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Dupont Loss Against Cabot to Get Second Look by Trade Agency

Sept. 22, 2021, 9:10 PM

The International Trade Commission said it will review a judge’s findings that DuPont and its subsidiary Rohm & Haas are infringing a patent owned by Cabot Microelectronics for chemical mechanical planarization slurries used in chip-making.

  • The commission said it will review the judge’s findings on importation, infringement, and domestic industry, according to notice posted on the agency’s website
  • Cabot says its patent covers “cutting-edge slurry products” that reduce defects and speed polishing times of the layers deposited on silicon wafers and are part of the company’s iDiel family of slurries
  • Dupont and Rohm & Haas, which makes the Optiplane products ...

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