Infineon’s Multimedia Platform for Dual-mode Handsets Powers Newly Launched “SoftBank 705P”, GPRS/UMTS 3G Phone for Japanese market from Panasonic Mobile Communications

Munich, Germany, October 5, 2006 – Infineon Technologies AG (FSE/NYSE: IFX), a leading provider of communication ICs today announced that its GPRS/UMTS multimedia platform powers Panasonic Mobile Communications Co., Ltd. newest commercially available Softbank 705P mobile handset which SOFTBANK MOBILE Corp. launched these days for the Japanese market. Infineon’s scalable platform, the MP-EU (Multimedia Platform EDGE/UMTS) contains all the necessary hardware and software components of a mobile handset. It enables mobile phone manufacturers to quickly introduce a variety of UMTS models all based on the same core architecture significantly reducing design cycles and slashing time-to-market. “Infineon and Panasonic have a long track-record of successful cooperation and we are happy to expand our activities by bringing a common dual-mode 3G solution in the market.” said Prof. Dr. Hermann Eul, member of the Infineon Management Board and President of the Infineon Communication Solutions Business Group. “With the proven MP-EU solution, Infineon has demonstrated its capability to deliver an attractive and competitive dual-mode platform, which also fulfils the special requirements of the Japanese market to its customers.” The Softbank 705P, GPRS/UMTS dual-mode phone will be commercially available in Japan, a market well known for its challenging, high quality requirements. The phone supports the 3GPP Release 99 specifications, has achieved full conformance and has successfully passed interoperability and field testing with all the world's leading infrastructure vendors and operators. This achievement underscores Infineon’s position as a leading supplier of chipset and software solutions in the mobile phone market. Infineon’s MP-EU hardware reference design consists of the company’s state-of-the-art baseband, RF transceiver, power management and Bluetooth devices. The software platform consists of cutting-edge GPRS/UMTS dual-mode protocol stacks that are complemented by the APOXI® application and multimedia framework. All software modules are provided by Comneon, a wholly owned subsidiary of Infineon Technologies AG and a leading supplier of advanced software solutions for mobile communications. The names of actual companies and products mentioned herein may be the trademarks of their respective owners. APOXI is a registered trademark of COMNEON GmbH & Co. OHG, a wholly owned subsidiary of Infineon Technologies AG About Panasonic Mobile Communications Panasonic Mobile Communications Co., Ltd., whose headquarters are based in Yokohama, Japan, is a worldwide leader in the development and manufacture of mobile communications products. Panasonic has been developing cutting-edge technologies since its establishment in 1958, including the world's first 3G video handset for the Japanese market in 2001. Panasonic is committed in providing added-value solutions to end-users through its mobile communication products. For more information, please visit http://www.panasonic.co.jp/pmc/en Additional information on Infineon’s MP-EU platform is available at http://www.infineon.com/mp-eu, an overview about Infineon’s mobile solutions at http://www.infineon.com/wireless

About Infineon Infineon Technologies AG, Munich, Germany, offers semiconductor and system solutions for automotive, industrial and multimarket sectors, for applications in communication, as well as memory products through its subsidiary Qimonda. 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 2005 (ending September), the company achieved sales of Euro 6.76 billion with about 36,400 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 www.infineon.com. Further information on Qimonda is available at www.qimonda.com.