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                                                                    EXHIBIT 99.1


FOR IMMEDIATE RELEASE


Contacts:    Lisa Garber                        Kathleen Bela
             Corporate Communications           Investor Relations
             Lam Research Corporation           Lam Research Corporation
             Phone:   510/572-4538              Phone:   510/572-4566
             Fax:     510/572-2935              Fax:     510/572-6454
             e-mail:  lisa.garber@lamrc.com     e-mail:  kathleen.bela@lamrc.com


LAM RESEARCH CORPORATION ANNOUNCES SHARE REPURCHASE PROGRAM

FREMONT, Calif.--March 2, 1999--Lam Research Corporation (Nasdaq: LRCX), today
announced that its Board of Directors has authorized the repurchase, at
management's discretion, of up to 2 million shares of the company's common stock
from the public market or in private purchases. The purchases will take place
over a period through and including December 31, 2000. As of December 31, 1998,
the company had approximately 38 million shares of common stock outstanding. The
shares repurchased under this authorization will be used to reduce dilution
caused by the issuance of shares reserved under the company's stock option and
employee stock purchase plans.

Lam Research Corporation is a leading supplier of wafer fabrication equipment 
and services to the world's semiconductor industry. Lam's headquarters are 
located in Fremont, California.

                                     -more-
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LAM RESEARCH CORPORATION ANNOUNCES SHARE REPURCHASE PROGRAM..........PAGE 2 OF 2


The company's common stock trades on the Nasdaq National Securities Market under
the symbol "LRCX". Lam's World Wide Web address is http://www.lamrc.com.

This press release contains certain forward-looking statements which are subject
to the Safe Harbor provisions created by the Private Securities Litigation
Reform Act of 1995. Such forward-looking statements relate to the company's
intention to repurchase up to a number of shares of its outstanding common stock
over a period of time and under certain conditions. Such statements are based on
current expectations and are subject to risks, uncertainties, and changes in
condition which may effect the number of shares purchased and timing of such
purchases, including changes in market conditions and other risks detailed in
documents filed with the Securities and Exchange Commission, including
specifically the report on Form 10-K for the year ended June 30, 1998, and the
Form 10-Q for the quarter ended December 31, 1998. The company undertakes no
obligation to update the information in this press release.

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