Professor Johannes Feldmayer Leaves Infineon Supervisory Board

Neubiberg, Germany – February 26, 2009 – Effective immediately and at his own request, Professor Johannes Feldmayer has stepped down from the Supervisory Board of Infineon Technologies AG (FSE/NYSE: IFX). He has served on Infineon’s Supervisory Board since January 25, 2005. Infineon thanks Feldmayer, a renowned industry authority and strategy expert, for his professionalism and competency in the execution of his duties as a member of the Supervisory Board.

About Infineon Infineon Technologies AG, Neubiberg, Germany, offers semiconductor and system solutions addressing three central challenges to modern society: energy efficiency, communications, and security. In the 2008 fiscal year (ending September), the company reported sales of Euro 4.3 billion with approximately 29,100 employees worldwide. With a global presence, Infineon operates through its subsidiaries in the U.S. from Milpitas, CA, in the Asia-Pacific region from Singapore, and in Japan from Tokyo. Infineon is listed on the Frankfurt Stock Exchange and on the New York Stock Exchange (ticker symbol: IFX).