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.

Date of Patent:
Jul. 09, 2024

Filed:

Mar. 09, 2021
Applicant:

Tokyo Electron Limited, Tokyo, JP;

Inventors:

Joji Takayoshi, Miyagi, JP;

Ryuta Akimoto, Miyagi, JP;

Takehito Watanabe, Miyagi, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01); H01J 37/244 (2006.01); H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32935 (2013.01); H01J 37/32605 (2013.01); H01J 37/32807 (2013.01); H01J 37/32917 (2013.01); H01J 37/244 (2013.01); H01J 37/32091 (2013.01); H01J 37/32642 (2013.01); H01L 21/67069 (2013.01);
Abstract

A plasma processing apparatus including a processing container and a conductive member, includes a plasma generator configured to generate plasma in the processing container, a power application part configured to apply a DC power to the conductive member in a state in which plasma is generated in the processing container by the plasma generator, a measurement part configured to measure a physical quantity related to the DC power applied by the power application part, and a calculator configured to obtain a wear amount of the conductive member using the measured physical quantity related to the DC power in a correlation function between the wear amount of the conductive member and the physical quantity related to the DC power.


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