Infineon Named Top Supplier by Emerson

Neubiberg, Germany - November 20, 2008 - Infineon Technologies AG (FSE/NYSE: IFX) today announced that it has been named a Marquee Supplier by St. Louis based Emerson, a global leader in technology and engineering. The Emerson Marquee Supplier award recognizes the contributions and achievements of the top 38 global suppliers in meeting Emerson’s critical production and delivery needs around the world. Criteria for the Emerson Marquee Supplier Award, now in its second year, include superior quality and service; alignment with Emerson’s strategic initiatives; ability to meet the needs of multiple Emerson businesses from multiple locations around the world; willingness to integrate with Emerson’s new product development process; activity in support of lean supply chain initiatives; and senior management involvement. “Emerson’s ability to meet its customers’ needs around the world requires business partners who share our intensity of purpose and can deliver the highest levels of quality, creativity and responsiveness,” said Emerson Chief Operating Officer Ed Monser. “We are very pleased to recognize Infineon Technologies AG for its performance on our behalf in 2008.” Infineon primarily supplies Emerson's Network Power and Industrial Automation businesses with power management products for computing and telecommunications switched mode power supplies (SMPS), uninterruptable power supplies (UPS), industrial drives and motor controls. The company’s products enable increased efficiency and power density in Emerson's systems. “Infineon and Emerson share a common goal of using advanced technology to help address challenges in energy efficiency,” said Anton Mueller, Senior Vice President Sales, Marketing & Distribution at Infineon Technologies, who accepted the award. “We greatly value our partnership with Emerson and look forward to continuing collaboration and innovation.” About Emerson Emerson (NYSE:EMR), based in St. Louis, is a global leader in bringing technology and engineering together to provide innovative solutions to customers through its network power, process management, industrial automation, climate technologies, and appliance and tools businesses. Sales in fiscal 2008 were US $24.8 billion. For more information, visit www.Emerson.com.

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 2007 fiscal year (ending September), the company reported sales of Euro 7.7 billion (including Qimonda sales of Euro 3.6 billion) with approximately 43,000 employees worldwide (including approximately 13,500 Qimonda employees). 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).Further information is available at www.infineon.com.