KLA-Tencor Corporation (NASDAQ: KLAC) today announced operating results for its fourth quarter and fiscal year ended on June 30, 2009. KLA-Tencor reported GAAP net loss of $26 million and GAAP loss per share of $0.15 on revenue of $282 million for the fourth quarter of fiscal year 2009. For the year ended June 30, 2009, the company reported GAAP net loss of $523 million and GAAP loss per diluted share of $3.07 on revenue of $1.5 billion.

"We are encouraged by investments in technology development programs by customers at the leading edge as well as improved demand from our foundry customers," commented Rick Wallace, president and CEO of KLA-Tencor. "We continue to manage our business to align our cost structure with projected revenue levels and are focused on achieving non-GAAP breakeven by the end of calendar year 2009, while at the same time maintaining a high level of R&D investment to support our customers’ next-generation process control needs."

A reconciliation between GAAP operating results and non-GAAP operating results is provided following the financial statements that are part of this release. Non-GAAP results include the impact of stock-based compensation, but exclude the impact of acquisition, goodwill and intangible asset impairment, restatement, and restructuring related items.

KLA-Tencor will discuss the results for its fourth quarter and fiscal year 2009, along with its outlook, on a conference call today beginning at 2:00 p.m. Pacific Daylight Time. A webcast of the call will be available at: www.kla-tencor.com

Forward-Looking Statements:

Statements in this press release other than historical facts, such as statements regarding the encouragement derived from the investment in technology development programs witnessed in the June quarter (including without limitation the potential success of such technology development programs and whether such programs will result in future sales for KLA-Tencor) and from the improved demand seen in the June quarter from foundry customers (including without limitation the possibility that such improved demand will be sustained in future periods); the company’s ability to align its cost structure with projected revenue levels so as to achieve non-GAAP breakeven operating results by the end of the calendar year; future levels of investment in research and development by KLA-Tencor; and KLA-Tencor’s ability to successfully innovate, develop and sell new technologies and products that meet customer demands, are forward-looking statements, and are subject to the Safe Harbor provisions created by the Private Securities Litigation Reform Act of 1995. These forward-looking statements are based on current information and expectations, and involve a number of risks and uncertainties. Actual results may differ materially from those projected in such statements due to various factors, including but not limited to: the demand for semiconductors; the financial condition of the global capital markets and the general macroeconomic environment; new and enhanced product offerings by competitors; cancellation of orders by customers; the ability of KLA-Tencor’s research and development teams to successfully innovate and develop technology that is responsive to customer demands; the impact of local labor and employment laws on KLA-Tencor’s ability to complete, and realize the anticipated cost savings from, its recent global workforce reductions; unanticipated delays in the completion of KLA-Tencor’s facilities consolidation efforts or the implementation of other cost-reduction efforts; KLA-Tencor’s ability to successfully integrate and manage businesses that it acquires; and changing customer demands. For other factors that may cause actual results to differ materially from those projected and anticipated in forward-looking statements in this release, please refer to KLA-Tencor’s Annual Report on Form 10-K for the year ended June 30, 2008, subsequently filed Quarterly Reports on Form 10-Q and other filings with the Securities and Exchange Commission (including, but not limited to, the risk factors described therein). KLA-Tencor assumes no obligation to, and does not currently intend to, update these forward-looking statements.

About KLA-Tencor:

KLA-Tencor Corporation (NASDAQ: KLAC), a leading provider of process control and yield management solutions, partners with customers around the world to develop state-of-the-art inspection and metrology technologies. These technologies serve the semiconductor, data storage, compound semiconductor, photovoltaic, and other related nanoelectronics industries. With a portfolio of industry-standard products and a team of world-class engineers and scientists, the company has created superior solutions for its customers for over 30 years. Headquartered in Milpitas, California, KLA-Tencor has dedicated customer operations and service centers around the world. Additional information may be found at www.kla-tencor.com. (KLAC-F)

Use of Non-GAAP Financial Information:

The non-GAAP and supplemental information provided in this press release is a supplement to, and not a substitute for, KLA-Tencor’s financial results presented in accordance with United States GAAP.

To supplement KLA-Tencor’s condensed consolidated financial statements presented in accordance with GAAP, the company provides certain non-GAAP financial information, which is adjusted from results based on GAAP to exclude certain costs and expenses, as well as other supplemental information. The non-GAAP and supplemental information is provided to enhance the user’s overall understanding of KLA-Tencor’s operating performance and its prospects in the future. Specifically, KLA-Tencor believes the non-GAAP information provides useful measures to both management and investors regarding financial and business trends relating to KLA-Tencor’s financial performance by excluding certain costs and expenses that the company believes are not indicative of its core operating results. The non-GAAP information is among the budgeting and planning tools that management uses for future forecasting. The presentation of non-GAAP and supplemental information is not meant to be considered in isolation or as a substitute for results prepared and presented in accordance with United States GAAP.

To supplement our condensed consolidated financial statements presented in accordance with GAAP, we provide certain non-GAAP financial information, which is adjusted from results based on GAAP to exclude certain costs and expenses, as well as other supplemental information. The non-GAAP and supplemental information is provided to enhance the user’s overall understanding of our operating performance and our prospects in the future. Specifically, we believe the non-GAAP information provides useful measures to both management and investors regarding financial and business trends relating to our financial performance by excluding certain costs and expenses that we believe are not indicative of our core operating results. The non-GAAP information is among the budgeting and planning tools that management uses for future forecasting. The presentation of non-GAAP and supplemental information is not meant to be considered in isolation or as a substitute for results prepared and presented in accordance with United States GAAP.

a Acquisition related charges include amortization of intangible assets, inventory fair value adjustments, in-process research and development associated with acquisitions, and realized and unrealized gains resulting from Euro call option contracts entered into in connection with our acquisition of ICOS Vision Systems Corporation NV. Management believes that the expense associated with the amortization of acquisition related intangible assets is appropriate to be excluded because a significant portion of the purchase price for acquisitions may be allocated to intangible assets that have short lives, and exclusion of the amortization expense allows comparisons of operating results that are consistent over time for both KLA-Tencor’s newly acquired and long-held businesses. Management believes that it is appropriate to exclude inventory fair value adjustments, in-process research and development and gains and losses on foreign exchange contracts associated with business acquisitions as they are not indicative of ongoing operating results and therefore limit comparability. Management believes excluding these items helps investors compare our operating performance with our results in prior periods as well as with the performance of other companies.

b Restructuring, severance and other includes gains and costs associated with the company’s facilities divestment and consolidation program, reductions in force, entry into a severance and consulting agreement with the company’s former president/chief operating officer, and gains from sale of facilities, one-time inventory write off associated with the disposal of service inventory in excess of future need, and asset impairment (other than impairment of goodwill and intangible assets, which is included within the category described in note (d) below) from discontinuing or making available for sale certain acquired product lines. Management believes that it is appropriate to exclude those items as they are not indicative of ongoing operating results and therefore limit comparability. Management believes excluding these items helps investors compare our operating performance with our results in prior periods as well as with the performance of other companies.

c Restatement related charges include compensation related to reimbursement payments by KLA-Tencor to non-executive employees for penalty taxes under section 409A of the Internal Revenue Code, as well as legal and other expenses related to the stock option investigation, shareholder litigation and related matters. Management believes that it is appropriate to exclude those items as they are not indicative of ongoing operating results and therefore limit comparability. Management believes excluding these items helps investors compare our operating performance with our results in prior periods as well as with the performance of other companies.

d Goodwill and intangible asset impairment includes non-cash expense recognized as a result of the company’s annual testing for goodwill impairment performed in the second quarter of every fiscal year and testing for intangible asset impairment driven by certain macroeconomic and company-specific triggering events, as well as the impairment of goodwill and intangible assets as a result of discontinuing acquired products and making acquired products available for sale. Management believes that it is appropriate to exclude those items as they are not indicative of ongoing operating results and therefore limit comparability. Management believes excluding these items helps investors compare our operating performance with our results in prior periods as well as with the performance of other companies.

e Income tax effect of non-GAAP adjustments includes the income tax effects of the excluded items noted above. Management believes that it is appropriate to exclude the tax effects of the items noted above in order to present a more meaningful measure of non-GAAP net income.

f Non-recurring tax item includes the U.S. tax impact associated with the implementation of our global manufacturing strategy and a benefit from revision of the amount of undistributed earnings of foreign subsidiaries considered to be permanently reinvested outside the United States. Management believes that it is appropriate to exclude these items as they are not indicative of ongoing operating results and therefore limit comparability. Management believes excluding these items help investors compare our operating performance with our results in prior periods as well as with the performance of other companies.