UNITED STATES OF AMERICA                       v. INFINEON TECHNOLOGIES AG,                      Defendant.

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Case No. 04-299 (PJH) PLEA AGREEMENT San Francisco Venue

The United States of America and INFINEON TECHNOLOGIES AG ("Defendant"), a corporation organized and existing under the laws of the Federal Republic of Germany ("Germany"), hereby enter into the following Plea Agreement pursuant to Rule 11(c)(1)(C) of the Federal Rules of Criminal Procedure ("Fed. R. Crim. P."):

1. The Defendant understands its rights:

1. to be represented by an attorney;

2. to be charged by Indictment;

3. as a corporation organized and existing under the laws of Germany, to decline to accept service of the Summons in this case, and to contest the jurisdiction of the United States to prosecute this case against it in the United States District Court for the Northern District of California;

4. to plead not guilty to any criminal charge brought against it;

5. to have a trial by jury, at which it would be presumed not guilty of the charge and the United States would have to prove every essential element of the charged offense beyond a reasonable doubt for it to be found guilty;

6. to confront and cross-examine witnesses against it and to subpoena witnesses in its defense at trial;

7. to appeal its conviction if it is found guilty; and

8. to appeal the imposition of sentence against it.

2. The Defendant waives the rights set out in Paragraph 1(b)-(g) above, including all jurisdictional defenses to the prosecution of this case, and agrees voluntarily to consent to the jurisdiction of the United States to prosecute this case against it in the United States District Court for the Northern District of California. The Defendant agrees to have its sentence determined under the United States Sentencing Guidelines ("U.S.S.G.") and waives all constitutional challenges to the validity of the U.S.S.G. The Defendant waives any right it may have to have facts that determine its statutory maximum sentence or Guidelines fine range under the U.S.S.G. (including any facts used to determine its offense level, base fine amount, culpability score, any specific offense characteristic or other enhancement or adjustment, or any upward departure under the U.S.S.G., as well as any pecuniary gain or loss resulting from the charged offense) alleged in an indictment and found by a jury beyond a reasonable doubt. The Defendant agrees that facts that determine its statutory maximum sentence or Guidelines fine range will be found by the court at sentencing by a preponderance of the evidence and that the court may consider any reliable evidence, including hearsay, in making such determinations. The Defendant also waives the right to appeal the imposition of sentence against it, so long as the sentence imposed is consistent with the recommendation in Paragraph 8 of this Plea Agreement. Further, pursuant to Fed. R. Crim. P. 7(b), the Defendant will waive indictment and plead guilty at arraignment to a one-count Information to be filed in the United States District Court for the Northern District of California. The Information will charge the Defendant with participating in a conspiracy in the United States and elsewhere to suppress and eliminate competition by fixing the prices of Dynamic Random Access Memory ("DRAM") to be sold to certain original equipment manufacturers of personal computers and servers ("OEMs") from on or about July 1, 1999, to on or about June 15, 2002, in violation of the Sherman Antitrust Act, 15 U.S.C. § 1.

3. The Defendant, pursuant to the terms of this Plea Agreement, will plead guilty to the criminal charge described in Paragraph 2 above and will make a factual admission of guilt to the Court in accordance with Fed. R. Crim. P. 11, as set forth in Paragraph 4 below.

4. Had this case gone to trial, the United States would have presented evidence to prove the following facts:

1. For purposes of this Plea Agreement, the "relevant period" is that period from on or about July 1, 1999, to on or about June 15, 2002. During the relevant period, the Defendant was a corporation organized and existing under the laws of Germany. The Defendant has its principal place of business in Munich, Germany.

2. DRAM is the most commonly used semiconductor memory product. DRAM provides high-speed storage and retrieval of electronic information in personal computers, servers, and other devices. During the relevant period, the Defendant (including its subsidiaries) was a producer of DRAM and was engaged in the sale of DRAM in the United States and elsewhere.

3. During at least certain periods of time during the relevant period, the Defendant, through certain of its officers and employees, participated in a conspiracy in the United States and elsewhere among certain DRAM producers, the primary purpose of which was to fix the price of DRAM sold to certain OEMs. The conspiracy directly affected these OEMs in the United States: Dell Inc., Hewlett-Packard Company, Compaq Computer Corporation, International Business Machines Corporation, Apple Computer Inc., and Gateway, Inc. In furtherance of the conspiracy, the Defendant, through certain of its officers and employees, engaged in discussions and attended meetings with representatives of certain other DRAM producers and sellers. During these discussions and meetings, agreements were reached to fix the price of DRAM to be sold to certain OEMs.

4. At certain times during the relevant period, DRAM prices decreased significantly. Nevertheless, the Defendant and its coconspirators reached agreements to limit the rate of price declines, which were achieved with varying levels of effectiveness. At other periods, the Defendant and its coconspirators reached agreements on price increases and were able to institute price increases on DRAM sales to certain OEMs.

5. During the relevant period, DRAM sold by one or more of the conspirator firms, and equipment and supplies necessary to the sale of DRAM, as well as payments for DRAM, traveled in interstate and foreign commerce. The business activities of the Defendant and its co-conspirators in connection with the sale of DRAM affected by this conspiracy were within the flow of, and substantially affected, interstate and foreign trade and commerce.

6. Acts in furtherance of this conspiracy were carried out within the Northern District of California. DRAM affected by this conspiracy was sold by one or more of the conspirators to customers in this District.

5. The Defendant understands that the maximum penalty which may be imposed against it upon conviction for a violation of Section One of the Sherman Antitrust Act is a fine in an amount equal to the greatest of:

1. $10 million (15 U.S.C. § 1);

2. twice the gross pecuniary gain the conspirators derived from the crime (18 U.S.C. § 3571(c) and (d)); or

3. twice the gross pecuniary loss caused to the victims of the crime by the conspirators (18 U.S.C. § 3571(c) and (d)).

6. In addition, the Defendant understands that:

1. pursuant to § 8B1.1 of the U.S.S.G., the Court may order it to pay restitution to the victims of the offense;

2. pursuant to 18 U.S.C. § 3013(a)(2)(B) and U.S.S.G. § 8E1.1, the Court is required to order the Defendant to pay a $400 special assessment upon conviction for the charged crime; and

3. pursuant to 18 U.S.C. § 3561(c)(1), the Court may impose a term of probation of at least one year, but not more than five years.

7. Sentencing for the offense to be charged will be conducted pursuant to the U.S.S.G. Manual in effect on the day of sentencing. Pursuant to U.S.S.G. § 1B1.8, the United States agrees that self-incriminating information that the Defendant and its cooperating officers and employees provide to the United States pursuant to this Plea Agreement will not be used to increase the volume of affected commerce attributable to the Defendant or in determining the Defendant's applicable sentencing guidelines range, except to the extent provided in U.S.S.G. § 1B1.8(b).

SENTENCING AGREEMENT

8. Pursuant to Fed. R. Crim. P. 11(c)(1)(C), the United States and the Defendant agree that the appropriate disposition of this case is, and agree to recommend jointly that the Court impose, a sentence requiring the Defendant to pay to the United States a criminal fine of $160 million, pursuant to 18 U.S.C. § 3571(d), payable in installments as set forth below ("the recommended sentence").

1. The United States and the Defendant agree to recommend, in the interest of justice pursuant to 18 U.S.C. § 3572(d)(1) and U.S.S.G. § 8C3.2(b), that the fine be paid in the following installments: within 30 days of imposition of sentence -- $27 million (plus any accrued interest); at the one-year anniversary of imposition of sentence ("anniversary") -- $27 million (plus any accrued interest); at the two-year anniversary -- $27 million (plus any accrued interest); at the three-year anniversary -- $27 million (plus any accrued interest); at the four-year anniversary -- $27 million (plus any accrued interest); and at the five-year anniversary -- $25 million (plus any accrued interest); provided, however, that the Defendant shall have the option at any time before the five-year anniversary of prepaying the remaining balance (plus any accrued interest) then owing on the fine.

2. The Defendant understands that the Court will order it to pay a $400 special assessment, pursuant to 18 U.S.C. § 3013(a)(2)(B) and U.S.S.G. § 8E1.1, in addition to any fine imposed.

3. The United States and the Defendant jointly submit that this Plea Agreement, together with the record that will be created by the United States and the Defendant at the plea and sentencing hearings, and the further disclosure described in Paragraph 10, will provide sufficient information concerning the Defendant, the crime charged in this case, and the Defendant's role in the crime to enable the meaningful exercise of sentencing authority by the Court under 18 U.S.C. § 3553. The United States and Defendant agree to request jointly that the Court accept the Defendant's guilty plea and impose sentence on an expedited schedule as early as the date of arraignment, based upon the record provided by the Defendant and the United States, under the provisions of Fed. R. Crim. P. 32(c)(1)(A)(ii), U.S.S.G. § 6A1.1, and Rule 32-1(b) of the U.S.D.C. N.D. California Criminal Local Rules. The Court's denial of the request to impose sentence on an expedited schedule will not void this Plea Agreement.

9. The United States and the Defendant agree that the applicable sentencing guidelines fine range exceeds the fine contained in the recommended sentence set out in Paragraph 8 above. Subject to the full and continuing cooperation of the Defendant, as described in Paragraph 13 of this Plea Agreement, and prior to sentencing in this case, the United States agrees that it will make a motion, pursuant to U.S.S.G. § 8C4.1, for a downward departure from the guidelines fine range and will request that the Court impose the recommended sentence set out in Paragraph 8 of this Plea Agreement because of the Defendant's substantial assistance in the government's investigation and prosecution of violations of federal criminal law in the DRAM industry.

10. Subject to the ongoing, full, and truthful cooperation of the Defendant described in Paragraph 13 of this Plea Agreement, and before sentencing in the case, the United States will fully advise the Court and the Probation Office as to: (i) the fact, manner, and extent of the Defendant's cooperation and its commitment to prospective cooperation with the United States' investigation and prosecutions; (ii) all material facts relating to the Defendant's involvement in the charged offense; and (iii) all other relevant conduct.

11. The United States and the Defendant understand that the Court retains complete discretion to accept or reject the recommended sentence provided for in Paragraph 8 of this Plea Agreement.

1. If the Court does not accept the recommended sentence, the United States and the Defendant agree that this Plea Agreement, except for Paragraph 11(b) below, shall be rendered void.

2. If the Court does not accept the recommended sentence, the Defendant will be free to withdraw its guilty plea (Fed. R. Crim. P. 11(c)(5) and (d)). If the Defendant withdraws its guilty plea, this Plea Agreement, the guilty plea, and any statement made in the course of any proceedings under Fed. R. Crim. P. 11 regarding the guilty plea or this Plea Agreement, or made in the course of plea discussions with an attorney for the government, shall not be admissible against the Defendant in any criminal or civil proceeding, except as otherwise provided in Fed. R. Evid. 410. In addition, the Defendant agrees that if it withdraws its guilty plea pursuant to this subparagraph of the Plea Agreement, the statute of limitations period for any offense referred to in Paragraph 15 of this Plea Agreement will be tolled for the period between the date of the signing of the Plea Agreement and the date the Defendant withdrew its guilty plea or for a period of sixty (60) days after the date of the signing of the Plea Agreement, whichever period is greater.

12. In light of the civil cases filed against Defendant, including In re DRAM Antitrust Litigation, No. M-02-1486PJH, MDL No. 1486, in the United States District Court, Northern District of California, and DRAM Cases, No. CJC-03-004265, in the Superior Court, San Francisco, California, which potentially provide for a recovery of a multiple of actual damages, the United States agrees that it will not seek a restitution order for the offense charged in the Information.

13. The Defendant and its wholly-owned subsidiaries (including but not limited to INFINEON TECHNOLOGIES NORTH AMERICA CORP.) (collectively, "Related Entities") will cooperate fully and truthfully with the United States in: (i) the prosecution of this case; (ii) the current federal investigation of violations of federal antitrust and related criminal laws involving the production or sale of DRAM in the United States and elsewhere; (iii) any other federal investigation resulting therefrom; and (iv) any litigation or other proceedings arising or resulting from any such investigation to which the United States is a party ("Federal Proceeding"). The ongoing, full, and truthful cooperation of the Defendant shall include, but not be limited to:

1. producing to the United States all non-privileged documents, information, and other materials (with translations into English), wherever located, in the possession, custody, or control of the Defendant or any of its Related Entities, requested by the United States in connection with any Federal Proceeding; and

2. using its best efforts to secure the ongoing, full, and truthful cooperation, as defined in Paragraph 14 of this Plea Agreement, of the current directors, officers, and employees of the Defendant or any of its Related Entities as may be requested by the United States, but excluding Heinrich Florian, Günter Hefner, Peter Schaefer and T. Rudd Corwin, including making these persons available in the United States and at other mutually agreed-upon locations, at the Defendant's expense, for interviews and the provision of testimony in grand jury, trial, and other judicial proceedings in connection with any Federal Proceeding.

14. The ongoing, full, and truthful cooperation of each person described in Paragraph 13(b) above will be subject to the procedures and protections of this paragraph, and shall include, but not be limited to:

1. producing in the United States and at other mutually agreed-upon locations all non-privileged documents (with translations into English), including claimed personal documents, and other materials, wherever located, requested by attorneys and agents of the United States in connection with any Federal Proceeding;

2. making himself or herself available for interviews in the United States and at other mutually agreed-upon locations, not at the expense of the United States, upon the request of attorneys and agents of the United States;

3. responding fully and truthfully to all inquiries of the United States in connection with any Federal Proceeding, without falsely implicating any person or intentionally withholding any information, subject to the penalties of making false statements (18 U.S.C. § 1001) and obstruction of justice (18 U.S.C. § 1503);

4. otherwise voluntarily providing the United States with any non-privileged material or information not requested in (a) - (c) of this paragraph that he or she may have that is related to any Federal Proceeding;

5. when called upon to do so by the United States in connection with any Federal Proceeding, testifying in grand jury, trial, and other judicial proceedings in the United States fully, truthfully, and under oath, subject to the penalties of perjury (18 U.S.C. § 1621), making false statements or declarations in grand jury or court proceedings (18 U.S.C. § 1623), contempt (18 U.S.C. §§ 401- 402), and obstruction of justice (18 U.S.C. § 1503); and

6. agreeing that, if the agreement not to prosecute him or her in this Plea Agreement is rendered void under Paragraph 16(c), the statute of limitations period for any Relevant Offense as defined in Paragraph 16(a) will be tolled as to him or her for the period between the date of the signing of this Plea Agreement and six (6) months after the date that the United States gave notice of its intent to void its obligations to that person under the Plea Agreement.

15. Upon acceptance of the guilty plea called for by this Plea Agreement and the imposition of the recommended sentence, and subject to the cooperation requirements of Paragraph 13 of this Plea Agreement, the United States agrees that it will not bring further criminal charges against the Defendant or any of its Related Entities for any act or offense committed before the date of this Plea Agreement that was undertaken in furtherance of an antitrust conspiracy involving the production or sale of DRAM in the United States and elsewhere, or undertaken in connection with any investigation of such a conspiracy. The nonprosecution terms of this paragraph do not apply to civil matters of any kind, to any violation of the federal tax or securities laws, or to any crime of violence.

16. The United States agrees to the following:

1. Upon the Court's acceptance of the guilty plea called for by this Plea Agreement and the imposition of the recommended sentence and subject to the exceptions noted in Paragraph 16(c), the United States will not bring criminal charges against any current or former director, officer, or employee of the Defendant or its Related Entities for any act or offense committed before the date of this Plea Agreement and while that person was acting as a director, officer, or employee of the Defendant or its Related Entities that was undertaken in furtherance of an antitrust conspiracy involving the production or sale of DRAM in the United States and elsewhere, or undertaken in connection with any investigation of such a conspiracy ("Relevant Offense"), except that the protections granted in this paragraph shall not apply to Heinrich Florian, Günter Hefner, Peter Schaefer and T. Rudd Corwin;

2. Should the United States determine that any current or former director, officer, or employee of the Defendant or its Related Entities may have information relevant to any Federal Proceeding, the United States may request that person's cooperation under the terms of this Plea Agreement by written request delivered to counsel for the individual (with a copy to the undersigned counsel for the Defendant) or, if the individual is not known by the United States to be represented, to the undersigned counsel for the Defendant;

3. If any person requested to provide cooperation under Paragraph 16(b) fails to comply with his or her obligations under Paragraph 14, then the terms of this Plea Agreement as they pertain to that person, and the agreement not to prosecute that person granted in this Plea Agreement, shall be rendered void;

4. Except as provided in Paragraph 16(e), information provided by a person described in Paragraph 16(b) to the United States under the terms of this Plea Agreement pertaining to any Relevant Offense, or any information directly or indirectly derived from that information, may not be used against that person in a criminal case, except in a prosecution for perjury (18 U.S.C. § 1621), making a false statement or declaration (18 U.S.C. §§ 1001, 1623), or obstruction of justice (18 U.S.C. § 1503);

5. If any person who provides information to the United States under this Plea Agreement fails to comply fully with his or her obligations under Paragraph 14 of this Plea Agreement, the agreement in Paragraph 16(d) not to use that information or any information directly or indirectly derived from it against that person in a criminal case shall be rendered void;

6. The nonprosecution terms of this paragraph do not apply to civil matters of any kind, to any violation of the federal tax or securities laws, or to any crime of violence; and

7. Documents provided under Paragraphs 13(a) and 14(a) shall be deemed responsive to outstanding grand jury subpoenas issued to the Defendant and/or any of its Related Entities.

17. The United States agrees that when any person travels to the United States for interviews, grand jury appearances, or court appearances pursuant to this Plea Agreement, or for meetings with counsel in preparation therefor, the United States will take no action, based upon any Relevant Offense, to subject such person to arrest, detention, or service of process, or to prevent such person from entering or departing the United States. This paragraph does not apply to an individual's commission of perjury (18 U.S.C. § 1621), making false statements (18 U.S.C. § 1001), making false statements or declarations in grand jury or court proceedings (18 U.S.C. § 1623), obstruction of justice (18 U.S.C. § 1503), or contempt (18 U.S.C. §§ 401- 402) in connection with any testimony or information provided or requested in any Federal Proceeding.

18. The Defendant understands that it may be subject to administrative action by federal or state agencies other than the United States Department of Justice, Antitrust Division, based upon the conviction resulting from this Plea Agreement, and that this Plea Agreement in no way controls whatever action, if any, other agencies may take. However, the United States agrees that, if requested, it will advise the appropriate officials of any governmental agency considering such administrative action of the fact, manner, and extent of the cooperation of the Defendant and its Related Entities, including the fact that the United States, pursuant to U.S.S.G. § 8C4.1, moved for a downward departure from the Guidelines fine range, as matters for that agency to consider before determining what administrative action, if any, to take.

19. The Defendant has been represented by counsel and is fully satisfied that its attorneys have provided competent legal representation. The Defendant has thoroughly reviewed this Plea Agreement and acknowledges that counsel has advised it of the nature of the charge, any possible defenses to the charge, and the nature and range of possible sentences.

VOLUNTARY PLEA

20. The Defendant's decision to enter into this Plea Agreement and to tender a plea of guilty is freely and voluntarily made and is not the result of force, threats, assurances, promises, or representations other than the representations contained in this Plea Agreement. The United States has made no promises or representations to the Defendant as to whether the Court will accept or reject the recommendations contained within this Plea Agreement.

21. The Defendant agrees that, should the United States determine in good faith, during the period that any Federal Proceeding is pending, that the Defendant or any of its Related Entities has failed to provide full and truthful cooperation, as described in Paragraph 13 of this Plea Agreement, or has otherwise violated any provision of this Plea Agreement, the United States will notify counsel for the Defendant in writing by personal or overnight delivery or facsimile transmission and may also notify counsel by telephone of its intention to void any of its obligations under this Plea Agreement (except its obligations under this paragraph), and the Defendant and its Related Entities shall be subject to prosecution for any federal crime of which the United States has knowledge including, but not limited to, the substantive offenses relating to the investigation resulting in this Plea Agreement. The Defendant may seek Court review of any determination made by the United States under this Paragraph to void any of its obligations under the Plea Agreement. The Defendant and its Related Entities agree that, in the event that the United States is released from its obligations under this Plea Agreement and brings criminal charges against the Defendant or its Related Entities for any offense referred to in Paragraph 15 of this Plea Agreement, the statute of limitations period for such offense will be tolled for the period between the date of the signing of this Plea Agreement and six months after the date the United States gave notice of its intent to void its obligations under this Plea Agreement.

22. The Defendant understands and agrees that in any further prosecution of it or its Related Entities resulting from the release of the United States from its obligations under this Plea Agreement, because of the Defendant's or its Related Entities' violation of the Plea Agreement, any documents, statements, information, testimony, or evidence provided by it, its Related Entities, or its current directors, officers, or employees of it or its Related Entities, to attorneys or agents of the United States, federal grand juries, or courts, and any leads derived therefrom, may be used against it or its Related Entities in any such further prosecution. In addition, the Defendant unconditionally waives its right to challenge the use of such evidence in any such further prosecution, notwithstanding the protections of Fed. R. Evid. 410.

23. This Plea Agreement constitutes the entire agreement between the United States and the Defendant concerning the disposition of the criminal charge in this case. This Plea Agreement cannot be modified except in writing, signed by the United States and the Defendant.

24. The undersigned is authorized to enter this Plea Agreement on behalf of the Defendant as evidenced by the Resolution of the Board of Directors of the Defendant attached to, and incorporated by reference in, this Plea Agreement.

25. The undersigned attorneys for the United States have been authorized by the Attorney General of the United States to enter this Plea Agreement on behalf of the United States.

26. A facsimile signature shall be deemed an original signature for the purpose of executing this Plea Agreement. Multiple signature pages are authorized for the purpose of executing this Plea Agreement.

DATED: September _14_, 2004

Respectfully submitted,

BY:_______________/s/________________ Infineon Technologies AG St. Martin-Strasse 53 MCH B/KU/164616 81669 Munich Germany BY:_______________/s/________________ James H. Mutchnik Kirkland & Ellis LLP 200 E. Randolph Drive Chicago, Illinois 60601 Tel: (312) 861-2350 Fax: (312) 861-2200 Tefft W. Smith Kirkland & Ellis LLP 655 Fifteenth Street, NW Washington, DC 20005 Tel: (202) 879-5212 Fax: (202) 879-5200 BY:_______________/s/________________ Gregory Wallance Michael Blechman Kaye Scholer LLP 425 Park Avenue New York, NY 10022 Tel: (212) 836-8878 Fax: (212) 836-8689

BY:_______________/s/________________ Niall E. Lynch, CA No. 157959 Richard B. Cohen, CA No. 79601 Eugene S. Litvinoff, CA No. 214318 Nathanael M. Cousins, CA No. 177944 Trial Attorneys U.S. Department of Justice Antitrust Division 450 Golden Gate Avenue Box 36046, Room 10-0101 San Francisco, CA 94102 Tel: (415) 436-6660 Fax: (415) 436-6687

Minutes of the Resolution of the Management Board of Infineon Technologies AG with respect to the Execution of the Plea Agreement as in Annex 1

On September 06, 2004, after discussion, the management board, composed of Mssrs Dr Wolfgang Ziebart (CEO), Peter Bauer, Peter J. Fischl and Dr Andreas von Zitzewitz, unanimously took the following resolutions:

1. The execution, delivery and performance of the so-called Plea Agreement between Infineon Technologies AG (the "Corporation") and the United States Department of Justice, in substantially the form of the presented draft, as appended hereto as Annex 1, is hereby approved.

2. Mr Robert LeFort President of Infineon Technologies North America Corp., and Mr Greg Bibbes, General Counsel of Infineon Technologies North America Corp., are hereby authorized and directed to execute and deliver, each individually, in the name and on behalf of the Corporation, the Plea Agreement.

3. Mr Robert LeFort and Mr Greg Bibbes may represent - each individually - the Corporation at any hearing in order to waive any and all rights of the Corporation referred to under section 2 of the Plea Agreement and to plead guilty in accordance with the provisions of the Plea Agreement in the name and on behalf of the Corporation.

4. Mr Robert LeFort and Mr Greg Bibbes are hereby authorized and empowered to take - each individually - any and all actions required or appropriate in order to carry out the intent and purpose of the preceding resolutions.

The above resolutions are hereby written down in accordance with the rules of procedure of the management board.

Munich, September 6, 2004

_______________/s/________________ Dr Wolfgang Ziebart