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:
Feb. 21, 2006
Filed:
Mar. 16, 2004
Applicants:
Renjie Zhou, Aurora, IL (US);
Steven K. Grumbine, Aurora, IL (US);
Issac K. Cherian, Aurora, IL (US);
Inventors:
Renjie Zhou, Aurora, IL (US);
Steven K. Grumbine, Aurora, IL (US);
Issac K. Cherian, Aurora, IL (US);
Assignee:
Cabot Microelectronics Corporation, Aurora, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention provides a chemical-mechanical polishing system comprising an abrasive, a carrier, and either boric acid, or a conjugate base thereof, wherein the boric acid and conjugate base are not present together in the polishing system in a sufficient amount to act as a pH buffer, or a water-soluble boron-containing compound, or salt thereof, that is not boric acid, and a method of polishing a substrate using the chemical-mechanical polishing system.