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:
Jul. 06, 2004
Filed:
Jul. 17, 2002
Applicant:
Inventors:
Tatsuo Inoue, Kanagawa-ken, JP;
Mitsunori Komatsu, Kanagawa-ken, JP;
Assignee:
Ebara Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B 1/00 ;
U.S. Cl.
CPC ...
B24B 1/00 ;
Abstract
A polishing surface cleaning method and apparatus are capable of effectively removing the polishing residue from the polishing surface of a polishing table in a polisher by using a minimal amount of cleaning liquid. In the polisher, a workpiece to be polished is pressed against the polishing surface of the polishing table to polish the workpiece by relative motion between the polishing surface and the workpiece. The polishing surface cleaning apparatus uses mixing spray nozzles for mixing together a cleaning liquid and a gas and spraying the resulting fluid mixture on the polishing surface to clean it.