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Lam Research Corporation Hosts 2003 Analyst Meeting
June 23, 2003

Lam Research Corporation Hosts 2003 Analyst Meeting FREMONT, Calif., June 23, 2003-Lam Research Corporation (Nasdaq: LRCX), Fremont, Calif., today announced details of its 2003 Analyst Meeting, scheduled for Tuesday, July 15, 2003. The meeting will be held during SEMICON West.

The meeting will take place at The Argent Hotel in the Franciscan Ballroom, located at 50 Third Street, San Francisco, California 94103. The meeting is scheduled for 8:30 to 10:00 a.m. Pacific Time; doors will open at 8:00 a.m. for check-in.

For those not able to attend in person, the presentation will be webcast live and available on the Lam web site at www.lamrc.com. To access the webcast, select the 2003 Analyst Meeting link from the home page and follow the instructions. A replay of the webcast will be available for two weeks following the event, through July 29.

Advanced registration is required. To register, visit www.lamrc.com, select the 2003 Analyst Meeting link from the home page, and complete the registration form, or, register by telephone by calling 510-572-6461.

Lam Research Corporation is a leading supplier of wafer processing equipment and services to the worldwide semiconductor manufacturing industry. The Company's common stock trades on the Nasdaq National Market under the symbol "LRCX." Lam's World Wide Web address is http://www.lamrc.com.

Lam Research Corporation Contact:
Kathleen Bela, Investor Relations, phone: 510/572-4566, e-mail: kathleen.bela@lamrc.com

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