SAN JOSE, Calif.--(BUSINESS WIRE)--Oct. 6, 2004--Tessera Technologies, Inc. (Nasdaq:TSRA) will announce its third quarter 2004 earnings results after the market close on Wednesday, October 20, 2004. Tessera will host an earnings conference call at 1:30 P.M. Pacific (4:30 P.M. Eastern) featuring remarks by Bruce McWilliams, chairman, president, and chief executive officer, and Doug Norby, senior vice president of finance and chief financial officer, followed by a live Q&A session.

To access the call in the U.S., please dial 877-866-5534, and for international callers dial 706-679-0753 approximately 10 minutes prior to the start of the conference call. The conference call will also be broadcast live over the Internet and available for replay for 90 days at www.tessera.com. In addition, a replay of the call will be available via telephone for 2 business days, beginning two hours after the call. To listen to the telephone replay in the U.S., please dial 800-642-1687 and for international callers, dial 706-645-9291. Enter access code 1338797.

About Tessera

Tessera develops semiconductor packaging technology that meets the demand for miniaturization and increased performance of electronic products. Tessera licenses its technology to its customers, enabling them to produce semiconductors that are smaller and faster, and incorporate more features. These semiconductors are utilized in a broad range of communications, computing and consumer electronic products.

CONTACT: Tessera Technologies, Inc.
Doug Norby, 408-894-0700
(Senior Vice President, Chief Financial Officer)
Mike Forman, 408-894-0700
(Vice President, Finance and Administration)
or
Lippert / Heilshorn & Associates
Moriah Shilton, 415-433-3777 (Investor Relations)
Moriah@lhai-sf.com
Kirsten Chapman, 415-433-3777 (Investor Relations)

SOURCE: Tessera Technologies, Inc.