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Intersil Files Patent Infringement Counterclaims Against Agere Systems

IRVINE, CA, November 6, 2002 – Intersil Corporation (NASDAQ: ISIL), a world leader in the design and manufacture of high performance analog and wireless networking solutions, today filed patent infringement counterclaims against Agere Systems (NYSE: AGR.A, AGR.B). This action was filed with the United States District Court in Delaware, the court where Agere Systems filed a patent infringement lawsuit against Intersil on October 17, 2002.

Intersil’s counterclaims in the lawsuit charge Agere Systems with infringing Intersil patents pertaining to Wireless Local Area Networks (WLAN) and semiconductor technologies. Intersil believes Agere’s wireless LAN products infringe Intersil’s WLAN patents and that Agere’s semiconductor products and processes, including its BiCMOS (bipolar complementary metal-oxide semiconductor) and CMOS (complementary metal-oxide semiconductor) products and manufacturing processes, infringe Intersil’s semiconductor technology patents. Intersil believes that Agere uses Intersil’s semiconductor technology patents to manufacture and sell integrated circuits for a broad range of markets, including WLAN, disk drive and telecommunications products. Intersil is seeking to collect damages for past infringement and to enjoin Agere from continuing to use Intersil’s patented technologies.

“We are committed to protecting and defending Intersil’s patent rights in WLAN and semiconductor technologies to the fullest extent of the law,” said Rich Beyer, president and CEO of Intersil Corporation.

Intersil + Elantec Means More for Our Customers
Intersil Corporation is a global semiconductor leader in the design and manufacture of high performance analog and wireless networking solutions. The acquisition of Elantec Semiconductor, Inc., expanded Intersil’s product portfolios to address four fast growing markets – flat panel displays, optical storage (CD and DVD recordable), power management and wireless networking. Intersil brings added customer value in providing complete silicon, software and reference design solutions to new products that enhance the computing experience for people wherever they live, work or travel. For more information about Intersil or to find out how to become a member of our winning team, visit the company's web site and career page at: www.intersil.com