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Lam Research Corporation Ranks #7 on 2007 List of "100 Fastest-Growing Technology Companies"
May 25, 2007

FREMONT, Calif., May 25, 2007—Lam Research Corporation (NASDAQ: LRCX) today announced that the Company ranked #7 on Business 2.0's 2007 list of "100 Fastest-Growing Technology Companies," known as the "B2 100." Lam also ranked #9 for earnings growth on this year's list.

"We are honored once again to join this prestigious list of technology leaders – companies whose innovative approaches to business have enabled them to differentiate and achieve rapid growth," stated Steve Newberry, president and chief executive officer of Lam. "I am very proud of our values-based culture and the high level of trust our employees have established with our customers, which has enabled us to anticipate customer needs and deliver superior products and services. Our rise to the #7 position this year validates the effectiveness of our current approach, while we work to continuously improve our ability to deliver increasing value to our customers, shareholders, and employees."

For the B2 100, Business 2.0 selected from among more than 2,000 technology companies that have been publicly traded on a U.S. stock exchange for at least 3 years. Companies considered had market capitalization of at least $50 million and positive operating cash flow for the past 12 months. Zacks Investment Research (Chicago) ranked qualified companies based on four financial criteria: growth in revenue, profit, and operating cash flow during the past 3 years and 12-month stock return as of December 2006. Cash flow growth was weighted at 40 percent; other criteria were weighted at 20 percent each.

The full list and company rankings are available on www.business2.com. The full story will be published in the June 2007 print issue of Business 2.0, published by the Time, Inc. Business and Finance Network.

Statements made in this press release which are not statements of historical fact are forward-looking statements and are subject to the safe harbor provisions created by the Private Securities Litigation Reform Act of 1995. Such forward-looking statements relate, but are not limited, to our ability to anticipate customer needs and to deliver superior products and services, the continuing effectiveness of our current approach and our future ability to deliver increasing value to customers, shareholders and employees. Some important factors that may influence these statements include: changes in the semiconductor industry, new product introductions from our competitors, unanticipated technology changes and our plans and capability for reacting to such changes. These forward-looking statements are based on current expectations and are subject to uncertainties and changes in condition, significance, value and effect as well as 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 25, 2006, and Form 10-Q for the quarter ended March 25, 2007, which could cause actual results to vary from expectations. The Company undertakes no obligation to update the information or statements made in this press release.

Lam Research Corporation is a major supplier of wafer fabrication equipment and services to the world's semiconductor industry and market share leader in plasma etch. The Company applies its expertise for emerging 3D IC applications and a wide range of MEMS-based processes and has developed technology in market areas adjacent to etch, including wet clean, bevel clean, strip, and patterning for extending the capability of advanced lithography. Lam's common stock trades on The NASDAQ National Market® under the symbol LRCX. Lam is a NASDAQ-100® company. For more information visit http://www.lamresearch.com.

Company Contact:
Dan Carpenter
Corporate Communications
phone: 510/572-5241
e-mail: dan.carpenter@lamresearch.com

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