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:
Nov. 17, 2015
Filed:
Apr. 19, 2012
Naoyuki Osada, Kyoto, JP;
Kentaro Sugimoto, Kyoto, JP;
Naoyuki Osada, Kyoto, JP;
Kentaro Sugimoto, Kyoto, JP;
SCREEN Holdings Co., Ltd., , JP;
Abstract
A spin base is caused to rotate at a number of revolutions of from 250 rmp to 350 rpm (first number of revolutions), and at the same time, a cleaning solution is supplied to a holding surface of a spin base while the upper end of a processing cup is placed below the holding surface. Thus, an outer upper surface of the processing cup is cleaned with the cleaning solution scattered from the holding surface. Then, the spin base is caused to rotate at a number of revolutions of from 350 rpm to 450 rpm (second number of revolutions) higher than the first number of revolutions, and at the same time, a cleaning solution is supplied onto the holding surface. Thus, a partition plate outside the processing cup is cleaned with the cleaning solution scattered from the rotating holding surface.