IDT Receives Favorable Ruling in Patent Action versus LSI Logic

• Press Release
• Source: Integrated Device Technology, Inc.
• On 12:30 pm EDT, Thursday September 24, 2009

SAN JOSE, Calif.--(BUSINESS WIRE)--IDT^® (Integrated Device Technology, Inc.)(NASDAQ:IDTI - News), a leading provider of essential mixed signal semiconductor solutions that enrich the digital media experience today announced a favorable ruling issued yesterday by the International Trade Commission (ITC) in a patent action brought by LSI Corporation against several semiconductor companies, including IDT. In the ruling, the ITC found that the patent claims asserted by LSI were invalid.

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Symbol	Price	Change
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LSI had alleged that IDT and the other defendants in the action violated section 337 of the Tariff Act which prohibits the importation and sale of infringing products. Based on the finding of invalidity, the Court held that no violation of section 337 has occurred with respect to the asserted claims.

The full ITC Commission has until November 21 to determine whether to review the initial determination of the judge or allow it to become final.

About IDT

With the goal of continuously improving the digital media experience, IDT integrates its fundamental semiconductor heritage with essential innovation, developing and delivering low-power, mixed signal solutions that solve customer problems. Headquartered in San Jose, Calif., IDT has design, manufacturing and sales facilities throughout the world. IDT stock is traded on the NASDAQ Global Select Stock Market^® under the symbol “IDTI.” Additional information about IDT is accessible at www.IDT.com.

IDT and the IDT logo are trademarks or registered trademarks of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners.

IDT Investor Relations
Mike Knapp, 408-284-6515
mike.knapp@idt.com
IDT Worldwide Marketing
Carolyn Robinson, 408-284-8200
carolyn.robinson@idt.com