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:
Jun. 17, 2025
Filed:
Sep. 17, 2021
Kokusai Electric Corporation, Tokyo, JP;
Hideto Tateno, Toyama, JP;
Satoshi Takano, Toyama, JP;
Kokusai Electric Corporation, Tokyo, JP;
Abstract
According to one aspect of the present disclosure, there is provided a technique that includes: a substrate retainer; a reaction tube; a heater configured to heat an inside of the reaction tube; a gas supplier configured to supply a process gas to substrates accommodated in the reaction tube; an exhauster configured to exhaust the process gas from the inside of the reaction tube; a temperature detector configured to measure an inner temperature of the reaction tube; a reflectance detector configured to measure a reflectance of a film formed by supplying the process gas through the gas supplier; and a controller configured to be capable of performing a feedback control of film-forming conditions on the substrates accommodated in the reaction tube by using temperature information measured by the temperature detector and reflectance information measured by the reflectance detector.