Lam Announces Date for Releasing December Quarter Financial Results
January 06, 2005

FREMONT, Calif., January 6, 2005--Lam Research Corporation (Nasdaq: LRCX), Fremont, Calif., today announced it will release the December 2004 quarter financial results on Thursday, January 20, 2005. Management's quarterly company update will be held on January 20, beginning at 1:15 p.m. Pacific Time.

Attend by Telephone
Dial 303/262-2193 approximately 10 minutes prior to the start of the meeting and an operator will connect you to the conference call.

Attend by Internet
To access the webcast, visit the Investors section of Lam's web site at and select the Calendar/Webcasts button to view the details.

Replay Information
A webcast replay will be available on the Lam web site for 90 days.

Contact Information
Contact the Lam Investor Relations Department by email at or by telephone at 510/572-2106 with questions.

The date and time are subject to change. Please visit the Investors section of Lam's web site and select the Calendar/Webcasts button to view the latest presentation schedule, or select the Email Alerts button and register your email address to receive automated notifications of upcoming webcasts, news releases, and SEC filings.

Lam Research Corporation is a major supplier of wafer fabrication equipment and services to the world's semiconductor industry. Lam's common stock trades on the Nasdaq National Market under the symbol LRCX. The Company's World Wide Web address is

Lam Research Corporation Contact:
Julie Cimino, Investor Relations, phone: 510/572-1615, e-mail: