LSI Corp. Hits Semiconductor Makers With Patent Suit

Law360 (April 24, 2008, 12:00 AM EDT) -- LSI Corp. fired off a suit last week against United Microelectronics Corp. and a slew of other semiconductor manufacturers, alleging infringement of its patent related to semiconductor devices.

The chip designer and a subsidiary, Agere Systems Inc., lodged the complaint in the U.S. District Court for the Eastern District of Texas accusing many of the industry's leading semiconductor makers of infringing several of its patent's claims.

The U.S. Patent and Trademark Office issued U.S. Patent Number 5,227,335 B1, titled “Tungsten metallization,” in July 1993. The patent...
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