Patent 11037763 was granted and assigned to Tokyo Electron on June, 2021 by the United States Patent and Trademark Office.
There is provision of a member used in a plasma processing apparatus configured to generate plasma from a gas in a processing vessel and to process a substrate disposed on a mounting base in the processing vessel using the plasma. The member includes a surface exposed to the plasma in the processing vessel in a state installed in the processing vessel, and a coating layer including cobalt which covers a part of the surface.