KLA-Tencor Announces Live Webcast of Upcoming Investor Presentation

    Business Editors
    7th Annual Needham Growth Conference

    SAN JOSE, Calif.--(BUSINESS WIRE)--Jan. 7, 2005--KLA-Tencor Corp. (Nasdaq:KLAC), the world leader in yield management and process control solutions for semiconductor manufacturing and related industries, today announced that the company will provide a live webcast of its presentation at the Needham Growth Conference, to be held on Tuesday, January 11, 2005, at 7:00 a.m. (PT).
    The webcast will be available on KLA-Tencor's website at http://www.kla-tencor.com, on the Investors page.

    About KLA-Tencor: KLA-Tencor is the world leader in yield management and process control solutions for semiconductor manufacturing and related industries. Headquartered in San Jose, Calif., the company has sales and service offices around the world. An S&P 500 company, KLA-Tencor is traded on the Nasdaq National Market under the symbol KLAC. Additional information about the company is available on the Internet at http://www.kla-tencor.com.

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CONTACT: KLA-Tencor Corp. Cary Halsted, 408-875-2406 (Investment Community) cary.halsted@kla-tencor.com Uma Subramaniam, 408-875-5473 (Media) uma.subramaniam@kla-tencor.com

KEYWORD: CALIFORNIA TRACK INDUSTRY KEYWORD: HARDWARE SOFTWARE TRADESHOW CONFERENCE CALLS SOURCE: KLA-Tencor Corp.

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