial Conversion Price Per Share | $ / shares	$ 68.66		$ 68.66
Debt Instrument, Convertible, Conversion Ratio			14.8954
Debt Instrument, Convertible, Conversion Price | $ / shares	$ 67.13		$ 67.13
Debt instrument, Convertible, Conversion Ratio Increase Option, Initial Ratio at Issuance			7.2827
Debt Instrument, Convertible, Conversion Ratio Increase Option, Adjusted for Dividends			7.4477
Debt Instrument, Convertible, Conversion Ratio Maximum Conversion Rate including increase Option			20.3915
Debt Instrument, Convertible, Conversion Ratio Maximum Conversion Rate including increase option, adjusted for dividends paid			20.8535
Proceeds from issuance of senior subordinated convertible debentures, net of issuance costs		$ 1,694,700,000
Senior subordinated convertible debenture debt issuance costs		30,300,000
Debt portion of convertible debt issuance costs		20,400,000
Equity portion of convertible debt issuance costs		9,900,000
Carrying value of equity component of the senior subordinated convertible debentures that were bifurcated into a liability and equity component	$ 564,900,000	564,900,000	$ 564,900,000
Estimated fair value of the liability component of the senior subordinated convertible debentures as of the issuance date	1,160,100,000		1,160,100,000
Debt discount of estimated fair value of liability component of senior subordinated convertible debentures at the issuance date	564,900,000		564,900,000
Amount of unamortized debt discount of debentures	538,200,000	$ 559,300,000	$ 538,200,000
Remaining period, in years, over which unamortized debt discount will be recognized as non-cash interest expense (in years)			9 years 4 months 15 days
Amortization of debt discount on convertible debentures	10,600,000		$ 21,100,000
Recognized amount of interest expense related to coupon on senior subordinated convertible debentures	$ 7,000,000		$ 14,000,000
Effective interest rate of senior convertible debentures			6.10%

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Investments Summary of Available for Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost	$ 2,046,735	$ 1,719,843
Available-for-sale, gross unrealized gain	2,638	15,011
Available-for-sale, gross unrealized loss	(1,997)	(474)
Available-for-sale, estimated fair value	2,047,376	1,734,380
Government agency bonds [Member]
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost	866,941	741,780
Available-for-sale, gross unrealized gain	1,304	676
Available-for-sale, gross unrealized loss	(51)	(200)
Available-for-sale, estimated fair value	868,194	742,256
Municipal bonds [Member]
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost	42,579	41,552
Available-for-sale, gross unrealized gain	11	155
Available-for-sale, gross unrealized loss	(516)	(9)
Available-for-sale, estimated fair value	42,074	41,698
Auction rate securities [Member]
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost	9,825	9,825
Available-for-sale, gross unrealized gain	0	0
Available-for-sale, gross unrealized loss	0	0
Available-for-sale, estimated fair value	9,825	9,825
Time deposits [Member]
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost		506
Available-for-sale, gross unrealized gain		0
Available-for-sale, gross unrealized loss		0
Available-for-sale, estimated fair value		506
Corporate bonds and debt [Member]
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost	1,127,390	924,818
Available-for-sale, gross unrealized gain	1,323	2,376
Available-for-sale, gross unrealized loss	(1,430)	(265)
Available-for-sale, estimated fair value	$ 1,127,283	926,929
Marketable equity securities [Member]
Summary of available-for-sale securities [Line Items]
Available-for-sale, adjusted cost		1,362
Available-for-sale, gross unrealized gain		11,804
Available-for-sale, gross unrealized loss		0
Available-for-sale, estimated fair value		$ 13,166

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Comprehensive Income (Loss) (Schedule of Reclassifications of Recognized Transactions out of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	$ (1,696)	$ (1,091)	$ 15,251	$ (1,078)
Income Tax Expense	10,942	1,334	21,837	(15,748)
Net income attributable to Microchip Technology	64,899	93,641	195,566	183,550
Accumulated Net Unrealized Investment Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other Nonoperating Income (Expense)	6	62	13,965	96
Income Tax Expense	0	0	0	(12)
Net income attributable to Microchip Technology	$ 6	$ 62	$ 13,965	$ 84

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Share-Based Compensation (Tables)

6 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-based compensation expense

The following table presents the details of the Company's share-based compensation expense (amounts in thousands):

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Cost of sales	$	2,398	(1)	$	2,640	(1)	$	4,055	(1)	$	4,695	(1)
Research and development	8,670			7,261			15,768			13,570
Selling, general and administrative	11,958			5,372			17,315			10,329
Pre-tax effect of share-based compensation	23,026			15,273			37,138			28,594
Income tax benefit	8,574			1,833			12,106			3,253
Net income effect of share-based compensation	$	14,452		$	13,440		$	25,032		$	25,341

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Dividends (Notes)

6 Months Ended

Sep. 30, 2015

Dividends [Abstract]

Dividends

Dividends

A quarterly cash dividend of $0.3580 per share was paid on September 25, 2015 in the aggregate amount of $72.7 million.  Through the first six months of fiscal 2016, cash dividends of $0.7155 per share have been paid in the aggregate amount of $145.0 million. A quarterly cash dividend of $0.3585 per share was declared on November 4, 2015 and will be paid on December 4, 2015 to stockholders of record as of November 20, 2015. The Company expects the December payment of its quarterly cash dividend to be approximately $72.9 million.

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Share-Based Compensation (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stock-based compensation expense [Line Items]
Allocated Share-based Compensation Expense		$ 23,026	$ 15,273	$ 37,138	$ 28,594
Income tax benefit		8,574	1,833	12,106	3,253
Net income effect of share-based compensation		14,452	13,440	25,032	25,341
Inventory [Member]
Stock-based compensation expense [Line Items]
Amount of share-based compensation expense capitalized to inventory		1,800	1,600	3,600	3,300
Cost of Sales [Member]
Stock-based compensation expense [Line Items]
Allocated Share-based Compensation Expense	[1]	2,398	2,640	4,055	4,695
Research and development [Member]
Stock-based compensation expense [Line Items]
Allocated Share-based Compensation Expense		8,670	7,261	15,768	13,570
Selling, General and Administrative Expenses [Member]
Stock-based compensation expense [Line Items]
Allocated Share-based Compensation Expense		$ 11,958	$ 5,372	$ 17,315	$ 10,329

[1] During the three and six months ended September 30, 2015, $1.8 million and $3.6 million, respectively, of share-based compensation expense was capitalized to inventory and $2.4 million and $4.1 million, respectively, of previously capitalized share-based compensation expense in inventory was sold. During the three and six months ended September 30, 2014, $1.6 million and $3.3 million, respectively, of share-based compensation expense was capitalized to inventory and $2.6 million and $4.7 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.

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Contingencies (Details) $ in Millions	Sep. 30, 2015 USD ($)
Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Loss contingencies, estimate of possible loss	$ 139

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Investments Investments AFS, Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale securities in a continuous unrealized loss position, less than twelve months	$ 566,341	$ 339,361
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, less than twelve months	(1,928)	(370)
Fair value of available-for-sale securities in a continuous unrealized loss position, greater than twelve months	36,828	48,963
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, greater than twelve months	(69)	(104)
Fair value of available-for-sale securities in a continuous unrealized loss position	603,169	388,324
Accumulated loss, available-for-sale securities in a continuous unrealized loss position	(1,997)	(474)
Government agency bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale securities in a continuous unrealized loss position, less than twelve months	140,775	162,948
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, less than twelve months	(51)	(142)
Fair value of available-for-sale securities in a continuous unrealized loss position, greater than twelve months	10,000	29,942
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, greater than twelve months	0	(58)
Fair value of available-for-sale securities in a continuous unrealized loss position	150,775	192,890
Accumulated loss, available-for-sale securities in a continuous unrealized loss position	(51)	(200)
Municipal bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale securities in a continuous unrealized loss position, less than twelve months	34,222	13,318
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, less than twelve months	(516)	(9)
Fair value of available-for-sale securities in a continuous unrealized loss position, greater than twelve months	0	0
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, greater than twelve months	0	0
Fair value of available-for-sale securities in a continuous unrealized loss position	34,222	13,318
Accumulated loss, available-for-sale securities in a continuous unrealized loss position	(516)	(9)
Corporate bonds and debt [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair value of available-for-sale securities in a continuous unrealized loss position, less than twelve months	391,344	163,095
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, less than twelve months	(1,361)	(219)
Fair value of available-for-sale securities in a continuous unrealized loss position, greater than twelve months	26,828	19,021
Accumulated loss, available-for-sale securities in a continuous unrealized loss position, greater than twelve months	(69)	(46)
Fair value of available-for-sale securities in a continuous unrealized loss position	418,172	182,116
Accumulated loss, available-for-sale securities in a continuous unrealized loss position	$ (1,430)	$ (265)

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Derivative Instruments Gain (Loss) (Details) - Interest Rate Swap [Member] - Other Nonoperating Income (Expense) [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2015
Derivative [Line Items]
Gain (Loss) on Senior Subordinated Convertible Debentures	$ (17,573)	$ (2,642)
Gain (Loss) on Interest Rate Swap	$ 17,005	$ 2,034

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Stock Repurchase (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Sep. 30, 2015	May. 15, 2015
Equity [Abstract]
Stock repurchase program, number of shares authorized to be repurchased		20.0
Repurchase of common stock	8.6
Value of shares repurchased	$ 363.8
Treasury stock, number of shares held	24.4

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Comprehensive Income (Loss) (Schedule of Changes in the Components of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Changes in the components of AOCI
Accumulated other comprehensive income (loss) at March 31, 2015			$ 2,044,654
Other comprehensive income (loss) attributable to Microchip Technology	$ 2,076	$ (8,746)	(13,895)	$ (5,708)
Accumulated other comprehensive income (loss) at September 30, 2015	2,129,381		2,129,381
AOCI Attributable to Parent [Member]
Changes in the components of AOCI
Accumulated other comprehensive income (loss) at March 31, 2015			11,076
Other comprehensive income before reclassifications			70
Amounts reclassified from accumulated other comprehensive income (loss)			(13,965)
Other comprehensive income (loss) attributable to Microchip Technology			(13,895)
Purchase of shares from noncontrolling interest			(276)
Accumulated other comprehensive income (loss) at September 30, 2015	(3,095)		(3,095)
Unrealized holding gains (losses) on available-for-sale securities
Changes in the components of AOCI
Accumulated other comprehensive income (loss) at March 31, 2015			14,537
Other comprehensive income before reclassifications			70
Amounts reclassified from accumulated other comprehensive income (loss)			(13,965)
Other comprehensive income (loss) attributable to Microchip Technology			(13,895)
Accumulated other comprehensive income (loss) at September 30, 2015	642		642
Minimum pension liability
Changes in the components of AOCI
Accumulated other comprehensive income (loss) at March 31, 2015			13
Other comprehensive income before reclassifications			0
Amounts reclassified from accumulated other comprehensive income (loss)			0
Other comprehensive income (loss) attributable to Microchip Technology			0
Accumulated other comprehensive income (loss) at September 30, 2015	13		13
Foreign Currency
Changes in the components of AOCI
Accumulated other comprehensive income (loss) at March 31, 2015			(3,474)
Other comprehensive income before reclassifications			0
Amounts reclassified from accumulated other comprehensive income (loss)			0
Other comprehensive income (loss) attributable to Microchip Technology			0
Purchase of shares from noncontrolling interest			(276)
Accumulated other comprehensive income (loss) at September 30, 2015	$ (3,750)		$ (3,750)

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2.125% Junior subordinated convertible debentures (Details)	3 Months Ended		6 Months Ended
	Sep. 30, 2015 USD ($) $ / shares	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) $ / shares	Sep. 30, 2014 USD ($)	Mar. 31, 2015 USD ($)
Debt Instrument [Line Items]
Amortization of Debt Discount (Premium)			$ 23,746,000	$ 4,810,000
Junior subordinated convertible debentures due 2037 [Member]
Debt Instrument [Line Items]
Principal amount of junior subordinated convertible debentures	$ 575,000,000.0		$ 575,000,000.0
Interest rate of junior subordinated convertible debentures	2.125%		2.125%
Due date of junior subordinated convertible debentures			Dec. 15, 2037
Conversion rate, in shares, of junior subordinated convertible debt (in shares per $1,000)			29.2783
Principal amount of junior subordinated convertible debentures used as conversion unit			$ 1,000
Convertible Debt Instrument Initial Conversion Price Per Share | $ / shares	$ 34.16		$ 34.16
Debt Instrument, Convertible, Conversion Ratio			40.4715
Debt Instrument, Convertible, Conversion Price | $ / shares	$ 24.71		$ 24.71
Debt Instrument, Convertible, If-converted Value in Excess of Principal			$ 427,800,000
Long-term Debt, Contingent Payment of Interest, Percentage			0.50%
Carrying value of equity component of the debentures that were bifurcated into a liability and equity component	$ 411,200,000		$ 411,200,000		$ 411,200,000
Estimated fair value of liability component of debentures at issuance date	163,800,000		163,800,000
Debt discount of estimated fair value of liability component of debentures	411,200,000		411,200,000
Amount of unamortized debt discount of debentures	381,100,000		$ 381,100,000		$ 383,700,000
Remaining period, in years, over which unamortized debt discount will be recognized as non-cash interest expense (in years)			22 years 3 months
Amortization of Debt Discount (Premium)	1,300,000	$ 2,400,000	$ 2,600,000	4,800,000
Recognized amount of interest expense related to debentures	$ 3,100,000	$ 6,100,000	$ 6,100,000	$ 12,200,000
Effective interest rate of junior subordinated convertible debentures			9.10%
Minimum [Member] | Junior subordinated convertible debentures due 2037 [Member]
Debt Instrument [Line Items]
Long-term Debt, Contingent Payment of Interest, Percentage			0.25%
Debt Instrument, Convertible, Trading Price | $ / shares	$ 400		$ 400
Maximum [Member] | Junior subordinated convertible debentures due 2037 [Member]
Debt Instrument [Line Items]
Long-term Debt, Contingent Payment of Interest, Percentage			0.50%
Debt Instrument, Convertible, Trading Price | $ / shares	$ 1,500		$ 1,500

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2.125% Junior subordinated convertible debentures (Notes)

6 Months Ended

Sep. 30, 2015

Junior Subordinated Convertible Debentures Due 2037 Member

Debt Instrument [Line Items]

Junior subordinated convertible debentures

2.125% Junior Subordinated Convertible Debentures

The Company's $575.0 million principal amount of 2.125% junior subordinated convertible debentures due December 15, 2037, are subordinated in right of payment to any future senior debt of the Company and are effectively subordinated in right of payment to the liabilities of the Company's subsidiaries.  The debentures are convertible, subject to certain conditions, into cash, shares of the Company's common stock or a combination thereof, at the Company's election, at an initial conversion rate of 29.2783 shares of common stock per $1,000 principal amount of debentures, representing an initial conversion price of approximately $34.16 per share of common stock.  As of September 30, 2015, the holders of the debentures had the right to convert their debentures between October 1, 2015 and December 31, 2015 because for at least 20 trading days during the 30 consecutive trading day period ending on September 30, 2015, the Company's common stock had a last reported sale price greater than 130% of the conversion price. As of September 30, 2015, a holder could realize more economic value by selling its debentures in the over the counter market than from converting its debentures. As a result of cash dividends paid since the issuance of the debentures, the conversion rate has been adjusted to 40.4715 shares of common stock per $1,000 of principal amount of debentures, representing a conversion price of approximately $24.71 per share of common stock. The if-converted value of the debentures exceed the principal amount by $427.8 million at September 30, 2015. The debentures include a contingent interest mechanism that begins in December 2017. The terms of the contingent interest include a 0.25% interest rate if the debentures are trading at less than $400 and 0.5% if the debentures are trading at greater than $1,500. Based on the current trading price of the debentures, the contingent interest rate in calendar year 2017 would be 0.5%.

As the debentures can be settled in cash upon conversion, for accounting purposes, the debentures were bifurcated into a liability component and an equity component, which are both initially recorded at fair value.  The carrying value of the equity component at September 30, 2015 and at March 31, 2015 was $411.2 million.  The estimated fair value of the liability component of the debentures at the issuance date was $163.8 million, resulting in a debt discount of $411.2 million.  The unamortized debt discount was $381.1 million at September 30, 2015 and $383.7 million at March 31, 2015.  The remaining period over which the unamortized debt discount will be recognized as non-cash interest expense is 22.25 years.  In the three and six months ended September 30, 2015, the Company recognized $1.3 million and $2.6 million, respectively, in non-cash interest expense related to the amortization of the debt discount.  In the three and six months ended September 30, 2014, the Company recognized $2.4 million and $4.8 million, respectively, in non-cash interest expense related to the amortization of the debt discount.  The Company recognized $3.1 million and $6.1 million of interest expense related to the 2.125% coupon on the debentures in the three and six months ended September 30, 2015, respectively, compared to $6.1 million and $12.2 million in the three and six months ended September 30, 2014, respectively. The Company acquired $575.0 million in aggregate principal amount of its 2.125% junior subordinated convertible debentures in the March 2015 quarter which is the primary reason for the reductions of interest expense in the three and six months ended September 30, 2015 compared to the prior year periods. The effective interest rate of the debentures is 9.1%.

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Business Acquisitions (Schedule of Purchase Price Allocation) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Sep. 30, 2015	Aug. 03, 2015	Mar. 31, 2015
Business Acquisition [Line Items]
Goodwill		$ 1,008,720		$ 571,271
Micrel Incorporated [Member]
Business Acquisition [Line Items]
Cash and cash equivalents			$ 99,196
Accounts receivable, net			12,296
Inventories			78,967
Prepaid expenses and other current assets			10,548
Property, plant and equipment, net			38,566
Goodwill			437,060
Purchased intangible assets			274,800
Other assets			4,268
Total assets acquired			955,701
Accounts payable			(11,068)
Other current liabilities			(30,241)
Long-term income tax payable			(9,239)
Deferred tax liability			(88,796)
Other long-term liabilities			(127)
Total liabilities assumed			(139,471)
Net assets acquired			$ 816,230
ISSC Technologies Corporation [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	$ 15,120			15,120
Short-term investments	27,063			27,063
Accounts receivable, net	8,792			8,792
Inventories	16,542			16,542
Prepaid expenses and other current assets	2,501			2,501
Property, plant and equipment, net	2,637			2,637
Goodwill	154,788			154,399
Purchased intangible assets	147,800			147,800
Other assets	1,370			1,370
Total assets acquired	376,613			376,224
Accounts payable	(9,860)			(9,860)
Other current liabilities	(16,535)			(16,535)
Long-term income tax payable	(4,791)			(4,402)
Deferred tax liability	(25,126)			(25,126)
Other long-term liabilities	(245)			(245)
Total liabilities assumed	(56,557)			(56,168)
Net assets acquired	320,056			320,056
Less: noncontrolling interest	(52,467)			(52,467)
Net assets acquired	267,589			267,589
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments [Abstract]
Goodwill	389
Total assets acquired	389
Long-term income tax payable	(389)
Total liabilities assumed	$ (389)
Supertex Inc.
Business Acquisition [Line Items]
Cash and cash equivalents				14,790
Short-term investments				140,984
Accounts receivable, net				7,047
Inventories				27,630
Prepaid expenses				1,493
Deferred tax assets				2,456
Other current assets				12,625
Property, plant and equipment, net				15,679
Goodwill				143,160
Purchased intangible assets				89,600
Other assets				325
Total assets acquired				455,789
Accounts payable				(8,481)
Other current liabilities				(19,224)
Long-term income tax payable				(3,796)
Deferred tax liability				(32,511)
Total liabilities assumed				(64,012)
Net assets acquired				$ 391,777

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Noncontrolling Interests (Tables)

6 Months Ended

Sep. 30, 2015

Noncontrolling Interest [Abstract]

Schedule of changes in the components of noncontrolling interest

The following table presents the changes in the components of noncontrolling interests for the six months ended September 30, 2015 (amounts in thousands):

	Noncontrolling Interests
Balance at March 31, 2015	$	16,372
Net loss attributable to noncontrolling interests	(207		)
Purchase of additional interests	(16,165		)
Balance at September 30, 2015	$	—

Schedule of changes in the Company's ownership interest in ISSC

The following table presents the effect of changes in the Company's ownership interest in ISSC on the Company's stockholders' equity for the six months ended September 30, 2015 (amounts in thousands):

	Six Months Ended
	September 30, 2015
Net income attributable to Microchip Technology stockholders	$	195,566
Decrease in paid-in capital for purchase of additional interests	(1,610		)
Transfers from noncontrolling interest	(1,610		)
Change from net income attributable to Microchip Technology stockholders and transfers from noncontrolling interest	$	193,956

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Derivative Instruments Fair Value (Details) - Interest Rate Swap [Member] - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative, Notional Amount	$ 431,300
Designated as Hedging Instrument [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value	$ 10,963	$ 8,928

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Fair Value Measurements (Tables)

6 Months Ended

Sep. 30, 2015

Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets measured at fair value on a recurring basis at September 30, 2015 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	217,281	$	—	$	—	$	217,281
Deposit accounts	—		321,797		—		321,797
Short-term investments:
Corporate bonds and debt	—		737,194		—		737,194
Government agency bonds	—		717,419		—		717,419
Municipal bonds	—		7,853		—		7,853
Long-term investments:
Corporate bonds and debt	—		383,899		6,190		390,089
Government agency bonds	—		150,775		—		150,775
Municipal bonds	—		34,221		—		34,221
Auction rate securities	—		—		9,825		9,825
Derivative assets	—		10,963		—		10,963
Total assets measured at fair value	$	217,281	$	2,364,121	$	16,015	$	2,597,417

Assets measured at fair value on a recurring basis at March 31, 2015 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	279,833	$	—	$	—	$	279,833
Deposit accounts	—		327,982		—		327,982
Short-term investments:
Marketable equity securities	13,166		—		—		13,166
Corporate bonds and debt	—		756,664		—		756,664
Time deposits (1)	—		506		—		506
Government agency bonds	—		549,737		—		549,737
Municipal bonds	—		30,981		—		30,981
Long-term investments:
Corporate bonds and debt	—		164,075		6,190		170,265
Government agency bonds	—		192,519		—		192,519
Municipal bonds	—		10,717		—		10,717
Auction rate securities	—		—		9,825		9,825
Derivative assets	—		8,928		—		8,928
Total assets measured at fair value	$	292,999	$	2,042,109	$	16,015	$	2,351,123

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Business Acquisitions (Schedule of Proforma Results) (Details) - Micrel Incorporated [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Business Acquisition [Line Items]
Net sales	$ 574,432	$ 613,722	$ 1,163,066	$ 1,184,937
Net income	$ 83,868	$ 70,440	$ 202,037	$ 125,387
Basic earnings per share	$ 0.41	$ 0.35	$ 0.99	$ 0.63
Diluted earnings per share	$ 0.39	$ 0.31	$ 0.93	$ 0.56

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Intangible Assets, by Major Class (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Aug. 03, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		$ 1,227,631		$ 1,227,631		$ 949,067
Accumulated Amortization		(525,248)		(525,248)		(444,650)
Net Amount		702,383		702,383		504,417
In-process technology reaching technological feasibility and reclassified				28,300
Amortization of Intangible Assets		44,900	$ 46,500	80,600	$ 84,200
Impairment of Intangible Assets		530	200	530	556
Projected Amortization Expense
Future Amortization Expense, Remainder of Fiscal Year		98,775		98,775
Future Amortization Expense, Year Two		137,051		137,051
Future Amortization Expense, Year Three		110,462		110,462
Future Amortization Expense, Year Four		93,561		93,561
Future Amortization Expense, Year Five		75,320		75,320
Core and developed technology [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		778,835		778,835		569,942
Accumulated Amortization		(258,503)		(258,503)		(209,676)
Net Amount		$ 520,332		520,332		360,266
Useful Life		10 years
Minimum expected useful life of finite lived intangible assets (in years)		10 years
Customer-related [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		$ 334,369		334,369		263,969
Accumulated Amortization		(222,817)		(222,817)		(193,483)
Net Amount		$ 111,552		111,552		70,486
Useful Life		5 years
Minimum expected useful life of finite lived intangible assets (in years)		5 years
Trademarks and trade names [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		$ 15,730		15,730		15,730
Accumulated Amortization		(10,569)		(10,569)		(9,529)
Net Amount		5,161		5,161		6,201
Backlog [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		31,804		31,804		26,304
Accumulated Amortization		(27,679)		(27,679)		(26,304)
Net Amount		$ 4,125		4,125		0
Useful Life		1 year
Minimum expected useful life of finite lived intangible assets (in years)		1 year
In-process technology [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		$ 60,914		60,914		67,142
Accumulated Amortization		0		0		0
Net Amount		60,914		60,914		67,142
Distribution rights [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		5,579		5,579		5,580
Accumulated Amortization		(5,280)		(5,280)		(5,258)
Net Amount		299		299		322
Covenants not to compete [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Gross Amount		400		400		400
Accumulated Amortization		(400)		(400)		(400)
Net Amount		0		$ 0		$ 0
Minimum [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Useful Life				1 year
Minimum expected useful life of finite lived intangible assets (in years)				1 year
Maximum [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Useful Life				15 years
Minimum expected useful life of finite lived intangible assets (in years)				15 years
Micrel Incorporated [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Purchased Intangible Assets	$ 274,800
Micrel Incorporated [Member] | Core and developed technology [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Purchased Intangible Assets	$ 176,800	176,800
Useful Life	10 years
Minimum expected useful life of finite lived intangible assets (in years)	10 years
Micrel Incorporated [Member] | Customer-related [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Purchased Intangible Assets	$ 70,400	70,400
Useful Life	5 years
Minimum expected useful life of finite lived intangible assets (in years)	5 years
Micrel Incorporated [Member] | Backlog [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Purchased Intangible Assets	$ 5,500	5,500
Useful Life	1 year
Minimum expected useful life of finite lived intangible assets (in years)	1 year
Micrel Incorporated [Member] | In-process technology [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Purchased Intangible Assets	$ 22,100	22,100
Useful Life	10 years
Minimum expected useful life of finite lived intangible assets (in years)	10 years
Cost of Sales [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Amortization of Intangible Assets		900	1,000	$ 1,700	2,000
Operating Expense [Member]
Finite-Lived Intangible Assets, Net [Abstract]
Amortization of Intangible Assets		$ 44,000	$ 45,500	$ 78,900	$ 82,200

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Accounts Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable amounts	$ 283,738	$ 276,558
Less allowance for doubtful accounts	2,675	2,621
Accounts receivable, net	281,063	273,937
Trade Accounts Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable amounts	280,257	269,844
Other Receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivable amounts	$ 3,481	$ 6,714

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Net income per common share (Tables)

6 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table sets forth the computation of basic and diluted net income per common share attributable to Microchip Technology stockholders (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net income attributable to Microchip Technology	$	64,899	$	93,641	$	195,566	$	183,550
Weighted average common shares outstanding	204,275		200,629		203,254		200,408
Dilutive effect of stock options and RSUs	3,065		3,767		3,228		3,780
Dilutive effect of 2037 junior subordinated convertible debentures	9,759		20,888		10,451		20,718
Weighted average common and potential common shares outstanding	217,099		225,284		216,933		224,906
Basic net income per common share attributable to Microchip Technology stockholders	$	0.32	$	0.47	$	0.96	$	0.92
Diluted net income per common share attributable to Microchip Technology stockholders	$	0.30	$	0.42	$	0.90	$	0.82

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Basis of Presentation (Notes)

6 Months Ended

Sep. 30, 2015

Basis of Presentation [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

Basis of Presentation

The accompanying unaudited condensed consolidated financial statements include the accounts of Microchip Technology Incorporated and its majority-owned subsidiaries (the Company).  The Company owned 100% of the outstanding stock in all of its subsidiaries as of September 30, 2015. All intercompany balances and transactions have been eliminated in consolidation.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (US GAAP), pursuant to the rules and regulations of the Securities and Exchange Commission (the SEC).  The information furnished herein reflects all adjustments which are, in the opinion of management, of a normal recurring nature and necessary for a fair statement of the results for the interim periods reported. Certain information and footnote disclosures normally included in audited consolidated financial statements have been condensed or omitted pursuant to such SEC rules and regulations.  It is suggested that these condensed consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in the Company's Annual Report on Form 10-K for the fiscal year ended March 31, 2015.  The results of operations for the six months ended September 30, 2015 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2016 or for any other period.

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Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Inventory [Line Items]
Raw materials	$ 15,135	$ 13,263
Work in process	248,277	197,565
Finished goods	100,348	68,628
Inventory, Net	363,760	$ 279,456
Micrel Incorporated [Member]
Inventory [Line Items]
Acquired inventory fair value adjustment, remaining balance	$ 37,200

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Intangible Assets and Goodwill (Tables)

6 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible assets consist of the following (amounts in thousands):

	September 30, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	778,835	$	(258,503	)	$	520,332
Customer-related	334,369		(222,817		)	111,552
Trademarks and trade names	15,730		(10,569		)	5,161
Backlog	31,804		(27,679		)	4,125
In-process technology	60,914		—			60,914
Distribution rights	5,579		(5,280		)	299
Covenants not to compete	400		(400		)	—
	$	1,227,631	$	(525,248	)	$	702,383

	March 31, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	569,942	$	(209,676	)	$	360,266
Customer-related	263,969		(193,483		)	70,486
Trademarks and trade names	15,730		(9,529		)	6,201
Backlog	26,304		(26,304		)	—
In-process technology	67,142		—			67,142
Distribution rights	5,580		(5,258		)	322
Covenants not to compete	400		(400		)	—
	$	949,067	$	(444,650	)	$	504,417

Projected Amortization Expense

The following is an expected amortization schedule for the intangible assets for the remainder of fiscal 2016 through fiscal 2020, absent any future acquisitions or impairment charges (amounts in thousands):

Year ending March 31,	Projected Amortization Expense
2016	$98,775
2017	137,051
2018	110,462
2019	93,561
2020	75,320

Goodwill Activity

Goodwill activity for the six months ended September 30, 2015 was as follows (amounts in thousands):

	Semiconductor Products Reporting Unit		Technology Licensing Reporting Unit
Balance at March 31, 2015	$	552,071	$	19,200
Additions due to the acquisition of Micrel	437,060		—
Adjustments due to acquisition of ISSC	389		—
Balance at September 30, 2015	$	989,520	$	19,200

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Comprehensive Income (Loss) (Notes)

6 Months Ended

Sep. 30, 2015

Equity [Abstract]

Comprehensive Income

Comprehensive Income (Loss)

The following table presents the changes in the components of accumulated other comprehensive income (AOCI) for the six months ended September 30, 2015 (amounts in thousands):

	Unrealized holding gains (losses) available-for-sale securities			Minimum pension liability		Foreign Currency			Total
Accumulated other comprehensive income (loss) at March 31, 2015	$	14,537		$	13	$	(3,474	)	$	11,076
Other comprehensive income before reclassifications	70			—		—			70
Amounts reclassified from accumulated other comprehensive income (loss)	(13,965		)	—		—			(13,965		)
Net other comprehensive loss	(13,895		)	—		—			(13,895		)
Purchase of shares from noncontrolling interest	—			—		(276		)	(276		)
Accumulated other comprehensive income (loss) at September 30, 2015	$	642		$	13	$	(3,750	)	$	(3,095	)

The table below details where reclassifications of realized transactions out of AOCI are recorded on the condensed consolidated statements of income (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
Description of AOCI Component	2015		2014		2015		2014			Related Statement  of Income Line
Unrealized gains on available-for-sale securities	$	6	$	62	$	13,965	$	96		Other income
Taxes	—		—		—		(12		)	Provision for income taxes
Reclassification of realized transactions, net of taxes	$	6	$	62	$	13,965	$	84		Net income

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Derivative Instruments (Notes)

6 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments

Derivative Instruments

Freestanding Derivative Forward Contracts

Foreign Currency Exchange Rate Risk

The Company has international operations and is thus subject to foreign currency rate fluctuations.  To help manage the risk of changes in foreign currency rates, the Company periodically enters into derivative contracts comprised of foreign currency forward contracts to hedge its asset and liability foreign currency exposure and a portion of its foreign currency operating expenses.  Approximately 99% of the Company's sales are U.S. dollar denominated.  To date, the exposure related to foreign exchange rate volatility has not been material to the Company's operating results.  As of September 30, 2015 and March 31, 2015, the Company had no foreign currency forward contracts outstanding. The Company recognized an immaterial amount of net realized gains and losses on foreign currency forward contracts in each of the three and six months ended September 30, 2015 and 2014. Gains and losses from changes in the fair value of these foreign currency forward contracts and foreign currency exchange rate fluctuations are credited or charged to Other Income (Expense) on the condensed consolidated statements of income. The Company does not apply hedge accounting to its foreign currency derivative instruments.

Fair Value Hedges

For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivatives as well as the offsetting gain or loss on the hedged item attributable to the hedged risk are recognized in earnings. Interest rate derivative instruments designated as fair value hedges are designed to manage the exposure to interest rate movements and to reduce borrowing costs by converting fixed-rate debt into floating-rate debt. Under these agreements, the Company agrees to exchange, at specified intervals, the difference between the fixed and floating interest amounts calculated by reference to an agreed-upon notional principal amount.

In March 2015, the Company entered into ten-year fixed-to-floating interest rate swap agreements designated as fair value hedges of the changes in fair value of a portion of the Company's fixed-rate 1.625% senior subordinated convertible debentures due to changes in the LIBOR swap rate, the designated benchmark interest rate. The Company pays variable interest equal to the three-month LIBOR minus 53.6 basis points, and it receives a fixed interest rate of 1.625%. The notional amount of these contracts outstanding at September 30, 2015 and at March 31, 2015 was $431.3 million, representing 25% of the principal amount of the senior subordinated convertible debentures.

The following table summarizes the fair value amounts of derivative instruments reported on the condensed consolidated balance sheets in other assets (amounts in thousands):

Derivatives designated as hedging instruments	September 30, 2015		March 31, 2015
Interest rate contracts	$	10,963	$	8,928

The following table summarizes the location and amount of the gain or loss on the hedged item attributable to the changes in the LIBOR swap rate and the offsetting gain or loss on the related interest rate swap agreements for the three and six months ended September 30, 2015. The difference represents hedge ineffectiveness (amounts in thousands):

	Three Months Ended					Six Months Ended
	September 30, 2015					September 30, 2015
Income Statement Classification	Gain (Loss) on Senior Subordinated Convertible Debentures			Gain (Loss) on Interest Rate Swap		Gain (Loss) on Senior Subordinated Convertible Debentures			Gain (Loss) on Interest Rate Swap
Other Income (Expense)	$	(17,573	)	$	17,005	$	(2,642	)	$	2,034

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Investments AFS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015
Investments [Abstract]
Amount of short-term investments	$ 1,462,466		$ 1,462,466		$ 1,351,054
Amount of long-term investments	584,910		584,910		$ 383,326
Proceeds for sale of available-for-sale securities	$ 46,700	$ 26,700	135,800	$ 170,700
Realized gain on available-for-sale securities			13,959	$ 0
Amount of corporate debt securities with no contractual maturity excluded from estimated fair value of available-for-sale securities	$ 6,200		$ 6,200

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Derivative Instruments (Tables)

6 Months Ended

Sep. 30, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of location and fair value amount of derivative instruments

The following table summarizes the fair value amounts of derivative instruments reported on the condensed consolidated balance sheets in other assets (amounts in thousands):

Derivatives designated as hedging instruments	September 30, 2015		March 31, 2015
Interest rate contracts	$	10,963	$	8,928

Summary of location and amount of the gain (loss)

The following table summarizes the location and amount of the gain or loss on the hedged item attributable to the changes in the LIBOR swap rate and the offsetting gain or loss on the related interest rate swap agreements for the three and six months ended September 30, 2015. The difference represents hedge ineffectiveness (amounts in thousands):

	Three Months Ended					Six Months Ended
	September 30, 2015					September 30, 2015
Income Statement Classification	Gain (Loss) on Senior Subordinated Convertible Debentures			Gain (Loss) on Interest Rate Swap		Gain (Loss) on Senior Subordinated Convertible Debentures			Gain (Loss) on Interest Rate Swap
Other Income (Expense)	$	(17,573	)	$	17,005	$	(2,642	)	$	2,034

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Share-Based Compensation (Notes)

6 Months Ended

Sep. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Equity incentive plans

Share-Based Compensation

The following table presents the details of the Company's share-based compensation expense (amounts in thousands):

	Three Months Ended						Six Months Ended
	September 30,						September 30,
	2015			2014			2015			2014
Cost of sales	$	2,398	(1)	$	2,640	(1)	$	4,055	(1)	$	4,695	(1)
Research and development	8,670			7,261			15,768			13,570
Selling, general and administrative	11,958			5,372			17,315			10,329
Pre-tax effect of share-based compensation	23,026			15,273			37,138			28,594
Income tax benefit	8,574			1,833			12,106			3,253
Net income effect of share-based compensation	$	14,452		$	13,440		$	25,032		$	25,341

(1) During the three and six months ended September 30, 2015, $1.8 million and $3.6 million, respectively, of share-based compensation expense was capitalized to inventory and $2.4 million and $4.1 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.  During the three and six months ended September 30, 2014, $1.6 million and $3.3 million, respectively, of share-based compensation expense was capitalized to inventory and $2.6 million and $4.7 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.

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Net income per common share (Notes)

6 Months Ended

Sep. 30, 2015

Earnings Per Share [Abstract]

Net income per common share

Net Income Per Common Share Attributable to Microchip Technology Stockholders

The following table sets forth the computation of basic and diluted net income per common share attributable to Microchip Technology stockholders (in thousands, except per share amounts):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net income attributable to Microchip Technology	$	64,899	$	93,641	$	195,566	$	183,550
Weighted average common shares outstanding	204,275		200,629		203,254		200,408
Dilutive effect of stock options and RSUs	3,065		3,767		3,228		3,780
Dilutive effect of 2037 junior subordinated convertible debentures	9,759		20,888		10,451		20,718
Weighted average common and potential common shares outstanding	217,099		225,284		216,933		224,906
Basic net income per common share attributable to Microchip Technology stockholders	$	0.32	$	0.47	$	0.96	$	0.92
Diluted net income per common share attributable to Microchip Technology stockholders	$	0.30	$	0.42	$	0.90	$	0.82

The Company computed basic earnings per common share attributable to its stockholders using net income available to common stockholders and the weighted average number of common shares outstanding during the period. The Company computed diluted earnings per common share attributable to its stockholders using net income available to stockholders and the weighted average number of common shares outstanding plus potentially dilutive common shares outstanding during the period.

Potentially dilutive common shares from employee equity incentive plans are determined by applying the treasury stock method to the assumed exercise of outstanding stock options and the assumed vesting of outstanding RSUs.

Diluted net income per common share attributable to stockholders for the three and six months ended September 30, 2015 includes 9,759,393 shares and 10,451,083 shares, respectively, issuable upon the exchange of the Company's 2.125% junior subordinated convertible debentures due December 15, 2037 (see Note 17). Diluted net income per common share attributable to stockholders for the three and six months ended September 30, 2014 includes 20,887,608 shares and 20,717,720 shares, respectively, issuable upon the exchange of the Company's 2.125% junior subordinated convertible debentures due December 15, 2037.  The debentures have no impact on diluted net income per common share unless the average price of the Company's common stock exceeds the conversion price because the principal amount of the debentures will be settled in cash upon conversion.  Prior to conversion, the Company will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued when the Company's common stock price exceeds the conversion price using the treasury stock method.  The weighted average conversion price per share used in calculating the dilutive effect of the convertible debt for the three and six-month periods ended September 30, 2015 was $24.87 and $24.94, respectively. The weighted average conversion price per share used in calculating the dilutive effect of the convertible debt for the three and six-month periods ended September 30, 2014 was $25.58 and $25.67, respectively

There were no shares issuable upon the exchange of the Company's 1.625% senior subordinated convertible debentures due February 15, 2025 (see Note 16). The debentures have no impact on diluted net income per common share unless the average price of the Company's common stock exceeds the conversion price because the principal amount of the debentures will be settled in cash upon conversion.  Prior to conversion, the Company will include, in the diluted net income per common share calculation, the effect of the additional shares that may be issued when the Company's common stock price exceeds the conversion price using the treasury stock method.  The weighted average conversion price per share used in calculating the dilutive effect of the convertible debt for the three and six-month periods ended September 30, 2015 was $67.55 and $67.75, respectively.

Weighted average common shares exclude the effect of option shares which are not dilutive.  For the three and six months ended September 30, 2015, the number of option shares that were antidilutive was 182,848 and 47,296, respectively. There were no antidilutive option shares for the three and six months ended September 30, 2014.

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities
Net income	$ 195,359	$ 181,947
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	131,484	131,809
Deferred income taxes	(35,999)	(4,497)
Share-based compensation expense related to equity incentive plans	37,138	28,594
Excess tax benefit from share-based compensation	(407)	(982)
Amortization of debt discount on convertible debentures	23,746	4,810
Amortization of debt issuance costs	1,920	1,088
Losses on equity method investments	233	67
Gain on sale of assets	(860)	0
Impairment of intangible assets	530	556
Realized gain on available-for-sale investment	(13,959)	0
Realized gain on equity method investment	(2,225)	0
Accretion (Amortization) of Discounts and Premiums, Investments	4,732	5,066
Special charges	511	0
Changes In Operating Assets And Liabilities
Decrease (increase) in accounts receivable	5,170	(29,429)
(Increase) decrease in inventories	(4,597)	32,052
Increase in deferred income on shipments to distributors	13,492	11,787
Decrease in accounts payable and accrued liabilities	(31,443)	(15,817)
Change in other assets and liabilities	6,589	10,783
Net cash provided by operating activities	331,414	357,834
Cash flows from investing activities
Purchases of available-for-sale investments	(1,112,089)	(350,598)
Sales and maturities of available-for-sale investments	795,771	547,037
Sale of equity method investment	2,667	0
Acquisition of Micrel, net of cash acquired	(343,928)	0
Acquisition of ISSC, net of cash acquired	0	(252,469)
Purchase of additional controlling interest in ISSC	(18,051)	(1,765)
Acquisition of Supertex, net of cash acquired	0	(375,365)
Investments in other assets	(2,981)	(3,659)
Proceeds from sale of assets	14,296	0
Capital expenditures	(63,554)	(83,372)
Net cash used in investing activities	(727,869)	(520,191)
Cash flows from financing activities:
Repayments of revolving loan under credit facility	(190,000)	(308,500)
Proceeds from borrowings on revolving loan under credit facility	1,024,500	632,875
Repayments of long-term borrowings	0	(8,750)
Deferred financing costs	(406)	0
Payment of cash dividends	(145,016)	(142,644)
Repurchase of common stock	(363,829)	0
Proceeds from sale of common stock	13,520	14,035
Tax payments related to shares withheld for vested restricted stock units	(11,124)	(10,306)
Capital lease payments	(334)	(298)
Excess tax benefit from share-based compensation	407	982
Net cash provided by financing activities	327,718	177,394
Effect of foreign exchange rate changes on cash and cash equivalents	0	(201)
Net (decrease) increase in cash and cash equivalents	(68,737)	14,836
Cash and cash equivalents at beginning of period	607,815	466,603
Cash and cash equivalents at end of period	$ 539,078	$ 481,439

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Stock Repurchase (Notes)

6 Months Ended

Sep. 30, 2015

Equity [Abstract]

Treasury Stock [Text Block]

Stock Repurchase

In May 2015, the Company's Board of Directors authorized the repurchase of up to 20 million shares of its common stock in the open market or in privately negotiated transactions. During the three and six months ended September 30, 2015, the Company purchased 8.6 million shares of its common stock for a total of $363.8 million. As of September 30, 2015, approximately 24.4 million shares remained as treasury shares with the balance of the shares being used to fund share issuance requirements under the Company's equity incentive plans. There is no expiration date associated with this repurchase program.

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Inventories (Tables)

6 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Components of inventories

The components of inventories consist of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Raw materials	$	15,135	$	13,263
Work in process	248,277		197,565
Finished goods	100,348		68,628
	$	363,760	$	279,456

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Special Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Unusual or Infrequent Item [Member]
Unusual or Infrequent Item [Line Items]
Other Nonrecurring Expense	$ 6.6	$ 0.8	$ 8.2	$ 1.1

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Credit facility (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015	Feb. 04, 2015	Jun. 27, 2013
Line of Credit Facility [Line Items]
Interest expense	$ 25,644,000	$ 14,019,000	$ 49,696,000	$ 27,697,000
Credit Agreement Maturity June 27, 2018 [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing amount							$ 2,000,000,000.0
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing amount						$ 2,555,000,000.000
Increase option amount						$ 300,000,000
Interest expense	$ 4,900,000	$ 5,100,000	$ 8,500,000	$ 10,100,000
Short-term Debt, Weighted Average Interest Rate	1.44%		1.44%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member]
Line of Credit Facility [Line Items]
Amount of credit agreement borrowings outstanding	$ 1,296,500,000		$ 1,296,500,000		$ 462,000,000
Period for leverage ratio to determine interest rate spread			preceding four fiscal quarters
Interest rate spread on overdue principal in event of default (percentage)						2.00%
Interest rate spread on overdue amounts in event of default (percentage)						2.00%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member] | Debt Instrument Interest Rate Option1 [Member]
Line of Credit Facility [Line Items]
Description of variable rate basis			the highest of JPMorgan Chase Bank, N.A.'s prime rate, the federal funds rate plus a margin equal to 0.50% and the adjusted LIBOR rate for a 1-month interest period plus a margin equal to 1.00%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member] | Debt Instrument Interest Rate Option1 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Spread on variable rate (percentage)			0.25%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member] | Debt Instrument Interest Rate Option1 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Spread on variable rate (percentage)			1.25%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member] | Debt Instrument Interest Rate Option 2 [Member]
Line of Credit Facility [Line Items]
Description of variable rate basis			adjusted LIBOR rate (based on one, two, three, or six-month interest periods)
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member] | Debt Instrument Interest Rate Option 2 [Member] | Minimum [Member]
Line of Credit Facility [Line Items]
Spread on variable rate (percentage)			1.25%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Revolving credit facility [Member] | Debt Instrument Interest Rate Option 2 [Member] | Maximum [Member]
Line of Credit Facility [Line Items]
Spread on variable rate (percentage)			2.25%
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Foreign Line of Credit [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing amount						$ 125,000,000
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Standby Letters of Credit [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing amount						25,000,000
February 2015 Amended Credit Facility with Maturity Dates of June 2018 and February 2020 [Member] | Line of Credit Facility Swingline Loan Sublimit [Member]
Line of Credit Facility [Line Items]
Credit agreement maximum borrowing amount						$ 25,000,000

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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
ASSETS
Cash and cash equivalents	$ 539,078	$ 607,815
Short-term investments	1,462,466	1,351,054
Accounts receivable, net	281,063	273,937
Inventories	363,760	279,456
Prepaid expenses	38,553	34,717
Deferred tax assets	69,343	71,045
Assets held for sale	0	13,989
Other current assets	24,624	32,604
Total current assets	2,778,887	2,664,617
Property, plant and equipment, net	631,600	581,572
Long-term investments	584,910	383,326
Goodwill	1,008,720	571,271
Intangible assets, net	702,383	504,417
Other assets	79,809	75,510
Total assets	5,786,309	4,780,713
LIABILITIES AND EQUITY
Accounts payable	72,362	86,866
Accrued liabilities	119,452	100,978
Deferred Income on Shipments to Distributors	179,962	166,128
Total current liabilities	371,776	353,972
Long-term line of credit	1,296,452	461,952
Senior convertible debentures	1,197,792	1,174,036
Junior convertible debentures	193,630	190,870
Long-term income tax payable	107,459	114,336
Long-term deferred tax liability	448,777	381,192
Other long-term liabilities	41,042	43,329
Stockholders' equity:
Preferred stock, $0.001 par value; authorized 5,000,000 shares; no shares issued or outstanding	0	0
Common stock, $0.001 par value; authorized 450,000,000 shares; 227,416,789 shares issued and 203,052,463 shares outstanding at September 30, 2015; 218,789,994 shares issued and 202,080,306 shares outstanding at March 31, 2015	203	202
Additional paid-in capital	1,382,818	999,515
Common stock held in treasury: 24,364,326 shares at September 30, 2015; 16,709,688 shares at March 31, 2015	(850,635)	(515,679)
Accumulated other comprehensive (loss) income	(3,095)	11,076
Retained earnings	1,600,090	1,549,540
Microchip Technology stockholders' equity	2,129,381	2,044,654
Noncontrolling interests	0	16,372
Total equity	2,129,381	2,061,026
Total liabilities and equity	$ 5,786,309	$ 4,780,713

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Comprehensive Income (Loss) (Tables)

6 Months Ended

Sep. 30, 2015

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table presents the changes in the components of accumulated other comprehensive income (AOCI) for the six months ended September 30, 2015 (amounts in thousands):

	Unrealized holding gains (losses) available-for-sale securities			Minimum pension liability		Foreign Currency			Total
Accumulated other comprehensive income (loss) at March 31, 2015	$	14,537		$	13	$	(3,474	)	$	11,076
Other comprehensive income before reclassifications	70			—		—			70
Amounts reclassified from accumulated other comprehensive income (loss)	(13,965		)	—		—			(13,965		)
Net other comprehensive loss	(13,895		)	—		—			(13,895		)
Purchase of shares from noncontrolling interest	—			—		(276		)	(276		)
Accumulated other comprehensive income (loss) at September 30, 2015	$	642		$	13	$	(3,750	)	$	(3,095	)

Reclassification out of Accumulated Other Comprehensive Income

The table below details where reclassifications of realized transactions out of AOCI are recorded on the condensed consolidated statements of income (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
Description of AOCI Component	2015		2014		2015		2014			Related Statement  of Income Line
Unrealized gains on available-for-sale securities	$	6	$	62	$	13,965	$	96		Other income
Taxes	—		—		—		(12		)	Provision for income taxes
Reclassification of realized transactions, net of taxes	$	6	$	62	$	13,965	$	84		Net income

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net income	$ 64,899	$ 92,038	$ 195,359	$ 181,947
Less: Net loss attributable to noncontrolling interests	0	1,603	207	1,603
Net income attributable to Microchip Technology	64,899	93,641	195,566	183,550
Unrealized holding gains (losses), net of tax effect of $0, $0, $0 and $12, respectively	2,082	(3,465)	70	(405)
Reclassification of realized transactions, net of tax effect of $0, $0, $0 and $12, respectively	(6)	(62)	(13,965)	(84)
Change in net foreign currency translation adjustment	0	(6,234)	0	(6,234)
Other comprehensive income (loss), net of taxes	2,076	(9,761)	(13,895)	(6,723)
Less: Other comprehensive loss attributable to noncontrolling interests	0	1,015	0	1,015
Other comprehensive income (loss) attributable to Microchip Technology	2,076	(8,746)	(13,895)	(5,708)
Comprehensive income	66,975	82,277	181,464	175,224
Less: Comprehensive loss attributable to noncontrolling interests	0	2,618	207	2,618
Comprehensive income attributable to Microchip Technology	$ 66,975	$ 84,895	$ 181,671	$ 177,842

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Fair Value Measurements, Measured on Recurring Basis (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	$ 2,047,376	$ 1,734,380
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets measured at fair value	2,597,417	2,351,123
Marketable equity securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		13,166
Corporate bonds and debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	1,127,283	926,929
Time deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		506
Government agency bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	868,194	742,256
Municipal bonds [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	42,074	41,698
Insurance sector auction rate securities [Member]
Available-for-sale Securities, Other Disclosure Items [Abstract]
Value of auction rate securities for which recent auctions were unsuccessful	9,800
Auction Rate Securities Par Value	$ 22,400
Insurance sector auction rate securities [Member] | Minimum [Member]
Available-for-sale Securities, Other Disclosure Items [Abstract]
Discount rate	2.00%
Liquidity risk premium (percentage)	9.10%
Anticipated liquidity horizon	7 years
Insurance sector auction rate securities [Member] | Maximum [Member]
Available-for-sale Securities, Other Disclosure Items [Abstract]
Discount rate	2.50%
Liquidity risk premium (percentage)	29.50%
Anticipated liquidity horizon	10 years
Auction rate securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	$ 9,825	9,825
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets measured at fair value	217,281	292,999
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets measured at fair value	2,364,121	2,042,109
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Total assets measured at fair value	16,015	16,015
Cash Equivalents [Member] | Money market mutual funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	217,281	279,833
Cash Equivalents [Member] | Deposit accounts [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	321,797	327,982
Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | Money market mutual funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	217,281	279,833
Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | Deposit accounts [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	0	0
Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | Money market mutual funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	0	0
Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | Deposit accounts [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	321,797	327,982
Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | Money market mutual funds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	0	0
Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | Deposit accounts [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Cash and cash equivalents	0	0
Short-term Investments [Member] | Marketable equity securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		13,166
Short-term Investments [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	737,194	756,664
Short-term Investments [Member] | Time deposits [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		506
Short-term Investments [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	717,419	549,737
Short-term Investments [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	7,853	30,981
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Marketable equity securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		13,166
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Time deposits [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		0
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Marketable equity securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		0
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	737,194	756,664
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Time deposits [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		506
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	717,419	549,737
Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	7,853	30,981
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Marketable equity securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Time deposits [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value		0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	390,089	170,265
Other Long-term Investments [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	150,775	192,519
Other Long-term Investments [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	34,221	10,717
Other Long-term Investments [Member] | Auction rate securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	9,825	9,825
Other Long-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 1 [Member] | Auction rate securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	383,899	164,075
Other Long-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	150,775	192,519
Other Long-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	34,221	10,717
Other Long-term Investments [Member] | Fair Value, Inputs, Level 2 [Member] | Auction rate securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Corporate bonds and debt [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	6,190	6,190
Other Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Government agency bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Municipal bonds [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	0	0
Other Long-term Investments [Member] | Fair Value, Inputs, Level 3 [Member] | Auction rate securities [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Available-for-sale, estimated fair value	9,825	9,825
Other Noncurrent Assets [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset, Fair Value	10,963	8,928
Other Noncurrent Assets [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset, Fair Value	0	0
Other Noncurrent Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset, Fair Value	10,963	8,928
Other Noncurrent Assets [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivative Asset, Fair Value	$ 0	$ 0

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Segment Information (Tables)

6 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Net sales and gross profit for each segment

The following table represents net sales and gross profit for each segment for the three and six months ended September 30, 2015 (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30, 2015				September 30, 2015
	Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	518,216	$	277,775	$	1,028,905	$	563,529
Technology licensing	23,175		23,175		46,438		46,438
	$	541,391	$	300,950	$	1,075,343	$	609,967

The following table represents net sales and gross profit for each segment for the three and six months ended September 30, 2014 (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30, 2014				September 30, 2014
	Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	523,659	$	284,870	$	1,032,098	$	570,952
Technology licensing	22,584		22,584		43,021		43,021
	$	546,243	$	307,454	$	1,075,119	$	613,973

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Noncontrolling Interest Roll Forward (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at March 31, 2015			$ 16,372
Net loss attributable to noncontrolling interests	$ 0	$ (1,603)	(207)	$ (1,603)
Purchase of additional interests			(16,165)
Balance at September 30, 2015	$ 0		$ 0

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Intangible Assets and Goodwill (Notes)

6 Months Ended

Sep. 30, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets and Goodwill

Intangible Assets and Goodwill

Intangible assets consist of the following (amounts in thousands):

	September 30, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	778,835	$	(258,503	)	$	520,332
Customer-related	334,369		(222,817		)	111,552
Trademarks and trade names	15,730		(10,569		)	5,161
Backlog	31,804		(27,679		)	4,125
In-process technology	60,914		—			60,914
Distribution rights	5,579		(5,280		)	299
Covenants not to compete	400		(400		)	—
	$	1,227,631	$	(525,248	)	$	702,383

	March 31, 2015
	Gross Amount		Accumulated Amortization			Net Amount
Core and developed technology	$	569,942	$	(209,676	)	$	360,266
Customer-related	263,969		(193,483		)	70,486
Trademarks and trade names	15,730		(9,529		)	6,201
Backlog	26,304		(26,304		)	—
In-process technology	67,142		—			67,142
Distribution rights	5,580		(5,258		)	322
Covenants not to compete	400		(400		)	—
	$	949,067	$	(444,650	)	$	504,417

The Company amortizes intangible assets over their expected useful lives, which range between 1 and 15 years.  During the three months ended September 30, 2015, as a result of the Micrel transaction, the Company acquired $176.8 million of core and developed technology which has a weighted average amortization period of 10 years, $70.4 million of customer-related intangible assets which has a weighted average amortization period of 5 years, $5.5 million of intangible assets related to backlog with an amortization period of 1 year and $22.1 million of in-process technology which will begin amortization once the technology reaches technological feasibility. During the six months ended September 30, 2015, $28.3 million of in-process technology reached technological feasibility and was reclassified as core and developed technology and began being amortized over its estimated useful life. The following is an expected amortization schedule for the intangible assets for the remainder of fiscal 2016 through fiscal 2020, absent any future acquisitions or impairment charges (amounts in thousands):

Year ending March 31,	Projected Amortization Expense
2016	$98,775
2017	137,051
2018	110,462
2019	93,561
2020	75,320

Amortization expense attributed to intangible assets was $44.9 million and $80.6 million for the three and six months ended September 30, 2015, respectively. Amortization expense attributed to intangible assets was $46.5 million and $84.2 million for the three and six months ended September 30, 2014, respectively.  In the three and six months ended September 30, 2015, approximately $0.9 million and $1.7 million was charged to cost of sales, respectively, and approximately $44.0 million and $78.9 million was charged to operating expenses, respectively.  In the three and six months ended September 30, 2014,

approximately $1.0 million and $2.0 million was charged to cost of sales, respectively, and approximately $45.5 million and $82.2 million was charged to operating expenses, respectively.  The Company recognized impairment charges of $0.5 million in each of the three and six months ended September 30, 2015. The Company recognized impairment charges of $0.2 million and $0.6 million the three and six months ended September 30, 2014, respectively.

Goodwill activity for the six months ended September 30, 2015 was as follows (amounts in thousands):

	Semiconductor Products Reporting Unit		Technology Licensing Reporting Unit
Balance at March 31, 2015	$	552,071	$	19,200
Additions due to the acquisition of Micrel	437,060		—
Adjustments due to acquisition of ISSC	389		—
Balance at September 30, 2015	$	989,520	$	19,200

At March 31, 2015, the Company applied a qualitative goodwill impairment screen to its two reporting units, concluding it was not more likely than not that goodwill was impaired. Through September 30, 2015, the Company has never recorded an impairment charge against its goodwill balance.

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Investments (Tables)

6 Months Ended

Sep. 30, 2015

Investments [Abstract]

Summary of available-for-sale securities

The following is a summary of available-for-sale securities at September 30, 2015 (amounts in thousands):

	Available-for-sale Securities
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Government agency bonds	$	866,941	$	1,304	$	(51	)	$	868,194
Municipal bonds	42,579		11		(516		)	42,074
Auction rate securities	9,825		—		—			9,825
Corporate bonds and debt	1,127,390		1,323		(1,430		)	1,127,283
	$	2,046,735	$	2,638	$	(1,997	)	$	2,047,376

The following is a summary of available-for-sale securities at March 31, 2015 (amounts in thousands):

	Available-for-sale Securities
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Government agency bonds	$	741,780	$	676	$	(200	)	$	742,256
Municipal bonds	41,552		155		(9		)	41,698
Auction rate securities	9,825		—		—			9,825
Time deposits (1)	506		—		—			506
Corporate bonds and debt	924,818		2,376		(265		)	926,929
Marketable equity securities	1,362		11,804		—			13,166
	$	1,719,843	$	15,011	$	(474	)	$	1,734,380

Summary of available-for-sale securities in a continuous unrealized loss position

The following tables show all investments in an unrealized loss position for which an other-than-temporary impairment has not been recognized and the related gross unrealized losses and fair value, aggregated by investment category and the length of time that the individual securities have been in a continuous unrealized loss position (amounts in thousands):

	September 30, 2015
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government agency bonds	$	140,775	$	(51	)	$	10,000	$	—		$	150,775	$	(51	)
Municipal bonds	34,222		(516		)	—		—			34,222		(516		)
Corporate bonds and debt	391,344		(1,361		)	26,828		(69		)	418,172		(1,430		)
	$	566,341	$	(1,928	)	$	36,828	$	(69	)	$	603,169	$	(1,997	)

	March 31, 2015
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government agency bonds	$	162,948	$	(142	)	$	29,942	$	(58	)	$	192,890	$	(200	)
Municipal bonds	13,318		(9		)	—		—			13,318		(9		)
Corporate bonds and debt	163,095		(219		)	19,021		(46		)	182,116		(265		)
	$	339,361	$	(370	)	$	48,963	$	(104	)	$	388,324	$	(474	)

Summary of amortized cost and estimated fair value of available-for-sale securities, by maturity

The amortized cost and estimated fair value of the available-for-sale securities at September 30, 2015, by contractual maturity, excluding corporate debt of $6.2 million, which has no contractual maturity, are shown below (amounts in thousands).  Expected maturities can differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties, and the Company views its available-for-sale securities as available for current operations.

	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Available-for-sale
Due in one year or less	$	377,682	$	650	$	(42	)	$	378,290
Due after one year and through five years	1,520,303		1,942		(1,954		)	1,520,291
Due after five years and through ten years	132,735		46		(1		)	132,780
Due after ten years	9,825		—		—			9,825
	$	2,040,545	$	2,638	$	(1,997	)	$	2,041,186

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1.625% Senior Subordinated Convertible Debentures (Notes)

6 Months Ended

Sep. 30, 2015

Senior Subordinated Convertible Debenture Due 2025 [Member]

Debt Instrument [Line Items]

Senior subordinated convertible debentures

1.625% Senior Subordinated Convertible Debentures

In February 2015, the Company issued $1,725.0 million principal amount of 1.625% senior subordinated convertible debentures due February 15, 2025. The debentures are subordinated to the Company's senior debt, including amounts borrowed under its amended credit facility, but are senior to the Company's outstanding 2.125% junior subordinated convertible debentures. The debentures are convertible, subject to certain conditions, into cash, shares of the Company's common stock or a combination thereof, at the Company's election, at an initial base conversion rate of 14.5654 shares of common stock per $1,000 principal amount of debentures, representing an initial base conversion price of approximately $68.66 per share of common stock.  As a result of cash dividends paid since the issuance of the debentures, the conversion rate has been adjusted to 14.8954 shares of common stock per $1,000 of principal amount of debentures, representing a base conversion price of approximately $67.13 per share of common stock. In addition, if at the time of conversion the applicable price of the Company's common stock exceeds the base conversion price, the conversion rate will be increased by up to an additional 7.2827 shares of common stock per $1,000 principal amount of debentures, as determined pursuant to a specified formula. As a result of cash dividends paid since the issuance of the debentures, the maximum number of additional shares that may be issued if the stock price of the Company's common stock exceeds the base conversion price has been adjusted to 7.4477 shares of common stock per $1,000 principal amount of debentures. However, in no event will the conversion rate exceed 20.3915 (adjusted to 20.8535 as a result of cash dividends paid since the issuance of the debentures) shares of common stock per $1,000 principal amount of debentures. The Company received net proceeds of approximately $1,694.7 million after deduction of issuance costs of approximately $30.3 million. The $30.3 million in issuance costs was split between a debt component of $20.4 million and an equity component of $9.9 million.  The $20.4 million in debt issuance costs is recorded in other assets and is being amortized using the effective interest method over the term of the debentures.

Prior to the close of business on the business day immediately preceding November 15, 2024, the debentures will be convertible at the option of the debenture holders only upon the satisfaction of specified conditions and during certain periods. Thereafter until close of business on the second scheduled trading day immediately preceding February 15, 2025, the debentures will be convertible at the option of the debenture holders at any time regardless of these conditions. Accrued and unpaid interest will be considered fully paid upon settlement of shares.

As the debentures can be settled in cash upon conversion, for accounting purposes, the debentures were bifurcated into a liability component and an equity component, which are both initially recorded at fair value.  The carrying value of the equity component at September 30, 2015 and March 31, 2015 was $564.9 million.  The estimated fair value of the liability component of the debentures at the issuance date was $1,160.1 million resulting in a debt discount of $564.9 million.  The unamortized debt discount was $538.2 million at September 30, 2015 and $559.3 million at March 31, 2015.  The remaining period over which the unamortized debt discount will be recognized as non-cash interest expense is 9.37 years.  In the three and six months ended September 30, 2015, the Company recognized $10.6 million and $21.1 million, respectively, in non-cash interest expense related to the amortization of the debt discount.  The Company recognized $7.0 million and $14.0 million of interest expense related to the 1.625% coupon on the debentures in the three and six months ended September 30, 2015, respectively. The effective interest rate of the debentures is 6.1%.

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Goodwill by Reporting Segment (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2015 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 571,271
Goodwill, ending balance	1,008,720
ISSC Technologies Corporation [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	154,399
Semiconductor products [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	552,071
Goodwill, ending balance	989,520
Semiconductor products [Member] | ISSC Technologies Corporation [Member]
Goodwill [Roll Forward]
Additions due to business combination	389
Semiconductor products [Member] | Micrel Incorporated [Member]
Goodwill [Roll Forward]
Additions due to business combination	437,060
Technology licensing [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	19,200
Goodwill, ending balance	19,200
Technology licensing [Member] | ISSC Technologies Corporation [Member]
Goodwill [Roll Forward]
Additions due to business combination	0
Technology licensing [Member] | Micrel Incorporated [Member]
Goodwill [Roll Forward]
Additions due to business combination	$ 0

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (PARENTHETICAL) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$ 0	$ 0	$ 0	$ 12

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CONDENSED CONSOLIDATED BALANCE SHEETS CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - $ / shares	Sep. 30, 2015	Mar. 31, 2015
Preferred Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares Authorized	450,000,000	450,000,000
Common Stock, Shares, Issued	227,416,789	218,789,994
Common Stock, Shares, Outstanding	203,052,463	202,080,306
Treasury Stock, Shares	24,364,326	16,709,688

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Accounts Receivable (Notes)

6 Months Ended

Sep. 30, 2015

Accounts Receivable, Net [Abstract]

Accounts Receivable

Accounts Receivable

Accounts receivable consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Trade accounts receivable	$	280,257	$	269,844
Other	3,481		6,714
	283,738		276,558
Less allowance for doubtful accounts	2,675		2,621
	$	281,063	$	273,937

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Document and Entity Information Document - shares	6 Months Ended
	Sep. 30, 2015	Oct. 28, 2015
DEI Information [Abstract]
Entity Registrant Name	MICROCHIP TECHNOLOGY INC
Entity Central Index Key	0000827054
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Sep. 30, 2015
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		203,122,333

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Inventories (Notes)

6 Months Ended

Sep. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories

The components of inventories consist of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Raw materials	$	15,135	$	13,263
Work in process	248,277		197,565
Finished goods	100,348		68,628
	$	363,760	$	279,456

Inventories are valued at the lower of cost or market using the first-in, first-out method. Inventory impairment charges establish a new cost basis for inventory and charges are not subsequently reversed to income even if circumstances later suggest that increased carrying amounts are recoverable. The inventory balance at September 30, 2015 includes a $37.2 million acquired inventory fair value adjustment resulting from the acquisition of Micrel.

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Net income per common share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income attributable to Microchip Technology	$ 64,899	$ 93,641	$ 195,566	$ 183,550
Weighted average common shares outstanding	204,275,000	200,629,000	203,254,000	200,408,000
Dilutive effect of stock options and RSUs	3,065,000	3,767,000	3,228,000	3,780,000
Dilutive effect of 2037 junior subordinated convertible debentures	9,759,393	20,887,608	10,451,083	20,717,720
Weighted average common and potential common shares outstanding	217,099,000	225,284,000	216,933,000	224,906,000
Basic net income per common share attributable to Microchip Technology stockholders	$ 0.32	$ 0.47	$ 0.96	$ 0.92
Diluted net income per common share attributable to Microchip Technology stockholders	$ 0.30	$ 0.42	$ 0.90	$ 0.82
Number of antidilutive option shares (in shares)	182,848	0	47,296	0
Junior Subordinated Convertible Debentures Due 2037 Member
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted average conversion price per share used in calculating dilutive effect of convertible debt (amount per share)	$ 24.87	$ 25.58	$ 24.94	$ 25.67
Senior Subordinated Convertible Debenture Due 2025 [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Weighted average conversion price per share used in calculating dilutive effect of convertible debt (amount per share)	$ 67.55		$ 67.75

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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement
Net sales		$ 541,391	$ 546,243	$ 1,075,343	$ 1,075,119
Cost of sales (1)	[1]	240,441	238,789	465,376	461,146
Gross profit		300,950	307,454	609,967	613,973
Operating expenses:
Research and development (1)	[1]	95,256	88,814	179,936	173,184
Selling, general and administrative (1)	[1]	80,258	71,114	147,107	140,369
Amortization of acquired intangible assets		43,840	45,433	78,452	82,077
Special charges, net		6,648	775	8,205	1,079
Total operating expenses		226,002	206,136	413,700	396,709
Operating income		74,948	101,318	196,267	217,264
Losses on equity method investments		(56)	(35)	(233)	(67)
Other income (expense):
Interest income		6,405	4,531	11,933	9,273
Interest expense		(25,644)	(14,019)	(49,696)	(27,697)
Other (expense) income, net		(1,696)	(1,091)	15,251	(1,078)
Income before income taxes		53,957	90,704	173,522	197,695
Income tax (benefit) provision		(10,942)	(1,334)	(21,837)	15,748
Net income		64,899	92,038	195,359	181,947
Less: Net loss attributable to noncontrolling interests		0	1,603	207	1,603
Net income attributable to Microchip Technology		$ 64,899	$ 93,641	$ 195,566	$ 183,550
Basic net income per common share attributable to Microchip Technology stockholders		$ 0.32	$ 0.47	$ 0.96	$ 0.92
Diluted net income per common share attributable to Microchip Technology stockholders		0.30	0.42	0.90	0.82
Dividends declared per common share		$ 0.3580	$ 0.3560	$ 0.7155	$ 0.7115
Basic common shares outstanding		204,275	200,629	203,254	200,408
Diluted common shares outstanding		217,099	225,284	216,933	224,906
Allocated Share-based Compensation Expense		$ 23,026	$ 15,273	$ 37,138	$ 28,594
Cost of Sales [Member]
Other income (expense):
Allocated Share-based Compensation Expense	[2]	2,398	2,640	4,055	4,695
Research and Development Expense [Member]
Other income (expense):
Allocated Share-based Compensation Expense		8,670	7,261	15,768	13,570
Selling, General and Administrative Expenses [Member]
Other income (expense):
Allocated Share-based Compensation Expense		$ 11,958	$ 5,372	$ 17,315	$ 10,329

[1] Includes share-based compensation expense as follows:Cost of sales 2,398 2,640 4,055 4,695 Research and development 8,670 7,261 15,768 13,570 Selling, general and administrative 11,958 5,372 17,315 10,329

[2] During the three and six months ended September 30, 2015, $1.8 million and $3.6 million, respectively, of share-based compensation expense was capitalized to inventory and $2.4 million and $4.1 million, respectively, of previously capitalized share-based compensation expense in inventory was sold. During the three and six months ended September 30, 2014, $1.6 million and $3.3 million, respectively, of share-based compensation expense was capitalized to inventory and $2.6 million and $4.7 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.

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Special Charges (Notes)

6 Months Ended

Sep. 30, 2015

Other Nonrecurring (Income) Expense [Abstract]

Special charges

Special Charges

The Company incurred special charges related to severance, office closing and other costs associated with its acquisition activity of $6.6 million and $8.2 million for the three and six months ended September 30, 2015, respectively, and $0.8 million and $1.1 million for the three and six months ended September 30, 2014, respectively.

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Recently Issued Accounting Pronouncements (Notes)

6 Months Ended

Sep. 30, 2015

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Recently Issued Accounting Pronouncements

Recently Issued Accounting Pronouncements

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09-Revenue from Contracts with Customers, which will supersede nearly all existing revenue recognition guidance under US GAAP.  The standard's core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The Company is evaluating its existing revenue recognition policies to determine whether any contracts in the scope of the guidance will be materially affected by the new requirements.  The effects may include identifying performance obligations in existing arrangements, estimating the amount of variable consideration to include in the transaction price and allocating the transaction price to each separate performance obligation.  On July 9, 2015, the FASB delayed the effective date of the new standard by one year to December 15, 2017, for annual and interim reporting periods beginning after that date. In accordance with the delay, the new standard will be effective for the Company beginning no later than April 1, 2018.  Early adoption is permitted, but not before the original effective date of December 15, 2016.  The standard allows for either "full retrospective" adoption, meaning the standard is applied to all of the periods presented, or "modified retrospective" adoption, meaning the standard is applied only to the most current period presented in the financial statements.  The Company is currently evaluating the transition method that will be elected.

In April 2015, the FASB issued ASU 2015-03-Simplifying the Presentation of Debt Issuance Costs. This standard amends existing guidance to require the presentation of debt issuance costs in the balance sheet as a deduction from the carrying amount of the related debt liability instead of a deferred charge. ASU 2015-03 is effective for interim and annual reporting periods beginning after December 15, 2015 and requires retrospective application. Early adoption is permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In April 2015, the FASB issued ASU 2015-05-Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40), Customer's Accounting for Fees Paid in a Cloud Computing Arrangement. This standard provides guidance about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license, then the software license element of the arrangement should be accounted for consistent with the acquisition of other software licenses. If a cloud computing arrangement does not include a software license, the customer should account for the arrangement as a service contract. ASU 2015-05 is effective for interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted. This standard can be adopted either prospectively to all arrangements entered into or materially modified after the effective date or retrospectively. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In July 2015, the FASB issued ASU 2015-11-Simplifying the Measurement of Inventory. This standard requires that entities measure inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. ASU 2015-11 is effective for interim and annual reporting periods beginning after December 15, 2016 and is applied prospectively. Early adoption is permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In September 2015, the FASB issued ASU 2015-16-Business Combinations (Topic 805), Simplifying the Accounting for Measurement-Period Adjustments. This standard amends existing guidance to require acquiring entities in a business combination to recognize measurement-period adjustments in the reporting period in which the adjustment amounts are determined. The standard also requires entities to present separately on the face of the income statement (or disclose in the notes to the financial statements) the amount of the adjustment reflected in the current period earnings, by line item, that would have been recognized in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. ASU 2015-16 is effective for interim and annual reporting periods beginning after December 15, 2015. Early adoption permitted. The standard is to be applied prospectively to measurement-period adjustments that occur after the effective date. The Company adopted this standard beginning in the second quarter of fiscal 2016 and the adoption of this standard did not have a material impact on its consolidated financial statements.

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Income Taxes (Notes)

6 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The provision for income taxes reflects tax on foreign earnings and federal and state tax on U.S. earnings.  The Company had an effective tax rate benefit of 12.6% for the six-month period ended September 30, 2015 and an effective tax rate of 8.0% for the six-month period ended September 30, 2014.  The Company's effective tax rate for the six-month period ended September 30, 2015 is lower compared to the prior year primarily due to favorable tax impacts from the Micrel purchase accounting adjustments. The Company's effective tax rate is lower than statutory rates in the U.S. due primarily to its mix of earnings in foreign jurisdictions with lower tax rates.

At September 30, 2015, the Company had $225.1 million of unrecognized tax benefits.  Unrecognized tax benefits increased by $26.2 million compared to March 31, 2015 primarily as a result of the acquisition of Micrel, the ongoing accrual for uncertain tax positions and the accrual of deficiency interest on these positions.

The Company files U.S. federal, U.S. state, and foreign income tax returns.  For U.S. federal, and in general for U.S. state tax returns, the fiscal 2011 and later tax years remain open for examination by tax authorities.  The U.S. Internal Revenue Service (IRS) is currently auditing Microchip's 2011 and 2012 tax years.  For foreign tax returns, the Company is generally no longer subject to income tax examinations for years prior to fiscal 2007.

The Company recognizes liabilities for anticipated tax audit issues in the U.S. and other domestic and international tax jurisdictions based on its estimate of whether, and the extent to which, additional tax payments are more likely than not.  The Company believes that it has appropriate support for the income tax positions taken and to be taken on its tax returns and that its accruals for tax liabilities are adequate for all open years based on an assessment of many factors including past experience and interpretations of tax laws applied to the facts of each matter.

The Company believes it maintains appropriate reserves to offset any potential income tax liabilities that may arise upon final resolution of matters for open tax years.  If such reserve amounts ultimately prove to be unnecessary, the resulting reversal of such reserves would result in tax benefits being recorded in the period the reserves are no longer deemed necessary.  If such amounts prove to be less than an ultimate assessment, a future charge to expense would be recorded in the period in which the assessment is determined.  Although the timing of the resolution and/or closure of audits is highly uncertain, the Company does not believe it is reasonably possible that the unrecognized tax benefits would materially change in the next 12 months.

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Assets Held for Sale (Notes)

6 Months Ended

Sep. 30, 2015

Property, Plant and Equipment Assets Held-for-sale Disclosure [Abstract]

Assets Held for Sale

Assets Held for Sale

During the year ended March 31, 2015, the Company began to actively market property it acquired as part of the Supertex acquisition.   The Company sold the property on July 22, 2015 for $14.3 million. As of March 31, 2015, the Company had classified the assets as held for sale on its condensed consolidated balance sheet at its estimated fair value of approximately $14.0 million.

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Fair Value Measurements (Notes)

6 Months Ended

Sep. 30, 2014

Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]

Fair Value Measurements

Fair Value Measurements

Accounting rules for fair value clarify that fair value is an exit price, representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants.  As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability.  As a basis for considering such assumptions, the Company utilizes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1- Observable inputs such as quoted prices in active markets;

Level 2- Inputs, other than the quoted prices in active markets, that are observable either directly or indirectly; and

Level 3- Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Marketable Debt Instruments

Marketable debt instruments include instruments such as corporate bonds and debt, government agency bonds, bank deposits, municipal bonds, and money market mutual funds. When the Company uses observable market prices for identical securities that are traded in less active markets, the Company classifies its marketable debt instruments as Level 2. When observable market prices for identical securities are not available, the Company prices its marketable debt instruments using non-binding market consensus prices that are corroborated with observable market data; quoted market prices for similar instruments; or pricing models, such as a discounted cash flow model, with all significant inputs derived from or corroborated with observable market data. Non-binding market consensus prices are based on the proprietary valuation models of pricing providers or brokers. These valuation models incorporate a number of inputs, including non-binding and binding broker quotes; observable market prices for identical or similar securities; and the internal assumptions of pricing providers or brokers that use observable market inputs and, to a lesser degree, unobservable market inputs. The Company corroborates non-binding market consensus prices with observable market data using statistical models when observable market data exists. The discounted cash flow model uses observable market inputs, such as LIBOR-based yield curves, currency spot and forward rates, and credit ratings.

Derivatives

The Company's derivative assets include interest rate swaps that are classified as Level 2 as the Company uses inputs other than quoted prices that are observable for the assets. The Level 2 derivative assets are primarily valued using standard calculations and models that use readily observable market data as their basis.

Assets Measured at Fair Value on a Recurring Basis

Assets measured at fair value on a recurring basis at September 30, 2015 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	217,281	$	—	$	—	$	217,281
Deposit accounts	—		321,797		—		321,797
Short-term investments:
Corporate bonds and debt	—		737,194		—		737,194
Government agency bonds	—		717,419		—		717,419
Municipal bonds	—		7,853		—		7,853
Long-term investments:
Corporate bonds and debt	—		383,899		6,190		390,089
Government agency bonds	—		150,775		—		150,775
Municipal bonds	—		34,221		—		34,221
Auction rate securities	—		—		9,825		9,825
Derivative assets	—		10,963		—		10,963
Total assets measured at fair value	$	217,281	$	2,364,121	$	16,015	$	2,597,417

Assets measured at fair value on a recurring basis at March 31, 2015 are as follows (amounts in thousands):

	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total Balance
Assets
Cash and cash equivalents:
Money market mutual funds	$	279,833	$	—	$	—	$	279,833
Deposit accounts	—		327,982		—		327,982
Short-term investments:
Marketable equity securities	13,166		—		—		13,166
Corporate bonds and debt	—		756,664		—		756,664
Time deposits (1)	—		506		—		506
Government agency bonds	—		549,737		—		549,737
Municipal bonds	—		30,981		—		30,981
Long-term investments:
Corporate bonds and debt	—		164,075		6,190		170,265
Government agency bonds	—		192,519		—		192,519
Municipal bonds	—		10,717		—		10,717
Auction rate securities	—		—		9,825		9,825
Derivative assets	—		8,928		—		8,928
Total assets measured at fair value	$	292,999	$	2,042,109	$	16,015	$	2,351,123

⁽¹⁾ Time deposits in various financial institutions with maturities greater than three months that will mature within one year.

There were no transfers between Level 1 and Level 2 during the three and six-month periods ended September 30, 2015 or the year ended March 31, 2015.

At September 30, 2015 and at March 31, 2015, the Company's ARS for which auctions have been unsuccessful are made up of securities related to the insurance industry valued at $9.8 million with a par value of $22.4 million. The Company estimated the fair value of its ARS, which are classified as Level 3 securities, based on the following: (i) the underlying structure of each security; (ii) the present value of future principal and interest payments discounted at rates considered to reflect current market conditions; (iii) consideration of the probabilities of default, auction failure, or repurchase at par for each period; and (iv) estimates of the recovery rates in the event of default for each security. The significant unobservable inputs used in the fair value measurement of the ARS as of September 30, 2015 were estimated risk free discount rates, liquidity risk premium, and the liquidity horizon. The risk free discount rate applied to these securities was 2% to 2.5% adjusted for the liquidity risk premium which ranged from 9.1% to 29.5%. The anticipated liquidity horizon ranged from 7 to 10 years. A significant increase in the liquidity premium, discount rate or liquidity horizon, in isolation, would lead to a significantly lower fair value measurement. Each quarter, the Company investigates material changes in the fair value measurements of its ARS.

Assets Measured and Recorded at Fair Value on a Non-Recurring Basis

The Company's non-marketable equity, cost method investments, and non-financial assets, such as intangible assets, assets held for sale and property, plant and equipment, are recorded at fair value on a non-recurring basis. These assets are subject to fair value adjustments in certain circumstances, for example, when there is evidence of impairment.  

The Company's non-marketable and cost method investments are monitored on a quarterly basis for impairment charges.  The fair values of these investments have been determined as Level 3 fair value measurements because the valuations use unobservable inputs that require management's judgment due to the absence of quoted market prices. There were no impairment charges recognized on these investments during each of the three and six-month periods ended September 30, 2015 and September 30, 2014. These investments are included in other assets on the condensed consolidated balance sheet.

The fair value measurements related to the Company's non-financial assets, such as intangible assets, assets held for sale and property, plant and equipment are based on available market prices at the measurement date based on transactions of similar assets and third-party independent appraisals, less costs to sell where appropriate. The Company classifies these measurements as Level 2.

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Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Senior Subordinated Convertible Debenture Due 2025 [Member] | Estimate of Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure for Subordinated Convertible Debentures	$ 1,637,767	$ 1,787,531
Senior Subordinated Convertible Debenture Due 2025 [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure for Subordinated Convertible Debentures	1,197,792	1,174,036
Junior Subordinated Convertible Debentures Due 2037 Member | Estimate of Fair Value [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure for Subordinated Convertible Debentures	1,000,673	1,124,125
Junior Subordinated Convertible Debentures Due 2037 Member | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value Disclosure for Subordinated Convertible Debentures	$ 193,630	$ 190,870

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Segment Information (Notes)

6 Months Ended

Sep. 30, 2015

Segment Reporting [Abstract]

Segment Information

Segment Information

The Company's reportable segments are semiconductor products and technology licensing.  The Company does not allocate operating expenses, interest income, interest expense, other income or expense, or provision for or benefit from income taxes to these segments for internal reporting purposes, as the Company does not believe that allocating these expenses is beneficial in evaluating segment performance.  Additionally, the Company does not allocate assets to segments for internal reporting purposes as it does not manage its segments by such metrics.

The following table represents net sales and gross profit for each segment for the three and six months ended September 30, 2015 (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30, 2015				September 30, 2015
	Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	518,216	$	277,775	$	1,028,905	$	563,529
Technology licensing	23,175		23,175		46,438		46,438
	$	541,391	$	300,950	$	1,075,343	$	609,967

The following table represents net sales and gross profit for each segment for the three and six months ended September 30, 2014 (amounts in thousands):

	Three Months Ended				Six Months Ended
	September 30, 2014				September 30, 2014
	Net Sales		Gross Profit		Net Sales		Gross Profit
Semiconductor products	$	523,659	$	284,870	$	1,032,098	$	570,952
Technology licensing	22,584		22,584		43,021		43,021
	$	546,243	$	307,454	$	1,075,119	$	613,973

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Investments (Notes)

6 Months Ended

Sep. 30, 2015

Investments [Abstract]

Investments

Investments

The Company's investments are intended to establish a high-quality portfolio that preserves principal, meets liquidity needs, avoids inappropriate concentrations, and delivers an appropriate yield in relationship to the Company's investment guidelines and market conditions.  The following is a summary of available-for-sale securities at September 30, 2015 (amounts in thousands):

	Available-for-sale Securities
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Government agency bonds	$	866,941	$	1,304	$	(51	)	$	868,194
Municipal bonds	42,579		11		(516		)	42,074
Auction rate securities	9,825		—		—			9,825
Corporate bonds and debt	1,127,390		1,323		(1,430		)	1,127,283
	$	2,046,735	$	2,638	$	(1,997	)	$	2,047,376

The following is a summary of available-for-sale securities at March 31, 2015 (amounts in thousands):

	Available-for-sale Securities
	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Government agency bonds	$	741,780	$	676	$	(200	)	$	742,256
Municipal bonds	41,552		155		(9		)	41,698
Auction rate securities	9,825		—		—			9,825
Time deposits (1)	506		—		—			506
Corporate bonds and debt	924,818		2,376		(265		)	926,929
Marketable equity securities	1,362		11,804		—			13,166
	$	1,719,843	$	15,011	$	(474	)	$	1,734,380

⁽¹⁾ Time deposits in various financial institutions with maturities greater than three months that will mature within one year.

At September 30, 2015, the Company's available-for-sale securities are presented on the condensed consolidated balance sheets as short-term investments of $1,462.5 million and long-term investments of $584.9 million.  At March 31, 2015, the Company's available-for-sale securities are presented on the condensed consolidated balance sheets as short-term investments of $1,351.1 million and long-term investments of $383.3 million.

At March 31, 2015, the Company's marketable equity securities consisted of an investment in Hua Hong Semiconductor Limited (Hua Hong), which effected its initial public offering on the Hong Kong stock exchange on October 15, 2014. The Company sold all of its remaining shares of Hua Hong in the three months ended June 30, 2015.

The Company sold available-for-sale securities for proceeds of $46.7 million and $135.8 million during the three and six months ended September 30, 2015, respectively. The Company sold available-for-sale securities for proceeds of $26.7 million and $170.7 million during the three and six months ended September 30, 2014, respectively. The Company had no material realized gains from the sale of available-for-sale securities during the three months ended September 30, 2015. During the six months ended September 30, 2015, the Company had net realized gains of $14.0 million, from sales of available-for-sale marketable equity and debt securities. The Company had no material realized gains from the sale of available-for-sale securities during the three and six months ended September 30, 2014. The Company determines the cost of an investment sold on an average cost basis at the individual security level for sales from multiple lots. For all other sales, the Company uses an adjusted cost basis at the individual security level.

The following tables show all investments in an unrealized loss position for which an other-than-temporary impairment has not been recognized and the related gross unrealized losses and fair value, aggregated by investment category and the length of time that the individual securities have been in a continuous unrealized loss position (amounts in thousands):

	September 30, 2015
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government agency bonds	$	140,775	$	(51	)	$	10,000	$	—		$	150,775	$	(51	)
Municipal bonds	34,222		(516		)	—		—			34,222		(516		)
Corporate bonds and debt	391,344		(1,361		)	26,828		(69		)	418,172		(1,430		)
	$	566,341	$	(1,928	)	$	36,828	$	(69	)	$	603,169	$	(1,997	)

	March 31, 2015
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Government agency bonds	$	162,948	$	(142	)	$	29,942	$	(58	)	$	192,890	$	(200	)
Municipal bonds	13,318		(9		)	—		—			13,318		(9		)
Corporate bonds and debt	163,095		(219		)	19,021		(46		)	182,116		(265		)
	$	339,361	$	(370	)	$	48,963	$	(104	)	$	388,324	$	(474	)

Management does not believe any of the unrealized losses represent an other-than-temporary impairment based on its evaluation of available evidence as of September 30, 2015 and the Company's intent is to hold these investments until these assets are no longer impaired, except for certain auction rate securities (ARS).  For those debt securities not scheduled to mature until after September 30, 2016, such recovery is not anticipated to occur in the next year and these investments have been classified as long-term investments on the condensed consolidated balance sheet.

The amortized cost and estimated fair value of the available-for-sale securities at September 30, 2015, by contractual maturity, excluding corporate debt of $6.2 million, which has no contractual maturity, are shown below (amounts in thousands).  Expected maturities can differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties, and the Company views its available-for-sale securities as available for current operations.

	Adjusted Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Available-for-sale
Due in one year or less	$	377,682	$	650	$	(42	)	$	378,290
Due after one year and through five years	1,520,303		1,942		(1,954		)	1,520,291
Due after five years and through ten years	132,735		46		(1		)	132,780
Due after ten years	9,825		—		—			9,825
	$	2,040,545	$	2,638	$	(1,997	)	$	2,041,186

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Fair Value of Financial Instruments (Notes)

6 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

The carrying amount of cash equivalents approximates fair value because their maturity is less than three months.  Management believes the carrying amount of the equity and cost-method investments materially approximated fair value at September 30, 2015 based upon unobservable inputs. The fair values of these investments have been determined as Level 3 fair value measurements. The fair values of the Company's line of credit borrowings are estimated using discounted cash flow analyses, based on the Company's current incremental borrowing rates for similar types of borrowing arrangements and approximate carrying value. Based on the borrowing rates currently available to the Company for bank loans with similar terms and average maturities, the fair value of the Company's line of credit borrowings at September 30, 2015 approximated book value and are considered Level 2 in the fair value hierarchy described in Note 7. The carrying amount of accounts receivable, accounts payable and accrued liabilities approximates fair value due to the short-term maturity of the amounts and are considered Level 2 in the fair value hierarchy. 

Fair Value of Subordinated Convertible Debentures

The Company measures the fair value of its senior and junior subordinated convertible debentures for disclosure purposes. These fair values are based on observable market prices for these debentures, which are traded in less active markets and are therefore classified as a Level 2 fair value measurement, and exclude the impacts of derivative activity.

The carrying amounts and fair values of the Company’s senior and junior subordinated convertible debentures as of September 30, 2015 and March 31, 2015 are as follows (amounts in thousands):

	September 30, 2015				March 31, 2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
1.625% Senior Subordinated Convertible Debentures	$	1,197,792	$	1,637,767	$	1,174,036	$	1,787,531
2.125% Junior Subordinated Convertible Debentures	$	193,630	$	1,000,673	$	190,870	$	1,124,125

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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Mar. 31, 2015
Property, Plant and Equipment [Line Items]
Property, plant, and equipment costs	$ 2,240,026		$ 2,240,026		$ 2,142,416
Accumulated depreciation and amortization	1,608,426		1,608,426		1,560,844
Property, plant and equipment, net	631,600		631,600		581,572
Depreciation expense	26,200	$ 24,300	50,900	$ 47,600
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment costs	63,934		63,934		55,624
Buildings and building improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment costs	451,594		451,594		434,403
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment costs	1,632,407		1,632,407		1,576,074
Projects in progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant, and equipment costs	$ 92,091		$ 92,091		$ 76,315

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Noncontrolling Interests Change in Parent Ownership (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net income attributable to Microchip Technology stockholders	$ 64,899	$ 93,641	$ 195,566	$ 183,550
Parent [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net income attributable to Microchip Technology stockholders			195,566
Decrease in paid-in capital for purchase of additional interests			(1,610)
Transfers from noncontrolling interest			(1,610)
Change from net income attributable to Microchip Technology stockholders and transfers from noncontrolling interest			$ 193,956

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Assets Held for Sale (Details) - Land and Building [Member] - USD ($) $ in Millions	Jul. 22, 2015	Mar. 31, 2015
Long Lived Assets Held-for-sale [Line Items]
Proceeds from sale of asset held for sale	$ 14.3
Assets Held-for-sale, Long Lived, Fair Value Disclosure		$ 14.0

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Business Acquisitions (Tables)

6 Months Ended

Sep. 30, 2015

Micrel Incorporated [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The table below represents the preliminary allocation of the purchase price to the net assets acquired based on their estimated fair values as of August 3, 2015, as well as the associated estimated useful lives of the acquired intangible assets at that date (amounts in thousands):

Assets acquired	August 3, 2015
Cash and cash equivalents	$	99,196
Accounts receivable, net	12,296
Inventories	78,967
Prepaid expenses and other current assets	10,548
Property, plant and equipment, net	38,566
Goodwill	437,060
Purchased intangible assets	274,800
Other assets	4,268
Total assets acquired	955,701
Liabilities assumed
Accounts payable	(11,068		)
Other current liabilities	(30,241		)
Deferred tax liabilities	(88,796		)
Long-term income tax payable	(9,239		)
Other long-term liabilities	(127		)
Total liabilities assumed	(139,471		)
Purchase price allocated	$	816,230

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination

Purchased Intangible Assets	Useful Life	August 3, 2015
	(in years)	(in thousands)
Core/developed technology	10	$	176,800
In-process technology	10	22,100
Customer-related	5	70,400
Backlog	1	5,500
		$	274,800

Business Acquisition, Pro Forma Information

The following unaudited pro-forma consolidated results of operations for the three and six months ended September 30, 2015 and 2014 assume the Micrel acquisition occurred as of April 1, 2014. The pro-forma adjustments are mainly comprised of acquired inventory fair value costs and amortization of purchased intangible assets. The pro-forma results of operations are presented for informational purposes only and are not indicative of the results of operations that would have been achieved if the acquisition had taken place on April 1, 2014 or of results that may occur in the future (amounts in thousands except per share data):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net sales	$	574,432	$	613,722	$	1,163,066	$	1,184,937
Net income	83,868		70,440		202,037		125,387
Basic earnings per share	$	0.41	$	0.35	$	0.99	$	0.63
Diluted earnings per share	$	0.39	$	0.31	$	0.93	$	0.56

ISSC Technologies Corporation [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The table below represents the allocation of the purchase price, including adjustments to the purchase price allocation from the previously reported figures at March 31, 2015, to the net assets acquired based on their estimated fair values as of July 17, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized as of June 30, 2015 (amounts in thousands):

Assets acquired	Previously Reported March 31, 2015			Adjustments			June 30, 2015
Cash and cash equivalents	$	15,120		$	—		$	15,120
Short-term investments	27,063			—			27,063
Accounts receivable, net	8,792			—			8,792
Inventories	16,542			—			16,542
Prepaid expenses and other current assets	2,501			—			2,501
Property, plant and equipment, net	2,637			—			2,637
Goodwill	154,399			389			154,788
Purchased intangible assets	147,800			—			147,800
Other assets	1,370			—			1,370
Total assets acquired	376,224			389			376,613
Liabilities assumed
Accounts payable	(9,860		)	—			(9,860		)
Other current liabilities	(16,535		)	—			(16,535		)
Long-term income tax payable	(4,402		)	(389		)	(4,791		)
Deferred tax liability	(25,126		)	—			(25,126		)
Other long-term liabilities	(245		)	—			(245		)
Total liabilities assumed	(56,168		)	(389		)	(56,557		)
Net assets acquired including noncontrolling interest	320,056			—			320,056
Less: noncontrolling interest	(52,467		)	—			(52,467		)
Net assets acquired	$	267,589		$	—		$	267,589

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination

Purchased Intangible Assets	Useful Life	July 17, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	27,200
Customer-related	3	51,100
Backlog	1	600
		$	147,800

Supertex Inc. [Member]

Business Acquisition [Line Items]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The table below represents the allocation of the purchase price to the net assets acquired based on their estimated fair values as of April 1, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized on March 31, 2015 (amounts in thousands):

Assets acquired	March 31, 2015
Cash and cash equivalents	$	14,790
Short-term investments	140,984
Accounts receivable, net	7,047
Inventories	27,630
Prepaid expenses	1,493
Deferred tax assets	2,456
Other current assets	12,625
Property, plant and equipment, net	15,679
Goodwill	143,160
Purchased intangible assets	89,600
Other assets	325
Total assets acquired	455,789
Liabilities assumed
Accounts payable	(8,481		)
Accrued liabilities	(19,224		)
Long-term income tax payable	(3,796		)
Deferred tax liability	(32,511		)
Total liabilities assumed	(64,012		)
Net assets acquired	$	391,777

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination

Purchased Intangible Assets	Useful Life	April 1, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	1,900
Customer-related	2	17,700
Backlog	1	1,100
		$	89,600

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Business Acquisitions (Schedule of Purchased Intangible Assets) (Details) - USD ($) $ in Thousands				3 Months Ended
	Aug. 03, 2015	Jul. 17, 2014	Apr. 01, 2014	Sep. 30, 2015
Core/developed technology
Business Acquisition [Line Items]
Useful Life				10 years
Customer-related
Business Acquisition [Line Items]
Useful Life				5 years
Backlog
Business Acquisition [Line Items]
Useful Life				1 year
Micrel Incorporated [Member]
Business Acquisition [Line Items]
Purchased Intangible Assets	$ 274,800
Micrel Incorporated [Member] | Core/developed technology
Business Acquisition [Line Items]
Useful Life	10 years
Purchased Intangible Assets	$ 176,800			$ 176,800
Micrel Incorporated [Member] | In-process technology
Business Acquisition [Line Items]
Useful Life	10 years
Purchased Intangible Assets	$ 22,100			22,100
Micrel Incorporated [Member] | Customer-related
Business Acquisition [Line Items]
Useful Life	5 years
Purchased Intangible Assets	$ 70,400			70,400
Micrel Incorporated [Member] | Backlog
Business Acquisition [Line Items]
Useful Life	1 year
Purchased Intangible Assets	$ 5,500			$ 5,500
ISSC Technologies Corporation [Member]
Business Acquisition [Line Items]
Purchased Intangible Assets		$ 147,800
ISSC Technologies Corporation [Member] | Core/developed technology
Business Acquisition [Line Items]
Useful Life		10 years
Purchased Intangible Assets		$ 68,900
ISSC Technologies Corporation [Member] | In-process technology
Business Acquisition [Line Items]
Useful Life		10 years
Purchased Intangible Assets		$ 27,200
ISSC Technologies Corporation [Member] | Customer-related
Business Acquisition [Line Items]
Useful Life		3 years
Purchased Intangible Assets		$ 51,100
ISSC Technologies Corporation [Member] | Backlog
Business Acquisition [Line Items]
Useful Life		1 year
Purchased Intangible Assets		$ 600
Supertex Inc.
Business Acquisition [Line Items]
Purchased Intangible Assets			$ 89,600
Supertex Inc. | Core/developed technology
Business Acquisition [Line Items]
Useful Life			10 years
Purchased Intangible Assets			$ 68,900
Supertex Inc. | In-process technology
Business Acquisition [Line Items]
Useful Life			10 years
Purchased Intangible Assets			$ 1,900
Supertex Inc. | Customer-related
Business Acquisition [Line Items]
Useful Life			2 years
Purchased Intangible Assets			$ 17,700
Supertex Inc. | Backlog
Business Acquisition [Line Items]
Useful Life			1 year
Purchased Intangible Assets			$ 1,100

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Noncontrolling Interests (Notes)

6 Months Ended

Sep. 30, 2015

Noncontrolling Interest [Abstract]

Noncontrolling Interest Disclosure [Text Block]

Noncontrolling Interests

The following table presents the changes in the components of noncontrolling interests for the six months ended September 30, 2015 (amounts in thousands):

	Noncontrolling Interests
Balance at March 31, 2015	$	16,372
Net loss attributable to noncontrolling interests	(207		)
Purchase of additional interests	(16,165		)
Balance at September 30, 2015	$	—

The following table presents the effect of changes in the Company's ownership interest in ISSC on the Company's stockholders' equity for the six months ended September 30, 2015 (amounts in thousands):

	Six Months Ended
	September 30, 2015
Net income attributable to Microchip Technology stockholders	$	195,566
Decrease in paid-in capital for purchase of additional interests	(1,610		)
Transfers from noncontrolling interest	(1,610		)
Change from net income attributable to Microchip Technology stockholders and transfers from noncontrolling interest	$	193,956

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Credit facility (Notes)

6 Months Ended

Sep. 30, 2015

Line of Credit Facility [Abstract]

Credit Facility

Credit Facility

In February 2015, the Company amended its existing $2.0 billion credit agreement by increasing the revolving credit facility to $2.555 billion and removing the term loan portion of the agreement. The new credit agreement includes two tranches. One tranche consists of bank commitments through February 2020 and another tranche consists of bank commitments through June 2018, the maturity date of the original credit agreement. The Company's increase option was also adjusted to $300 million. The credit agreement provides for a $125 million foreign currency sublimit, a $25 million letter of credit sublimit and a $25 million swingline loan sublimit. The amended credit agreement was accounted for as a modification and as such any remaining unamortized deferred costs associated with the prior credit agreement was associated with the new credit agreement since the borrowing capacity was increased. At September 30, 2015, $1,296.5 million of revolving credit facility borrowings were outstanding under the credit agreement compared to $462.0 million at March 31, 2015.

The loans under the credit agreement bear interest, at the Company's option, at the base rate plus a spread of 0.25% to 1.25% or an adjusted LIBOR rate (based on one, two, three, or six-month interest periods) plus a spread of 1.25% to 2.25%, in each case with such spread being determined based on the consolidated leverage ratio for the preceding four fiscal quarters (in the case of the 2018 tranche revolving loans) or the consolidated senior leverage ratio (in the case of the 2020 tranche revolving loans). The base rate means the highest of JPMorgan Chase Bank, N.A.'s prime rate, the federal funds rate plus a margin equal to 0.50% and the adjusted LIBOR rate for a 1-month interest period plus a margin equal to 1.00%. Swingline loans accrue interest at a per annum rate based on the base rate plus the applicable margin for base rate loans. Base rate loans may only be made in U.S. dollars. The Company is also obligated to pay other customary administration fees and letter of credit fees for a credit facility of this size and type.

Interest is due and payable in arrears quarterly for loans bearing interest at the base rate and at the end of an interest period (or at each three-month interval in the case of loans with interest periods greater than three months) in the case of loans bearing interest at the adjusted LIBOR rate. Interest expense related to the credit agreement was approximately $4.9 million and $8.5 million in the three and six months ended September 30, 2015, respectively, and approximately $5.1 million and $10.1 million in the three and six months ended September 30, 2014, respectively. Principal, together with all accrued and unpaid interest, is due and payable on the respective tranche maturity date, which is June 27, 2018 and February 4, 2020. The weighted average interest rate on short-term borrowings outstanding at September 30, 2015 related to the credit agreement was 1.44%. The Company also pays a quarterly commitment fee on the available but unused portion of its line of credit which is calculated on the average daily available balance during the period. The Company may prepay the loans and terminate the commitments, in whole or in part, at any time without premium or penalty, subject to certain conditions including minimum amounts in the case of commitment reductions and reimbursement of certain costs in the case of prepayments of LIBOR loans.

The Company's obligations under the credit agreement are guaranteed by certain of its subsidiariesmeeting materiality thresholds set forth in the credit agreement. To secure the Company's obligations under the credit agreement, the Company and its domestic subsidiaries will be required to pledge the equity securities of certain of their respective material subsidiaries, subject to certain exceptions and limitations.

The credit agreement contains customary affirmative and negative covenants, including covenants that limit or restrict the Company and its subsidiaries' ability to, among other things, incur subsidiary indebtedness, grant liens, merge or consolidate, dispose of assets, make investments, make acquisitions, enter into certain transactions with affiliates, pay dividends or make distributions, repurchase stock, enter into restrictive agreements and enter into sale and leaseback transactions, in each case subject to customary exceptions for a credit facility of this size and type. The Company is also required to maintain compliance with consolidated senior and total leverage ratios and a consolidated interest coverage ratio. At September 30, 2015, the Company was in compliance with these covenants.

The credit agreement includes customary events of default that include, among other things, non-payment defaults, inaccuracy of representations and warranties, covenant defaults, cross default to material indebtedness, bankruptcy and insolvency defaults, material judgment defaults, ERISA defaults and a change of control default. The occurrence of an event of default could result in the acceleration of the obligations under the credit agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the credit agreement at a per annum rate equal to 2.00% above the applicable interest rate for any overdue principal and 2.00% above the rate applicable for base rate loans for any other overdue amounts.

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Business Acquisitions (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		2 Months Ended	6 Months Ended
	Aug. 03, 2015	Sep. 30, 2015	Sep. 30, 2015	Sep. 30, 2014	Jul. 17, 2014
Business Acquisition [Line Items]
Amount of cash paid, net of cash and short-term investments acquired			$ 343,928	$ 0
Micrel Incorporated [Member]
Business Acquisition [Line Items]
Tendered offer price per share	$ 14.00
Cash paid for shares	$ 430,000
Shares issued in Micrel acquisition	8,626,795
Non cash consideration of certain share-based payment awards	$ 4,100
Cash paid in a business combination for employee vested stock awards	13,100
Total consideration transferred	816,200
Net deferred tax liability for future amortization expense of acquired intangible assets	99,800
Net deferred tax assets acquired in a business combination	$ 11,000
Revenue of acquiree included in statement of income since the acquisition date		$ 21,500
Net income (loss) of acquiree included in statement of income since the acquisition date		$ (28,500)
ISSC Technologies Corporation [Member]
Business Acquisition [Line Items]
Ownership interest acquired in ISSC tender offer					83.50%

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Property, Plant and Equipment (Tables)

6 Months Ended

Sep. 30, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Land	$	63,934	$	55,624
Building and building improvements	451,594		434,403
Machinery and equipment	1,632,407		1,576,074
Projects in process	92,091		76,315
	2,240,026		2,142,416
Less accumulated depreciation and amortization	1,608,426		1,560,844
	$	631,600	$	581,572

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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (PARENTHETICAL) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense		$ 23,026	$ 15,273	$ 37,138	$ 28,594
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	[1]	2,398	2,640	4,055	4,695
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense		8,670	7,261	15,768	13,570
Selling General And Administrative Member
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense		$ 11,958	$ 5,372	$ 17,315	$ 10,329

[1] During the three and six months ended September 30, 2015, $1.8 million and $3.6 million, respectively, of share-based compensation expense was capitalized to inventory and $2.4 million and $4.1 million, respectively, of previously capitalized share-based compensation expense in inventory was sold. During the three and six months ended September 30, 2014, $1.6 million and $3.3 million, respectively, of share-based compensation expense was capitalized to inventory and $2.6 million and $4.7 million, respectively, of previously capitalized share-based compensation expense in inventory was sold.

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Business Acquisitions (Notes)

6 Months Ended

Sep. 30, 2015

Business Combinations [Abstract]

Business Acquisitions

Business Acquisitions

Acquisition of Micrel

On August 3, 2015, the Company acquired Micrel, Incorporated (Micrel), a publicly traded company based in San Jose, California. Micrel shareholders were able to elect to receive the $14.00 per share purchase price in either cash or shares of Microchip common stock. Based on the results of the shareholder elections, the Company paid an aggregate of approximately $430.0 million in cash and issued an aggregate of 8,626,795 shares of its common stock to Micrel shareholders. The total consideration transferred in the acquisition, including approximately $4.1 million of non cash consideration for the exchange of certain share-based payment awards of Micrel for stock awards of the Company, and approximately $13.1 million of cash consideration for the payout of vested employee stock awards, was approximately $816.2 million. The Company financed the cash portion of the purchase price using borrowings under its existing credit agreement. As a result of the acquisition, Micrel became a wholly owned subsidiary of the Company. Micrel's business is to design, develop, manufacture and market a range of high-performance analog, power and mixed-signal integrated circuits. Micrel's products address a wide range of end markets including industrial and automotive, wireline communications, enterprise and cloud infrastructure and mobility. Micrel also manufactures custom analog and mixed-signal circuits and provides wafer foundry services for customers which produce electronic systems utilizing semiconductor manufacturing processes as well as micro-electrical mechanical system technologies. The Company's primary reason for this acquisition was to expand the Company's range of solutions, products and capabilities in these areas by extending its served available market.

The acquisition was accounted for under the acquisition method of accounting, with the Company identified as the acquirer, and the operating results of Micrel have been included in the Company's condensed consolidated financial statements as of the closing date of the acquisition. Under the acquisition method of accounting, the aggregate amount of consideration paid by the Company was allocated to Micrel's net tangible assets and intangible assets based on their estimated fair values as of August 3, 2015.  The excess of the purchase price over the value of the net tangible assets and intangible assets was recorded to goodwill. The factors contributing to the recognition of goodwill were based upon the Company's conclusion that there are strategic and synergistic benefits that are expected to be realized from the acquisition. The goodwill has been allocated to the Company's semiconductor products reporting segment.  None of the goodwill related to the Micrel acquisition is deductible for tax purposes.  The Company retained an independent third-party appraiser to assist management in its valuation; however, the purchase price allocation has not been finalized. This could result in adjustments to the fair values of the assets acquired and liabilities assumed, the useful lives of intangible assets, the residual amount allocated to goodwill and deferred income taxes recognized. The preliminary allocation of the purchase price is based on the best estimates of management and is subject to revision based on the final valuations and estimates of useful lives.

The table below represents the preliminary allocation of the purchase price to the net assets acquired based on their estimated fair values as of August 3, 2015, as well as the associated estimated useful lives of the acquired intangible assets at that date (amounts in thousands):

Assets acquired	August 3, 2015
Cash and cash equivalents	$	99,196
Accounts receivable, net	12,296
Inventories	78,967
Prepaid expenses and other current assets	10,548
Property, plant and equipment, net	38,566
Goodwill	437,060
Purchased intangible assets	274,800
Other assets	4,268
Total assets acquired	955,701
Liabilities assumed
Accounts payable	(11,068		)
Other current liabilities	(30,241		)
Deferred tax liabilities	(88,796		)
Long-term income tax payable	(9,239		)
Other long-term liabilities	(127		)
Total liabilities assumed	(139,471		)
Purchase price allocated	$	816,230

Purchased Intangible Assets	Useful Life	August 3, 2015
	(in years)	(in thousands)
Core/developed technology	10	$	176,800
In-process technology	10	22,100
Customer-related	5	70,400
Backlog	1	5,500
		$	274,800

Purchased intangible assets include core and developed technology, in-process research and development, customer-related intangibles and acquisition-date backlog. The estimated fair values of the core and developed technology and in-process research and development were determined based on the present value of the expected cash flows to be generated by the respective existing technology or future technology. The core and developed technology intangible assets are being amortized commensurate with the expected cash flows used in the initial determination of fair value. In-process technology is capitalized until such time the related projects are completed or abandoned at which time the capitalized amounts will begin to be amortized or written off.

Customer-related intangible assets consist of Micrel's contractual relationships and customer loyalty related to its distributor and end-customer relationships, and the fair values of the customer-related intangibles were determined based on Micrel's projected revenues. An analysis of expected attrition and revenue growth for existing customers was prepared from Micrel's historical customer information.  Customer relationships are being amortized in a manner consistent with the estimated cash flows associated with the existing customers and anticipated retention rates. Backlog relates to the value of orders not yet shipped by Micrel at the acquisition date, and the preliminary fair values were based on the estimated profit associated with those orders. Backlog related assets are being recognized commensurate with recognition of the revenue for the orders on which the backlog intangible assets were determined.  Amortization expense associated with acquired intangible assets is not deductible for tax purposes.  Thus, approximately $99.8 million was established as a net deferred tax liability for the future amortization of the intangible assets offset by $11.0 million of net deferred tax assets.

The amount of Micrel net sales and net loss included in the Company's condensed consolidated statements of income for the period August 3, 2015 to September 30, 2015 was $21.5 million and $28.5 million, respectively.

The following unaudited pro-forma consolidated results of operations for the three and six months ended September 30, 2015 and 2014 assume the Micrel acquisition occurred as of April 1, 2014. The pro-forma adjustments are mainly comprised of acquired inventory fair value costs and amortization of purchased intangible assets. The pro-forma results of operations are presented for informational purposes only and are not indicative of the results of operations that would have been achieved if the acquisition had taken place on April 1, 2014 or of results that may occur in the future (amounts in thousands except per share data):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2015		2014		2015		2014
Net sales	$	574,432	$	613,722	$	1,163,066	$	1,184,937
Net income	83,868		70,440		202,037		125,387
Basic earnings per share	$	0.41	$	0.35	$	0.99	$	0.63
Diluted earnings per share	$	0.39	$	0.31	$	0.93	$	0.56

Acquisition of ISSC

On July 17, 2014, the Company acquired an 83.5% interest in Taiwan based ISSC, a leading provider of low power Bluetooth and advanced wireless solutions for the Internet of Things (IoT) market. The Company acquired the 83.5% ownership interest through a tender offer process. Since the completion of the tender offer, the Company continued to acquire additional shares of ISSC, and as of June 30, 2015, the Company had completed the acquisition of 100% of the outstanding shares of ISSC.

The acquisition was accounted for under the acquisition method of accounting. The table below represents the allocation of the purchase price, including adjustments to the purchase price allocation from the previously reported figures at March 31, 2015, to the net assets acquired based on their estimated fair values as of July 17, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized as of June 30, 2015 (amounts in thousands):

Assets acquired	Previously Reported March 31, 2015			Adjustments			June 30, 2015
Cash and cash equivalents	$	15,120		$	—		$	15,120
Short-term investments	27,063			—			27,063
Accounts receivable, net	8,792			—			8,792
Inventories	16,542			—			16,542
Prepaid expenses and other current assets	2,501			—			2,501
Property, plant and equipment, net	2,637			—			2,637
Goodwill	154,399			389			154,788
Purchased intangible assets	147,800			—			147,800
Other assets	1,370			—			1,370
Total assets acquired	376,224			389			376,613
Liabilities assumed
Accounts payable	(9,860		)	—			(9,860		)
Other current liabilities	(16,535		)	—			(16,535		)
Long-term income tax payable	(4,402		)	(389		)	(4,791		)
Deferred tax liability	(25,126		)	—			(25,126		)
Other long-term liabilities	(245		)	—			(245		)
Total liabilities assumed	(56,168		)	(389		)	(56,557		)
Net assets acquired including noncontrolling interest	320,056			—			320,056
Less: noncontrolling interest	(52,467		)	—			(52,467		)
Net assets acquired	$	267,589		$	—		$	267,589

Purchased Intangible Assets	Useful Life	July 17, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	27,200
Customer-related	3	51,100
Backlog	1	600
		$	147,800

Acquisition of Supertex

On April 1, 2014, the Company acquired Supertex Inc., a publicly traded company based in Sunnyvale, California. Supertex is a leader in high voltage analog and mixed signal technologies, with a strong position in the medical, lighting and industrial control markets.

The acquisition was accounted for under the acquisition method of accounting. The table below represents the allocation of the purchase price to the net assets acquired based on their estimated fair values as of April 1, 2014 as well as the associated estimated useful lives of the acquired intangible assets at that date. The purchase price allocation was finalized on March 31, 2015 (amounts in thousands):

Assets acquired	March 31, 2015
Cash and cash equivalents	$	14,790
Short-term investments	140,984
Accounts receivable, net	7,047
Inventories	27,630
Prepaid expenses	1,493
Deferred tax assets	2,456
Other current assets	12,625
Property, plant and equipment, net	15,679
Goodwill	143,160
Purchased intangible assets	89,600
Other assets	325
Total assets acquired	455,789
Liabilities assumed
Accounts payable	(8,481		)
Accrued liabilities	(19,224		)
Long-term income tax payable	(3,796		)
Deferred tax liability	(32,511		)
Total liabilities assumed	(64,012		)
Net assets acquired	$	391,777

Purchased Intangible Assets	Useful Life	April 1, 2014
	(in years)	(in thousands)
Core/developed technology	10	$	68,900
In-process technology	10	1,900
Customer-related	2	17,700
Backlog	1	1,100
		$	89,600

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Investments AFS, Debt Maturities (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Mar. 31, 2015
Schedule of available-for-sale securities, debt maturities [Line Items]
Available-for-sale, adjusted cost	$ 2,046,735	$ 1,719,843
Available-for-sale, gross unrealized gain	2,638	15,011
Available-for-sale, gross unrealized loss	(1,997)	(474)
Available-for-sale, estimated fair value	2,047,376	1,734,380
Due in one year or less [Member]
Schedule of available-for-sale securities, debt maturities [Line Items]
Available-for-sale, adjusted cost	377,682
Available-for-sale, gross unrealized gain	650
Available-for-sale, gross unrealized loss		(42)
Available-for-sale, estimated fair value	378,290
Due after one year and through five years [Member]
Schedule of available-for-sale securities, debt maturities [Line Items]
Available-for-sale, adjusted cost	1,520,303
Available-for-sale, gross unrealized gain	1,942
Available-for-sale, gross unrealized loss		(1,954)
Available-for-sale, estimated fair value	1,520,291
Due after five years and through ten years [Member]
Schedule of available-for-sale securities, debt maturities [Line Items]
Available-for-sale, adjusted cost	132,735
Available-for-sale, gross unrealized gain	46
Available-for-sale, gross unrealized loss		(1)
Available-for-sale, estimated fair value	132,780
Due after ten years [Member]
Schedule of available-for-sale securities, debt maturities [Line Items]
Available-for-sale, adjusted cost	9,825
Available-for-sale, gross unrealized gain	0
Available-for-sale, gross unrealized loss		0
Available-for-sale, estimated fair value	9,825
Total Maturities [Member]
Schedule of available-for-sale securities, debt maturities [Line Items]
Available-for-sale, adjusted cost	2,040,545
Available-for-sale, gross unrealized gain	2,638
Available-for-sale, gross unrealized loss		$ (1,997)
Available-for-sale, estimated fair value	$ 2,041,186

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Dividends (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		6 Months Ended
	Nov. 04, 2015	Sep. 25, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Dividends [Abstract]
Dividend per share paid during period		$ 0.3580			$ 0.7155
Subsequent Event [Line Items]
Dividends declared per common share			$ 0.3580	$ 0.3560	$ 0.7155	$ 0.7115
Total amount of dividend payment		$ 72.7			$ 145.0
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividends declared per common share	$ 0.3585
Total amount of dividend payment	$ 72.9

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Income Tax (Details) - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Effective Income Tax Rate (Benefit)	(12.60%)	8.00%
Unrecognized Tax Benefits	$ 225.1
Unrecognized Tax Benefits, Period Increase	$ 26.2

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Contingencies (Notes)

6 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Contingencies

Contingencies

In the ordinary course of the Company's business, it is involved in a limited number of legal actions, both as plaintiff and defendant, and could incur uninsured liability in any one or more of them.  The Company also periodically receives notifications from various third parties alleging infringement of patents, intellectual property rights or other matters.  With respect to pending legal actions to which the Company is a party, although the outcomes of these actions are not generally determinable, the Company believes that the ultimate resolution of these matters will not have a material adverse effect on its financial position, cash flows or results of operations.  Litigation relating to the semiconductor industry is not uncommon, and the Company is, and from time to time has been, subject to such litigation.  No assurances can be given with respect to the extent or outcome of any such litigation in the future.

The Company's technology license agreements generally include an indemnification clause that indemnifies the licensee against liability and damages (including legal defense costs) arising from any claims of patent, copyright, trademark or trade secret infringement by the Company's proprietary technology.  The terms of these indemnification provisions approximate the terms of the outgoing technology license agreements, which are typically perpetual unless terminated by either party for breach.  The possible amount of future payments the Company could be required to make based on agreements that specify indemnification limits, if such indemnifications were required on all of these agreements, is approximately $139 million. There are some licensing agreements in place that do not specify indemnification limits.  The Company had not recorded any liabilities related to these indemnification obligations as of September 30, 2015.

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Derivative Instruments Freestanding Forward Contracts (Details)	6 Months Ended
	Sep. 30, 2015
Derivative [Line Items]
Percentage Of Company Sales Denominated In Us Dollars	99.00%

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Fair Value of Financial Instruments (Tables)

6 Months Ended

Sep. 30, 2015

Fair Value Disclosures [Abstract]

Carrying Amounts and Fair Values of Subordinated Convertible Debentures [Table Text Block]

The carrying amounts and fair values of the Company’s senior and junior subordinated convertible debentures as of September 30, 2015 and March 31, 2015 are as follows (amounts in thousands):

	September 30, 2015				March 31, 2015
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
1.625% Senior Subordinated Convertible Debentures	$	1,197,792	$	1,637,767	$	1,174,036	$	1,787,531
2.125% Junior Subordinated Convertible Debentures	$	193,630	$	1,000,673	$	190,870	$	1,124,125

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Property, Plant and Equipment (Notes)

6 Months Ended

Sep. 30, 2015

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Land	$	63,934	$	55,624
Building and building improvements	451,594		434,403
Machinery and equipment	1,632,407		1,576,074
Projects in process	92,091		76,315
	2,240,026		2,142,416
Less accumulated depreciation and amortization	1,608,426		1,560,844
	$	631,600	$	581,572

Depreciation expense attributed to property, plant and equipment was $26.2 million and $50.9 million for the three and six months ended September 30, 2015, respectively, and $24.3 million and $47.6 million for the three and six months ended September 30, 2014, respectively.