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SST And Grace Semiconductor Expand Availability of Embedded Superflash Technology with New Licensing Agreement


June 6, 2006

Grace to Offer SST’s SuperFlash® Technology in various logic processes

SUNNYVALE, California, — SST (Silicon Storage Technology, Inc., NASDAQ: SSTI), a leader in flash memory technology, and Grace Semiconductor Manufacturing Corporation announced today an extension of their technology licensing agreement. Grace can now offer its customers SST’s self-aligned SuperFlash cell for embedded applications in 0.15 um, 0.18 um, and 0.25 um logic processes, allowing Grace to expand its customer base and applications it can serve. Grace is one of SST’s major wafer foundry partners and has been in volume production with SST’s SuperFlash memory products since the fourth quarter of 2003.

SST attributes the success of SuperFlash to its reliability, low power and compatibility with CMOS logic process. In addition, SST has been able to form strong relationships with semiconductor manufacturers and global foundry partners, enabling SuperFlash technology to be widely accessible to the industry.

“Because of our licensing agreement with SST, we have already been able to provide our customers qualified embedded SuperFlash cells. Some customers have already taped-out and are expected to be in production soon,” said Yeshun Dong, President and CEO of Grace. “This latest agreement assures our customers that they have access to the leading edge embedded memory technology.”

“This agreement with Grace is further proof that SuperFlash is the technology-of-choice for embedded applications,” said Bing Yeh, President and CEO of SST. “Grace is an up and coming major foundry player in China, and we consider our continued partnership a significant endorsement of SST’s embedded SuperFlash technology in these logic nodes.”

About Grace Semiconductor Manufacturing Corp.
Grace Semiconductor Manufacturing Corporation (Grace) is a pure IC foundry company that specializes in integrated circuit (IC) fabrication. Grace’s mission is to become a leading foundry in China by supplying high quality and advanced process technology to domestic and global customers.

Grace is located in Zhangjiang Hi-Tech Park in Pudong, Shanghai, with a total land area of 240,000 square meters. Two fabs, based on 12-inch wafer specifications, have been constructed. Currently, Fab 1 is in full production with a monthly capacity of 27,000 8-inch wafers. More information about Grace is available at

About Silicon Storage Technology, Inc.
Headquartered in Sunnyvale, California, SST designs, manufactures and markets a diversified range of memory and non-memory products for high volume applications in the digital consumer, networking, wireless communications and Internet computing markets. Leveraging its proprietary, patented SuperFlash technology, SST is a leading provider of nonvolatile memory solutions with product families that include various densities of high functionality flash memory components and flash mass storage products. The Company also offers its SuperFlash technology for embedded applications through its broad network of world-class manufacturing partners and technology licensees, including TSMC, which offers it under its trademark Emb-FLASH. SST’s non-memory products include NAND controllers, smart card ICs, flash microcontrollers and radio frequency ICs and modules. Further information on SST can be found on the company’s Web site at

Forward-Looking Statements
Except for the historical information contained herein, this news release contains forward-looking statements regarding flash memory and non-memory market conditions, SST’s future financial performance, the performance of new products and SST’s ability to bring new products to market that involve risks and uncertainties. These risks may include timely development, acceptance and pricing of new products, the terms and conditions associated with licensees’ royalty payments, the impact of competitive products and pricing, and general economic conditions as they affect SST’s customers, as well as other risks detailed from time to time in the SST’s SEC reports, including the Annual Report on Form 10-K for the year ended December 31, 2005 and on Form 10-Q for the quarter ended March 31, 2006.

For more information about SST and the company’s comprehensive list of product offerings, please call 1-888/SST-CHIP. Information can also be requested via email to or through SST’s Web site at SST’s head office is located at 1171 Sonora Court, Sunnyvale, Calif.; telephone: 408/735-9110; fax: 408/735-9036.

The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc. Emb-FLASH is a trademark of TSMC. All other trademarks or registered trademarks are the property of their respective holders.

Sohrab Kianian
Vice President, Technology Licensing & Business Development
Silicon Storage Technology, Inc.
licensing (at)

Steve Gabriel
Porter Novelli
408/369-1500 x627

Angela Chen
Grace Semiconductor Manufacturing Corp.


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