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:
Jan. 09, 2024
Filed:
Sep. 27, 2021
Tokyo Electron Limited, Tokyo, JP;
Kenta Shibasaki, Koshi, JP;
Hiroichi Inada, Koshi, JP;
Satoshi Shimmura, Koshi, JP;
Koji Takayanagi, Koshi, JP;
Kenji Yada, Koshi, JP;
Shinichi Seki, Koshi, JP;
Akihiro Teramoto, Koshi, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A solution treatment apparatus applies a coating solution onto a substrate. The apparatus includes a holder holding and rotating the substrate; a coating solution supplier supplying the coating solution to the substrate on the holder; and an inner cup surrounding the holder from a lateral side and having a peripheral edge side upper surface inclining down outward in a radial direction from an apex part located below a peripheral edge side of the substrate on the holder. The inner cup has discharge ports formed along a circumferential direction at the apex part; and the discharge ports are formed to discharge a cleaning solution and make the cleaning solution flow down along the peripheral edge side upper surface of the inner cup, thereby cleaning the peripheral edge side upper surface, and to discharge the cleaning solution outward in the radial direction and obliquely upward.