MILPITAS, Calif., July 1, 2009 (BUSINESS WIRE)─KLA-Tencor Corporation (NASDAQ: KLAC) today announced that it will host its annual SEMICON West analyst briefing at the St. Regis Hotel in San Francisco on Wednesday, July 15, 2009 beginning at 10:00 a.m. PDT.

The meeting agenda will feature a business update by President and Chief Executive Officer Rick Wallace, followed by an audience question and answer session.

The event will also be available in its entirety to the public via a live webcast on the KLA-Tencor Web site. To listen to the live event, please visit the Investors page of the KLA-Tencor Web site at http://ir.kla-tencor.com/ at least 15 minutes prior to the event in order to register, download and install any necessary audio software. For those unable to attend the live broadcast, a replay, including presentation materials, will be available on the KLA-Tencor Web site within 24 hours after the event.

For more information regarding the event, please contact Alex Lin in KLA-Tencor Investor Relations at:
alex.lin@kla-tencor.com.

KLA-Tencor Analyst Briefing at SEMICON West 2009 Agenda
10:00 – 10:30 a.m.: Registration
10:30 – 11:00 a.m.: Presentation by President and CEO Rick Wallace
11:00 – 11:30 a.m.: Audience Q&A

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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