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:
Aug. 31, 2021

Filed:

Oct. 24, 2017
Applicant:

Screen Holdings Co., Ltd., Kyoto, JP;

Inventors:

Chisayo Nakayama, Kyoto, JP;

Yuji Tanaka, Kyoto, JP;

Masahiko Harumoto, Kyoto, JP;

Masaya Asai, Kyoto, JP;

Yasuhiro Fukumoto, Kyoto, JP;

Tomohiro Matsuo, Kyoto, JP;

Takeharu Ishii, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/324 (2006.01); H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
H01L 21/324 (2013.01); H01L 21/67103 (2013.01);
Abstract

An oxygen concentration is lowered in accordance with a set lowering process, and thereafter a heat treatment is performed. Accordingly, the heat treatment is performed to a substrate W while the oxygen concentration in a heat treating space HS is lowered. Consequently, a treatment atmosphere within the heat treating space is able to be made suitable for a heat treatment process, leading to appropriate film deposition. In addition, the oxygen concentration is lowered in accordance with a concentration level in recipes. This avoids an excessively lowered oxygen concentration, leading to prevention of reduced throughput.


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