Manufacturing UniRAM Technology Inc. continued its winning ways against Taiwan Semiconductor Manufacturing Co., racking up two more victories in April in its trade secret litigation over dynamic random access memory chips. Chief Judge Vaughn Walker of the U.S. district court in San Francisco awarded UniRAM prejudgment interest of more than $5 million on top of a judgment of $30.5 million. In September 2007 a jury had found that TSMC, the world’s largest integrated circuit fabricator, gave UniRAM’s innovative chip designs to Monolithic System Technology, Inc., a company in which TSMC has an ownership stake. (UniRAM settled related patent infringement claims against MoSys in 2006.)

Judge Walker also ruled that TSMC’s inequitable conduct claims were meritless, saying that “circumstantial evidence suggests that TSMC brought the [inequitable conduct] counterclaims not because it believed [inventor Jeng-Jye] Shau lied to the patent office but because it wanted to intimidate UniRAM.”

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