Filed by: LSI Logic Corporation
pursuant to Rule 425
under the Securities Act of 1933 and
deemed filed pursuant to Rule 14a-12
under the Securities Exchange Act of 1934
Subject Company: LSI Logic Corporation
Commission File No. 1-10317
MILPITAS, Calif., March 26, 2007 — LSI Logic Corporation (NYSE: LSI) announced today that it has named Dr. Claudine Simson to the post of executive vice president and chief technology officer. She will report to Abhi Talwalkar, LSI president and chief executive officer.
Dr. Simson most recently served as chief technology officer at Motorola, Inc.’s Semiconductor Products Sector and its spin-off, Freescale Semiconductor. She was responsible for leading worldwide research and development of semiconductor technologies that enabled product differentiation in networking, communications, automotive, and wireless applications. Prior to joining Motorola, Dr. Simson held senior executive positions at Nortel Networks over a 23-year career, including general manager of Nortel’s semiconductor business and vice president in charge of all technology research, spanning a $25B product portfolio.
“I am delighted to have Claudine join the new LSI as we develop a rich pipeline of technologies to power products that will seamlessly bring people, information and digital content together,” said Talwalkar. “Her extensive industry experience and impressive track record of success will be invaluable to us as we extend our platform franchises in our chosen markets.”
Dr. Simson will be responsible for charting the future technology and architectural advancements that will enable LSI to enhance its competitive advantage and extend its thought leadership and market position in focused growth areas. She will also lead strategic technology collaborations with key customers, business partners and leading universities.
Dr. Simson earned a bachelor’s degree in electrical engineering from INSA, Toulouse, France, and received her doctorate in semiconductor physics from the same institution. She has been awarded three honorary doctorates and was inducted into the Hall of Fame of Women in Technology International in 1999. Additionally, Dr. Simson is a Fellow of the Royal Society of Canada (Academy of Science) and a Distinguished Fellow of the Fields Institute. She was named Chevalier de l’Ordre National du Mérite by the President of France in 1998, honoring her contributions to the worldwide advancement of science and technology.



This communication may be deemed to be solicitation material in respect of the proposed transaction between Agere Systems Inc. (“Agere”) and LSI Logic Corporation (“LSI”). In connection with the proposed transaction, LSI has filed with the Securities and Exchange Commission (the “SEC”) a Registration Statement on Form S-4 (the “Registration Statement”), which includes a definitive proxy statement/prospectus, dated February 5, 2007, and related materials to register the shares of LSI common stock to be issued in the merger. THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/PROSPECTUS CONTAIN IMPORTANT INFORMATION ABOUT LSI, AGERE, THE TRANSACTION AND RELATED MATTERS. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/PROSPECTUS CAREFULLY. Investors and security holders may obtain free copies of the Registration Statement, the Joint Proxy Statement/Prospectus and other documents filed with the SEC by LSI and Agere through the website maintained by the SEC at http://www.sec.gov. In addition, free copies of the Registration Statement, the Joint Proxy Statement/Prospectus and other documents may be obtained on the Agere website at http://www.agere.com and on the LSI website at http://www.lsi.com. The Registration Statement, the Joint Proxy Statement/Prospectus and other relevant documents may also be obtained free of charge from Agere by directing such request to Investor Relations, Agere Systems Inc., 1110 American Parkway N.E., Allentown Pennsylvania 18109 and from LSI by directing such request to Investor Relations, LSI Logic Corporation, 1621 Barber Lane, Milpitas, California 95035. The contents of the websites referenced above are not deemed to be incorporated by reference into the Registration Statement or the Joint Proxy Statement/Prospectus. Agere, LSI and their respective officers, directors and employees may be deemed to be participants in the solicitation of proxies from their respective stockholders with respect to the proposed transaction. Information regarding the interests of these officers, directors and employees in the proposed transaction will be included in the Joint Proxy Statement/Prospectus.
Cautionary Statement Regarding Forward-Looking Statements
This document contains forward-looking statements within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. These statements are based on management’s current expectations and beliefs and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. The forward-looking statements contained in this document include statements about future financial and operating results; benefits of the transaction to customers, shareholders and employees; potential synergies and cost savings resulting from the transaction; the ability of the combined company to drive growth and expand customer and partner relationships and other statements regarding the proposed transaction. These statements are not guarantees of future performance, involve certain risks, uncertainties and assumptions that are difficult to predict, and are based upon assumptions as to future events that may not prove accurate. Therefore, actual outcomes and results may differ materially from what is expressed herein. For example, if LSI and Agere do not each receive required shareholder approval or the parties fail to satisfy other conditions to closing, the transaction will not be consummated. In any forward-looking statement in which LSI or Agere expresses an expectation or belief as to future results, such expectation or belief is expressed in good faith and believed to have a reasonable basis, but there can be no assurance that the statement or expectation or belief will result or be achieved or accomplished. The following factors, among others, could cause actual results to differ materially from those described in the forward-looking statements: failure of the LSI and Agere shareholders to approve the proposed merger; the challenges and costs of closing, integrating, restructuring and achieving anticipated synergies; the ability to retain key employees; and other economic, business, competitive, and/or regulatory factors affecting the businesses of LSI and Agere generally, including those set forth in the filings of LSI and Agere with the Securities and Exchange Commission, especially in the “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” sections of their respective annual reports on Form 10-K and quarterly reports on Form 10-Q, their current reports on Form 8-K and other SEC filings. LSI and Agere are under no obligation to (and expressly disclaim any such obligation to) update or alter their forward-looking statements whether as a result of new information, future events, or otherwise.



About LSI Logic
LSI Logic Corporation (NYSE: LSI) is a leading provider of silicon-to-system solutions that are used at the core of products that create, store and consume digital information. LSI offers a broad portfolio of capabilities including custom and standard product ICs, host bus and RAID adapters, storage area network solutions and software applications. LSI products enable leading technology companies in the Storage and Consumer markets to deliver some of the most advanced and well-known electronic systems in the market today. More information is available at www.lsi.com.
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Editor’s Notes:
  1.   All LSI Logic news releases (financial, acquisitions, manufacturing, products, technology etc.) are issued exclusively by PR Newswire and are immediately thereafter posted on the company’s external website, http://www.lsi.com.
  2.   The LSI Logic logo design is a registered trademark of LSI Logic Corporation.
  3.   All other brand or product names may be trademarks or registered trademarks of their respective companies.