4Q 2010 results: Sales from Continuing Operations of Euro 942 million with 18.2 percent Segment Result margin

Quarterly revenue up 6 percent sequentially Segment Result of Euro 171 million, a 24 percent increase from prior quarter Dividend per share of 10 Euro Cents for 2010 fiscal year FY 2011 outlook: Revenue forecast to grow towards 10 percent with mid to high teens total Segment Result margin Neubiberg, Germany – November 16, 2010 – Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) today reported results for the fourth quarter of the 2010 fiscal year, ended September 30, 2010. Full version of this news release (incl. financial data / PDF)

About Infineon Infineon Technologies AG, Neubiberg, Germany, offers semiconductor and system solutions addressing three central challenges to modern society: energy efficiency, mobility, and security. In the 2010 fiscal year (ending September 30), the company reported sales of Euro 3.295 billion with approximately 26,650 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 (ticker symbol: IFX) and in the USA on the over-the-counter market OTCQX International Premier (ticker symbol: IFNNY). Further information is available at www.infineon.com.