The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2022
Filed:
Sep. 25, 2019
Shibaura Mechatronics Corporation, Yokohama, JP;
Hidehito Azumano, Yokohama, JP;
SHIBAURA MECHATRONICS CORPORATION, Yokohama, JP;
Abstract
According to one embodiment, a plasma processing apparatus includes a chamber being possible to maintain an atmosphere more depressurized than atmospheric pressure, a plasma generator generating a plasma inside the chamber, a gas supplier supplying a gas into the chamber, a placement part positioned below a plasma generation region and placing a processed product thereon, a depressurization part depressurizing the chamber, and a power supply electrically connected to an electrode provided on the placement part via a bus bar. The bus bar is formed of an alloy of copper and gold. Gold is more included than copper on a surface side of the bus bar. The bus bar includes a first layer formed of copper and a second layer covering the first layer and formed of an alloy of copper and gold. Gold is more included than copper on a surface side of the second layer.