Personnel Changes at Infineon: Ulrich Pelzer Takes Over Investor Relations, Dr. Erk Thorsten Heyen Becomes Head of Corporate Strategy and Mergers & Acquisitions, and Dominik Asam Moves to Siemens Financial Services

Munich, Germany – July 25, 2005 – Effective October 1, 2005, Ulrich Pelzer (32), previously Senior Analyst for semiconductors and semiconductor equipment at the investment bank Lehman Brothers in London, will assume responsibility for Investor Relations at Infineon Technologies AG. Also from September 1, Dr. Erk Thorsten Heyen (39), until recently head of the Secure Mobile Solutions Business Group, will assume responsibility for Corporate Strategy and Mergers & Acquisitions. The current Head of Corporate Strategy, Investor Relations and Mergers & Acquisitions, Dominik Asam (36), is moving at his own request to the Managing Board of Siemens Financial Services. Business Administration and Economics graduate Ulrich Pelzer has been a Senior Analyst at the international investment bank Lehman Brothers in London since August 2000, with responsibility for the semiconductor and semiconductor equipment sectors. He began his career in July 1997 at BHF Bank AG in Frankfurt am Main, where, among others, he was Financial Analyst responsible for the IT market. During this time, Pelzer participated in the IPOs for several companies. Physics graduate Dr. Erk Thorsten Heyen joined Infineon in September 2003 and assumed global responsibility for the Secure Mobile Solutions Business Group. From 2001 to 2003, Heyen was CEO at Unit.Net AG. He began his career in 1992 at McKinsey&Company as a Member of the Telecommunication Practice, and from 1996 to 2001 held various managerial posts within Bertelsmann AG, including CFO, General Manager and in Corporate Development. Dominik Asam has been Head of Investor Relations, Mergers & Acquisitions and Corporate Ventures at Infineon since September 2003. Since January 2005, he has also been responsible for Corporate Strategy. In his two years at the company, Asam has made an essential contribution to Infineon's strategic development and substantially improved communications with the capital markets. Prior to moving to Infineon, Asam was at Goldman Sachs from 1996 in the Investment Banking Division in Frankfurt, New York and most recently London, where he was responsible from 2000 as Executive Director for investment banking for semiconductor companies in Europe.

About Infineon Infineon Technologies AG, Munich, Germany, offers semiconductor and system solutions for automotive, industrial and multimarket sectors, for applications in communi-cation, as well as memory products. With a global presence, Infineon operates through its subsidiaries in the US from San Jose, CA, in the Asia-Pacific region from Singapore and in Japan from Tokyo. In fiscal year 2004 (ending September), the company achieved sales of Euro 7.19 billion with about 35,600 employees worldwide. Infineon is listed on the DAX index of the Frankfurt Stock Exchange and on the New York Stock Exchange (ticker symbol: IFX). Further information is available at http://www.infineon.com