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Lam Research Corporation Announces Preliminary Final Results of Public Tender Offer for Registered Shares of SEZ Holding AG
February 27, 2008

FREMONT, Calif., February 27, 2008 – Lam Research Corporation (NASDAQ: LRCX) today announced, based on preliminary results, that at the end of the additional acceptance period on February 26, 2008, at 4:00 p.m. Central European Time (CET), 15,954,204 SEZ shares corresponding to 94.26% of all issued SEZ shares, and all SEZ shares that could be created through the exercise of all outstanding employee stock options to purchase SEZ shares, have been tendered into the offer.

Lam has obtained the clearances from competition authorities required for completing the offer. Subject to remaining conditions that must be satisfied and are described in the prospectus offer, Lam expects to complete the offer in March, 2008. SEZ will become a division within Lam Research offering a full spectrum of leading edge Single Wafer clean solutions.

This release is neither a preliminary nor a final announcement of the final results of the offer in accordance with the applicable Swiss takeover laws and has no effect under such laws or any other takeover laws whatsoever. Reference is made to the respective official announcements, copies of which will be posted at www.transactioninfo.info.

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 Global Select Market&#8482 under the symbol LRCX. Lam is a NASDAQ-100 company. The Company's World Wide Web address is www.lamresearch.com.

The SEZ Group is the leading provider of single-wafer wet-clean processing solutions for the semiconductor industry, with an installed base of over 1,200 tools. The company maintains operations in Asia Pacific, Europe, Japan, and North America. Since 1996, registered shares of SEZ Holding Ltd. have been traded on the SWX Swiss Exchange under the symbol SEZN. Additional information about the company is available on the Internet at www.sez.com.

Copies of the purchase offer and prospectus and of the announcements under Swiss law relating to the results of the offer and upon which this release is based can be accessed at www.transactioninfo.info.

Lam Research Corporation Contact:
Carol Raeburn, Senior Director, Investor Relations
Phone: 510/572-4450, e-mail: carol.raeburn@lamresearch.com

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