Goodwill And Intangible Assets

6 Months Ended

Mar. 30, 2012

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill are as follows (in thousands):



	Goodwill
Balance as of September 30, 2011	$	663,041
Goodwill impairment	—
Goodwill recognized through business combinations (Note 2)	138,796
Goodwill adjustments	980
Goodwill as of March 30, 2012	$	802,817

The increase in goodwill for the six months ended March 30, 2012 resulted primarily from the acquisition of AATI as discussed in Note 2, Business Combinations. In addition, the Company recorded a measurement period adjustment to goodwill as the result of additional information becoming known which related to the fiscal 2011 acquisition of SiGe Semiconductor, Inc. ("SiGe").

The Company tests its goodwill and non-amortizing trademarks for impairment annually as of the first day of its fourth fiscal quarter and in interim periods if certain events occur indicating the carrying value of goodwill or non-amortizing trademarks may be impaired. There were no indicators of impairment noted during the six months ended March 30, 2012.

Intangible assets consist of the following (in thousands):



		As of							As of
	Weighted Average Amortization Period Remaining (Years)	March 30, 2012							September 30, 2011
	Weighted Average Amortization Period Remaining (Years)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	3.4	$	78,710	$	(28,572	)	$	50,138	$	57,510	$	(21,828	)	$	35,682
Developed technology and other	3.2	87,066		(34,706		)	52,360		70,046		(27,039		)	43,007
IPR&D	Various	6,050		(1,314		)	4,736		4,510		(260		)	4,250
Trademarks	Indefinite	$	3,869	$	—		$	3,869	$	3,869	$	—		$	3,869
Total intangible assets		$	175,695	$	(64,592	)	$	111,103	$	135,935	$	(49,127	)	$	86,808

The increase in intangible assets for the six months ended March 30, 2012 resulted from the acquisition of AATI as discussed in Note 2, Business Combinations.

Annual amortization expense for the next five years related to intangible assets is expected to be as follows (in thousands):



	Remaining 2012		2013		2014		2015		2016		Thereafter
Amortization expense	$	16,732	$	28,445	$	23,371	$	20,466	$	16,247	$	1,973

- Definition

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.

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