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:
Nov. 15, 2022
Filed:
Jul. 20, 2020
Kokusai Electric Corporation, Tokyo, JP;
Tetsuaki Inada, Toyama, JP;
Hideto Tateno, Toyama, JP;
KOKUSAI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A technique capable of exhausting a process gas in a wide pressure range includes a substrate processing apparatus including: a process chamber; a gas supply system configured to supply a process gas containing a compound capable of reacting with a metal; and a gas exhaust system configured to exhaust an inner atmosphere of the process chamber, wherein the gas exhaust system includes: a common exhaust piping; a first exhaust piping made of a resin incapable of reacting with the compound and whose one end is connected to the common exhaust piping via a first valve and the other end is connected to a first exhauster; and a second exhaust piping made of the metal and whose one end is connected to the common exhaust piping via a second valve and the other end is connected to a second exhauster.