David Nagel Joins Tessera Technologies' Board of Directors

Nagel, 60, was most recently president and chief executive officerof PalmSource, Inc., a leading provider of operating system softwareplatforms for smart mobile devices. Prior to PalmSource, Nagel was thechief technology officer at AT&T and president of AT&T Labs. Beforejoining AT&T, Nagel was senior vice president at Apple Computer, wherehe headed the advanced technology group and then led the worldwideresearch and development group, responsible for all Macintosh hardwareand software products.

Bruce McWilliams, Tessera's chairman and chief executive officer,stated, "Dave's extensive knowledge and distinguished career, whichincludes leadership roles at PalmSource, AT&T and Apple, are a greatasset for Tessera. We are fortunate to have Dave join our board and welook forward to his unique insights and perspective as we continue togrow in our target markets."

Prior to Apple, Nagel had a long career at NASA's Ames ResearchCenter where he was head of human factors research. He is theco-author and editor (with Earl Wiener) of Aviation Human Factors,published by Academic Press. Nagel also authored or co-authored anumber of publications in the general area of applied psychology andthe interaction of humans with complex systems. Nagel has served on anumber of national and international advisory committees, among themNATO's Advisory Group for Aerospace Research and Development and morerecently the first President's Information Technology AdvisoryCommittee (PITAC), on which he served five years for President WilliamClinton.

Nagel joined Tessera's board as of the company's last AnnualMeeting of Stockholders, effective May 19, 2005. Nagel is also amember of the board of directors of Liberate Technologies, Inc. andNuance, Inc. and serves on the Boards of Trustees of the UCLAFoundation, the International Computer Science Institute (ICSI) atUniversity of California, Berkeley and the SETI Institute. He also wasnamed a member of the UCLA Sciences Board of Visitors, an advisorygroup for the physical and life sciences. He holds B.S. and M.S.degrees in engineering and a Ph.D. in perception and mathematicalpsychology, all from UCLA.

About Tessera Technologies, Inc.

Tessera Technologies, through its wholly-owned subsidiary Tessera,Inc., is a leading provider of miniaturization technologies for theelectronics industry. Tessera enables new levels of miniaturizationand performance by applying its unique expertise in the electrical,thermal and mechanical properties of materials and interconnect. As aresult, Tessera's technologies are widely adopted in high-growthmarkets including consumer, computing, communications, medical anddefense. Tessera's customers include the world's top semiconductorcompanies such as Intel, Samsung, Renesas, Toshiba and TexasInstruments. The company's stock is traded on the Nasdaq NationalMarket under the symbol TSRA. Tessera is headquartered in San Jose,California. www.tessera.com.

Note: Tessera and the Tessera logo are registered trademarks. Allother company, brand and product names may be trademarks or registeredtrademarks of their respective companies.

Safe Harbor Statement

This press release contains forward-looking statements, which aremade pursuant to the safe harbor provisions of the Private SecuritiesLitigation Reform Act of 1995. Forward-looking statements involverisks and uncertainties that could cause actual results to differsignificantly from those projected. Factors that might cause orcontribute to such differences include, but are not limited to,fluctuations in Tessera's operating results due to the timing of newlicense agreements and royalties, Tessera's ability to protect itsintellectual property and the risk of a decline in demand forsemiconductor products. You are cautioned not to place undue relianceon the forward-looking statements, which speak only as of the date ofthis release. Tessera's filings with the Securities and ExchangeCommission, including its Annual Report on Form 10-K for the yearended December 31, 2004, and its Quarterly Report on Form 10-Q filedfor the quarter ended June 30, 2005, include more information aboutfactors that could affect the company's financial results.