COMMITMENTS AND CONTINGENCIES

Warranty

The warranty offered by us on our system sales is generally twelve months, except where previous customer agreements state otherwise, and excludes certain consumable maintenance items. A provision for the estimated cost of warranty, based on historical costs, is recorded as cost of sales when the revenue is recognized. Our warranty obligations require us to repair or replace defective products or parts during the warranty period at no cost to the customer. The actual system performance and/or field warranty expense profiles may differ from historical experience, and in those cases, we adjust our warranty accruals accordingly.

The following table summarizes changes in our product warranty accrual for the three months ended March 31, 2013 and April 1, 2012 (in thousands):



	Three Months Ended
	March 31, 2013			April 1, 2012

Beginning balance	$	1,691		$	3,419
Warranties issued in the period	407			942
Costs to service warranties	(568		)	(1,213		)
Warranty accrual adjustments	12			(455		)
Ending balance	$	1,542		$	2,693

Guarantees

In the ordinary course of business, our bank provides standby letters of credit or other guarantee instruments on our behalf to certain parties as required. The standby letters of credit are secured by certificates of deposit, which are classified as restricted cash in the accompanying Condensed Consolidated Balance Sheets. We have never recorded any liability in connection with these guarantee arrangements beyond what is required to appropriately account for the underlying transaction being guaranteed. We do not believe, based on historical experience and information currently available, that it is probable that any amounts will be required to be paid under such guarantee arrangements. As of March 31, 2013, the maximum potential amount that we could be required to pay was $1.9 million, the total amount of outstanding standby letters of credit, which were secured by $1.9 million in money market collateral accounts. This amount was recorded as restricted cash as of March 31, 2013.

In connection with our acquisition of Vortek Industries, Ltd. ("Vortek") in 2004, we became party to an agreement between Vortek and the Canadian Minister of Industries (the "Minister") relating to an investment in Vortek by Technology Partnerships Canada. Under the agreement, as amended, we, or Vortek (renamed Mattson Technology, Canada, Inc. ("MTC")) agreed to various terms, including (i) payment by us of a royalty to the Minister of 1.4 percent of net sales from certain Flash RTP products, up to a total of C$14.3 million (approximately $14.0 million based on the applicable exchange rate as of March 31, 2013), (ii) MTC through October 27, 2009 maintaining a specified average workforce of employees in Canada, making certain investments and complying with certain manufacturing, and (iii) certain other covenants concerning protection of intellectual property rights. Under the provisions of this agreement, if MTC is dissolved, files for bankruptcy or we, or MTC, do not materially satisfy the obligations pursuant to any material terms or conditions, the Minister could demand payment of liquidated damages in the amount of C$14.3 million less any royalties paid to the Minister. As of October 27, 2009, we were no longer subject to covenant (ii), as discussed above but are still subject to the remaining terms and conditions until the earlier of payment of royalty of C$14.3 million (approximately $14.0 million based on the applicable exchange rate as of March 31, 2013) or through December 31, 2020. The movement of our Canadian operations to Germany will not result in the dissolution of MTC.

We are a party to a variety of agreements, pursuant to which we may be obligated to indemnify other parties with respect to certain matters. Typically, these obligations arise in the context of contracts under which we may agree to hold other parties harmless against losses arising from a breach of representations or with respect to certain intellectual property, operations or tax-related matters. Our obligations under these agreements may be limited in terms of time and/or amount, and in some instances, we may have defenses to asserted claims and/or recourse against third parties for payments made. It is not possible to predict the maximum potential amount of future payments under these or similar agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each particular agreement. Historically, our payments under these agreements have not had a material effect on our financial position, results of operations or cash flows. We believe if it were to incur a loss in any of these matters, such loss would not have a material effect on our financial position, results of operations or cash flows.

We indemnify our directors and certain employees as permitted by law, and have entered into indemnification agreements with our directors and certain senior officers. We have not recorded a liability associated with these indemnification agreements, as we historically have not incurred any material costs associated with such indemnification agreements. Costs associated with such indemnification agreements may be mitigated, in whole or only in part, by insurance coverage that we maintain.

Government Agencies

As an exporter, we must comply with various laws and regulations relating to the export of products and technology from the U.S. and other countries having jurisdiction over our operations. In the U.S. these laws include the International Traffic in Arms Regulations ("ITAR") administered by the State Department's Directorate of Defense Trade Controls, the Export Administration Regulations ("EAR") administered by the Bureau of Industry and Security ("BIS"), and trade sanctions against embargoed countries and destinations administered by the U.S. Department of Treasury, Office of Foreign Assets Control ("OFAC"). The EAR governs products, parts, technology and software which present military or weapons proliferation concerns, so-called "dual use" items, and ITAR governs military items listed on the United States Munitions List. Prior to shipping certain items, we must obtain an export license or verify that license exemptions are available. In addition, we must comply with certain requirements related to documentation, record keeping, plant visits and hiring of foreign nationals.

As previously reported, in 2008 we self-disclosed to BIS certain inadvertent EAR violations. In April 2012, we entered into a settlement agreement with BIS that resolved in full all matters contained in our voluntary self-disclosure. Under the settlement agreement, we agreed to a civil penalty of $0.9 million of which we paid $0.3 million in May 2012. Payment of the remaining $0.6 million is suspended for a period of one year ending April 30, 2013 and will be waived provided that no violations occur during that period.

Litigation

In the ordinary course of business, we are subject to claims and litigation, including claims that we infringe third party patents, trademarks and other intellectual property rights. Although we believe that it is unlikely that any current claims or actions will have a material adverse impact on our operating results or our financial position, given the uncertainty of litigation, we cannot be certain of this. The defense of claims or actions against us, even if without merit, could result in the expenditure of significant financial and managerial resources.

We record a legal liability when we believe it is both probable that a liability has been incurred, and the amount can be reasonably estimated. We monitor developments in our legal matters that could affect the estimate we have previously accrued. Significant judgment is required to determine both probability and the estimated amount.