MILPITAS, Calif., May. 21, 2009 — KLA-Tencor Corporation (NASDAQ: KLAC), today announced that the company will provide a live webcast of its presentation at New York’s Bank of America and Merrill Lynch U.S. Technology Conference at 1:30 p.m. EDT on June 4, 2009.

The webcast will be available on the “Investors” page of KLA-Tencor’s Web site at www.kla-tencor.com.


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)

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