Lam Named to Business Ethics' 100 Best Corporate Citizens List
May 01, 2006

FREMONT, Calif., May 1, 2006—Lam Research Corporation (NASDAQ: LRCX) today announced that it has been named one of the "100 Best Corporate Citizens" by Business Ethics magazine for the second consecutive year. The list recognizes companies with exemplary practices in the area of corporate social responsibility.

Published annually by Business Ethics in its spring issue, the report identifies companies that serve various stakeholder groups with excellence and integrity. Firms considered are selected from the Russell 1000 Index—the 1,000 largest publicly traded companies in the United States, the S&P 500 Index, and the Domini 400 Social Index. Companies are ranked based on their performance in serving eight stakeholder categories: shareholders, community, governance, diversity, employees, environment, human rights, and product.

"We devote significant attention to fostering a values-based workplace that influences every area of our business," stated Steve Newberry, president and chief executive officer of Lam, "and it is gratifying to be recognized by Business Ethics for excellence and integrity in our business practices. Lam is committed to providing our industry with the most innovative technologies and to making a positive difference in the communities where our employees and customers live and work."

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 to the Company's innovative technologies and its effect on communities. Some factors that may affect these forward-looking statements include: changing business conditions in the semiconductor industry and the overall economy and our plans for reacting to those 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 26, 2005, and Form 10-Q for the quarter ended December 25, 2005, 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. 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

Lam Research Corporation Contact: Shawn Lynch, Corporate Communications, phone: 816/500-8191, e-mail: