Infineon Reorganizes Responsibilities Within the Management Board: Kin Wah Loh Assumes Responsibility for Memory Products Group, Professor Dr. Hermann Eul is Appointed Deputy Management Board Member

Munich - July 28, 2005 - Infineon Technologies AG (FSE/NYSE: IFX) today announced that the Supervisory Board has approved a reorganization of the responsibilities within the Management Board and the appointment of Prof. Dr. Hermann Eul. Kin Wah Loh, Management Board Member and until present responsible for the Communications Business Group, will assume responsibility for the Memory Products Business Group. Professor Eul, until present Group Vice President and General Manager of the Communications Business Group is appointed Deputy Management Board Member and in this capacity he will take over the responsibilities of Kin Wah Loh. “Kin Wah Loh not only has long-standing knowledge of the company and the challenges posed by the semiconductor market, since entering the Management Board he has persistently and forcefully driven ahead the successful restructuring of the Communications Business Group. He has got all it takes to further strengthen the memory products segment,” said Dr. Wolfgang Ziebart, Chief Executive Officer of Infineon Technologies AG. “Professor Eul will continue the work of Kin Wah Loh. With the successful turnaround in wireline business, he has proved his expertise for the new task.” In 1997 Kin Wah Loh was the first member of staff from Asia to be appointed a Managing Director of Siemens Microelectronics. In this position he changed to Infineon where he soon assumed the responsibility for the Asia Pacific region. From 1993 to 1996 he was in charge of the production of Siemens Components Singapore. During this time Siemens built production facilities in Batam, Indonesia and Wuxi, China. In 1995 he received the Siemens Semiconductor Total Quality Management Award, the highest accolade worldwide conferred by the Siemens Semiconductor Group. In the course of his successful career at Siemens and Infineon, Professor Hermann Eul has worked in almost all the sectors of communications technology. Professor Eul was General Manager of the Digital TeleCom and Data Com ICs operations until the Semiconductor Group was separated from Siemens in 1999. When Infineon was formed as a spin-off, he took on the Wireless Baseband and Systems Business Group as Vice President and General Manager. From 2001 to 2002 he was responsible for Security & Chip Card ICs operations as CEO. In 2003 he was appointed C4 professor at the University of Hanover as the Head of the Institute for High Frequency Technology and Radio Systems. In 2004 he returned to Infineon where he first co-managed the Wireline Communications Business Group as Senior Vice President and then, following the reorganization, the Communications Business Group as a member of the management. Professor Eul studied Electrical Engineering (Communications Engineering and High-Frequency Engineering) and has a doctorate in engineering.

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. 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 2004 (ending September), the company achieved sales of Euro 7.19 billion with about 35,600 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.