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:
Sep. 16, 2025
Filed:
Mar. 22, 2022
Screen Holdings Co., Ltd., Kyoto, JP;
SCREEN Holdings Co., Ltd., , JP;
Abstract
A substrate processing apparatus includes a processing liquid tank, a first circulation pipe, a filter, a pump, and a controller. The first circulation pipe has an upstream end connected to the processing liquid tank and a downstream end connected to the processing liquid tank. A processing liquid circulates in the first circulation pipe. The filter is deposed in the first circulation pipe and captures particles contained in the processing liquid. The pump is disposed in the first circulation pipe. The pump includes a rotor and feeds the processing liquid by rotating the rotor. In activation of the pump in a stopped state, the controller controls the pump so that the rotor rotates at a rotational acceleration of no greater than 400 rpm/sec.