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:
Feb. 14, 2023
Filed:
Feb. 10, 2021
Tokyo Electron Limited, Tokyo, JP;
Masato Shinada, Tokyo, JP;
Einstein Noel Abarra, Tokyo, JP;
TOKYO ELECTRON LIMITED, Tokyo, JP;
Abstract
A cathode unit for performing a sputtering film formation includes: a target that emits sputtering particles; a target cooler that includes a cooling plate to which the target is bonded; and a power supply that supplies a power to the target. The target has a high-temperature region that has a higher temperature than other regions of the target during a film formation. The cooling plate includes a coolant flow space through which a coolant flows, and a first wall and a second wall that define the coolant flow space in a thickness direction. In the coolant flow space, a flow path of the coolant is formed by a first partition plate and a second partition plate. The first partition plate does not exist at a portion of the coolant flow space that corresponds to the high-temperature region.