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:
Aug. 30, 2022
Filed:
Apr. 14, 2021
Tokyo Electron Limited, Tokyo, JP;
Yusuke Hashimoto, Kumamoto, JP;
Jiro Higashijima, Kumamoto, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A substrate processing apparatus includes at least one nozzle unit configured to eject a processing liquid to a substrate. The at least one nozzle unit includes a conductive part for voltage application configured to be brought into contact with the processing liquid, and a voltage detection part or a current detection part configured to be brought into contact with the processing liquid. A non-conductive part is interposed between the conductive part for voltage application and the voltage detection part or between the conductive part for voltage application and the current detection part. A voltage application part is connected to the conductive part for voltage application, and a voltage detector is installed in the voltage detection part or a current detector is installed in the current detection part.