Cabot Wins Bid To Keep Expert Out Of DA Nano Trial

Law360, New York (July 1, 2010, 4:27 PM EDT) -- Cabot Microelectronics Corp. has successfully blocked expert testimony and certain evidence from being presented by plaintiff DuPont Air Products NanoMaterials LLC in an ongoing trial over patents for tungsten chemical mechanical planarization.

Judge Roslyn O. Silver of the U.S. District Court for the District of Arizona on Tuesday granted Cabot’s motion to exclude DA Nano’s expert, Dr. Chris Yu, and opinion of counsel documents that were produced just two days before trial.

Because DA Nano did not produce any documents detailing opinion of counsel during discovery,...
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