Lam Research Corporation

Lam Announces Date for Releasing March Quarter Financial Results

FREMONT, Calif., March 29, 2006—Lam Research Corporation (NASDAQ: LRCX) today announced it will release the March 2006 quarter financial results on Wednesday, April 12, 2006. Management's quarterly company update will be held on April 12, beginning at 2:00 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 http://www.lamresearch.com 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 Lam Investor Relations Department, Investor.Relations@lamrc.com, 510/572-2106.

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 provider 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. Lam is a NASDAQ-100® company. The Company's World Wide Web address is http://www.lamresearch.com.

Lam Research Corporation Contact:
Julie Cimino,
Investor Relations,
phone: 510/572-1615,
e-mail: julie.cimino@lamrc.com