Infineon expects capital increase to be fully placed

Neubiberg, Germany – August 4, 2009 – Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) announces that a fund managed by Apollo Global Management LLC will subscribe for the approximately 14 million shares from the capital increase, which are still available as a result of unexercised subscription rights, at a subscription price of Euro 2.15. This corresponds to approximately 1.3 percent of Infineon’s increased share capital totaling Euro 2.173 billion, assuming the capital increase is fully placed. This move takes the total number of shares which are issued under the capital increase at a subscription price of Euro 2.15 to 337,000,000. In addition to the shares taken by Apollo, approximately 323 million shares are purchased by the exercise of subscription rights, leading to a 100 percent exercise of the subscription rights, including Apollo. The gross amount from the capital increase presumably will be around Euro 725 million. Infineon expects trading in the new shares issued pursuant to the rights issue to begin on the Frankfurt Stock Exchange on Friday, August 7, 2009. “This overall successful completion of our refinancing underlines the confidence of our shareholders in our company. The result is a stable financial situation that creates the base for a successful future of Infineon,” says Peter Bauer, CEO of Infineon Technologies AG.

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 in continuing operations. 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. Disclaimer Infineon Technologies AG has filed a registration statement (including a prospectus) with the U.S. Securities and Exchange Commission (“SEC”) for the offering to which this communication relates. Before you invest, you should read that registration statement (including the prospectus) for more complete information about Infineon and this offering. You may get these documents for free by visiting EDGAR on the SEC website at www.sec.gov or on Infineon’s website at www.infineon.com by clicking “Investor”. Alternatively, Infineon will arrange to send you the prospectus if you request it by calling +49-89-234-26655 or emailing investor.relations@infineon.com. In Germany, this publication constitutes neither a prospectus, nor an offer to sell nor a solicitation of an offer to buy securities of Infineon, and it is not a substitute for the prospectus. The offer of shares of Infineon in Germany was made solely by means of, and on the basis of, a securities prospectus. An investment decision regarding the publicly offered securities of Infineon in Germany should only be made on the basis of the securities prospectus. A securities prospectus which has been approved by the German Federal Financial Supervisory Authority has been published and is available free of charge on Infineon’s website (www.infineon.com).