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:
May. 21, 2019
Filed:
Aug. 21, 2017
Tokyo Electron Limited, Tokyo, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A liquid processing apparatus performs a liquid processing on a rotating substrate by supplying a processing liquid. Surrounding members surround a region including an upper space of a cup body surrounding the rotating substrate and provided with an opening above the substrate. An air flow forming portion forms a descending air flow from an upper side of the cup body. A bottom surface portion blocks between the cup body and the surrounding member along a circumferential direction. An exhaust port is provided above the bottom surface portion and outside the cup body to exhaust an atmosphere in a region surrounded by the surrounding members and the bottom surface portion.