Annual ReporT 2008 on form 20-f Infineon Technologies Ag PUBLISHED BY InfInEon TEcHnoLogies Ag Am Campeon 1 – 12, 85579 Neubiberg/Munich Annual Report 2008 on Form 20-F Printed in Germany 2008 on form 20-f T or ep r ual Ann ° g A ies og L no H c E on T E n I Inf UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR (g) OF THE SECURITIES EXCHANGE ACT OF 1934 n OR ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 ≤ For the fiscal year ended September 30, 2008 OR TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to . n OR SHELL COMPANY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 n Date of event requiring this shell company report . Commission file number: 1-15000 Infineon Technologies AG (Exact name of Registrant as specified in its charter) Federal Republic of Germany (Jurisdiction of incorporation or organization) Am Campeon 1-12, D-85579 Neubiberg Federal Republic of Germany (Address of principal executive offices) (Name, Telephone, E-mail and/or Facsimile number and Address of Company Contact Person) Securities registered or to be registered pursuant to Section 12(b) of the Act: Name of each exchange Title of each class on which registered American Depositary Shares, each representing New York Stock Exchange one ordinary share, notional value e2.00 per share Ordinary shares, notional value e2.00 per share* New York Stock Exchange * Listed, not for trading or quotation purposes, but only in connection with the registration of American Depositary Shares pursuant to the requirements of the Securities and Exchange Commission Securities registered or to be registered pursuant to Section 12(g) of the Act: None Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act: None Indicate the number of outstanding shares of each of the issuer’s classes of capital or common stock as of the close of the period covered by the annual report. 749,728,635 ordinary shares, notional value e2.00 per share Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ≤ No n If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. Yes n No ≤ Note — Checking the box above will not relieve any registrant required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 from their obligations under those Sections. Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ≤ No n Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer.See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer ≤ Accelerated filer n Non-accelerated filer n Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing: U.S. GAAP ≤ International Financial Reporting Standards as issued by the International Accounting Standards Board n Other n If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow. Item 17 n Item 18 ≤ If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes n No ≤ (APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS) Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court. Yes n No n (This page intentionally left blank) INFINEON TECHNOLOGIES AG ANNUAL REPORT ON FORM 20-F FOR THE FISCAL YEAR ENDED SEPTEMBER 30, 2008 (This page intentionally left blank) CROSS REFERENCES TO FORM 20-F Page PART I: Item 1: Identity of Directors, Senior Management and Advisers ...................... n/a Item 2: Offer Statistics and Expected Timetable ................................. n/a Item 3: Key Information: Selected Financial Data ............................................. 1 Exchange Rate Information .......................................... 114 Risk Factors ..................................................... 40 Item 4: Information on the Company: History and Development of the Company . ............................. 52 Business Overview ................................................ 55 Organizational Structure............................................. 111 Property, Plant and Equipment ........................................ 66,83 Item 4A: Unresolved Staff Comments .......................................... none Item 5: Operating and Financial Review and Prospects ............................ 2 Operating Results ................................................. 10 Liquidity and Capital Resources ....................................... 21 Research and Development; Patents and Licenses ......................... 71 Trend Information. ................................................. 34 Off-Balance Sheet Arrangements ...................................... 24 Contractual Obligations ............................................. 24 Item 6: Directors, Senior Management and Employees: Directors and Senior Management ..................................... 85,88 Compensation . ................................................. 99 Board Practices . ................................................. 90 Employees....................................................... 87 Share Ownership . ................................................. 100 Item 7: Major Shareholders and Related Party Transactions: Principal Shareholders .............................................. 102 Related Party Transactions........................................... 103 Item 8: Financial Information ............................................... F-1 Litigation ........................................................ 80 Dividend Policy . ................................................. 112 Significant Changes ................................................ 112 Item 9: The Offer and Listing: Price History of the Stock ............................................ 116 Markets......................................................... 115 Item 10: Additional Information: Articles of Association .............................................. 105 Material Contracts ................................................. 123 Exchange Controls................................................. 120 Taxation ........................................................ 115 Documents on Display .............................................. 121 Subsidiary Information .............................................. 114 Item 11: Quantitative and Qualitative Disclosure About Market Risk.................... 32 Item 12: Description of Securities Other Than Equity Securities....................... n/a PART II: Item 13: Defaults, Dividend Arrearages and Delinquencies .......................... none Item 14: Material Modifications to the Rights of Security Holders and Use of Proceeds ..... none Item 15: Controls and Procedures ............................................ 121 Item 16A: Audit Committee Financial Expert ...................................... 122 Item 16B: Code of Ethics . ................................................. 122 Item 16C: Principal Accountant Fees and Services ................................. 122 Item 16D: Exemption from the Listing Standards for Audit Committees .................. 123 Item 16E: Purchases of Equity Securities by the Issuer and Affiliated Purchasers . ......... none PART III: Item 18: Financial Statements ............................................... F-1 Item 19: Exhibits (See Exhibit Index) .......................................... — i CONTENTS Page Cross References to Form 20-F.................................................... i Presentation of Financial and Other Information ........................................ iii Selected Consolidated Financial Data ............................................... 1 Operating and Financial Review ................................................... 2 Overview of the 2008 Fiscal Year ................................................. 2 Our Business................................................................ 5 The Semiconductor Industry and Factors that Impact Our Business........................ 7 Results of Operations ......................................................... 10 Financial Condition ........................................................... 19 Financial Ratios .............................................................. 20 Liquidity.................................................................... 21 Capital Requirements.......................................................... 24 Employees................................................................