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:
Apr. 14, 2026
Filed:
Mar. 14, 2022
Tokyo Electron Limited, Tokyo, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
In a specification step, the pressure within a processing container at the time of plasma cleaning is specified from the amount of damage to a protective film that is provided on an inner surface of the processing container and the cleaning rate at which accumulated matter that accumulates in the processing container is removed, said amount of damage and said cleaning rate being treated as plasma cleaning parameters. In a cleaning step, the pressure within the processing container is adjusted to the pressure that was specified in the specification step, while a cleaning gas is supplied into the processing container, and microwaves are used to generate plasma within the processing container and plasma cleaning is performed within the processing container.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile