Exhibit 99.1

Company Contact:

Bernard J. Cassidy

Executive Vice President and General Counsel

408-321-6779

TWO TESSERA TECHNOLOGIES BOARD MEMBERS SUBMIT RESIGNATIONS

San Jose, Calif.,- Feb. 25, 2013 – Tessera Technologies, Inc. (NASDAQ: TSRA) (the “Company” or “we”) announced today that two members of its board of directors, John Goodrich and Kevin Rivette, submitted a letter of resignation.

On February 22, 2013, Messrs. Goodrich and Rivette sent a letter to the Company’s board of directors and secretary stating that they would each resign, effective on March 1, 2013, unless Robert Boehlke has resigned by then from the board of directors. Mr. Boehlke has informed the Company in writing that he does not intend to resign. Accordingly, we expect the resignations of Messrs. Goodrich and Rivette will take effect on March 1, 2013.

Mr. Goodrich, 71, has been a member of the board of directors since August 2001. Mr. Goodrich is a member of the Audit Committee and the chairman of the Nominating Committee. Mr. Rivette, 56, has been a member of the board of directors since March 2011. Mr. Rivette, a non-independent director, is not a member of any committee of the board of directors. The Company thanks Messrs. Goodrich and Rivette for their services to the Company.

The Company is committed to ensuring that all members of the Board possess fundamental qualities of intelligence, honesty, good judgment, high ethics and standards of integrity, fairness and responsibility.

Safe Harbor Statement

This document contains forward-looking statements, which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties that could cause actual results to differ significantly from those projected, particularly with respect to the resignations of Messrs. Goodrich ad Rivette. Material factors that may cause results to differ from the statements made include the plans or operations relating to the Company’s businesses; market or industry

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conditions; changes in patent laws, regulation or enforcement, or other factors that might affect the Company’s ability to protect or realize the value of its intellectual property; the expiration of license agreements and the cessation of related royalty income; the failure, inability or refusal of licensees to pay royalties; initiation, delays, setbacks or losses relating to the Company’s intellectual property or intellectual property litigations, or invalidation or limitation of key patents; the timing and results, which are not predictable and may vary in any individual proceeding, of any ICC ruling or award, including in the Amkor arbitration; fluctuations in operating results due to the timing of new license agreements and royalties, or due to legal costs; the risk of a decline in demand for semiconductor and camera module products; failure by the industry to use technologies covered by the Company’s patents; the expiration of the Company’s patents; the Company’s ability to successfully complete and integrate acquisitions of businesses, including the integration by DigitalOptics Corporation (“DOC”) of its recently acquired camera module manufacturing facility in Zhuhai, China; the risk of loss of, or decreases in production orders from, customers of acquired businesses; financial and regulatory risks associated with the international nature of the Company’s businesses; failure of the Company’s products to achieve technological feasibility or profitability; failure to successfully commercialize the Company’s products; changes in demand for the products of the Company’s customers; limited opportunities to license technologies and sell products due to high concentration in the markets for semiconductors and related products and camera modules; the impact of competing technologies on the demand for the Company’s technologies and products; failure by DOC to become a vertically integrated camera module supplier; and the reliance on a limited number of suppliers for the components used in the manufacture of DOC products. You are cautioned not to place undue reliance on the forward-looking statements, which speak only as of the date of this release. The Company’s filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended Dec. 31, 2011, and its Quarterly Report on Form 10-Q for the quarter ended Sept. 30, 2012, include more information about factors that could affect the Company’s financial results. The Company assumes no obligation to update information contained in this press release. Although this release may remain available on the Company’s website or elsewhere, its continued availability does not indicate that the Company is reaffirming or confirming any of the information contained herein.

About Tessera Technologies, Inc.

Tessera Technologies, Inc. is a holding company with operating subsidiaries in two segments: Intellectual Property and DigitalOptics. Our Intellectual Property segment, managed by Tessera Intellectual Property Corp., generates revenue from manufacturers and other implementers that use our technology. Our DigitalOptics business delivers innovation in imaging systems for smartphones. For more information call 1.408.321.6000 or visit www.tessera.com.

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Tessera, the Tessera logo, DOC, the DOC logo, and Invensas Corporation are trademarks or registered trademarks of affiliated companies of Tessera Technologies, Inc. in the United States and other countries. All other company, brand and product names may be trademarks or registered trademarks of their respective companies.

Additional Information and Where to Find It

Tessera Technologies, Inc. (the “Company”), its directors and certain executive officers and employees may become participants in the solicitation of proxies from stockholders in connection with the Company’s 2013 Annual Meeting of Stockholders (the “Annual Meeting”). The Company plans to file a proxy statement with the Securities and Exchange Commission (the “SEC”) in connection with the solicitation of proxies for the Annual Meeting (the “2013 Proxy Statement”).

Robert J. Boehlke, Richard S. Hill, David C. Nagel, Timothy J. Stultz, Anthony J. Tether, and Robert A. Young, all of whom are members of the Company’s Board of Directors, and C. Richard Neely, Jr., Executive Vice President and Chief Financial Officer, Bernard J. Cassidy, Executive Vice President, General Counsel and Secretary and Moriah C. Shilton, Senior Director, Investor Relations, may become participants in the Company’s solicitation. Information regarding the Company’s directors’ and executive officers’ respective interests in the Company by security holdings or otherwise is set forth in the Company’s proxy statement relating to the 2012 annual meeting of stockholders. No other participants own in excess of 1% of the Company’s common stock. Additional information regarding the interests of such participants will be included in the 2013 Proxy Statement and other relevant documents to be filed with the SEC in connection with the Annual Meeting.

Promptly after filing its definitive 2013 Proxy Statement with the SEC, the Company will mail the definitive 2013 Proxy Statement and a proxy card to each stockholder entitled to vote at the Annual Meeting. STOCKHOLDERS ARE URGED TO READ THE 2013 PROXY STATEMENT (INCLUDING ANY AMENDMENTS OR SUPPLEMENTS THERETO) AND ANY OTHER RELEVANT DOCUMENTS THAT THE COMPANY WILL FILE WITH THE SEC WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Stockholders may obtain, free of charge, copies of the definitive 2013 Proxy Statement and any other documents filed by the Company with the SEC in connection with the Annual Meeting at the SEC’s website (http://www.sec.gov), at the Company’s website (http://ir.tessera.com/sec.cfm) or by writing to the Secretary, Tessera Technologies, Inc., 3025 Orchard Parkway, San Jose, California 95134.

TSRA-G

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