Infineon First Quarter FY 2012 sales and earnings slightly ahead of guidance

Quarterly sales of Euro 946 million down from Euro 1.038 billion Superior growth and profitability: 14 percent growth in calendar year 2011 vs 3 percent for industry excluding memories and microprocessors 14.9 percent Total Segment Result Margin in-line with through-cycle target Sustained efforts for future success: counter-cyclical investments of Euro 294 million to enable move to highly competitive 300mm manufacturing; sustaining high R&D and selling expense Strong returns: 27 percent RoCE for the quarter; 1.0 percent reduction in fully diluted share count Outlook for the second quarter of the FY 2012: sales to be flat to down slightly; Total Segment Result Margin to be down broadly by 1 percentage point Full version of news release (incl. financial data)

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 2011 fiscal year (ending September 30), the company reported sales of Euro 4.0 billion with close to 26,000 employees worldwide. 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.