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:
Oct. 16, 2001
Filed:
Oct. 14, 1999
Eternal Chemical Co., Ltd., , TW;
Abstract
The invention provides a chemical-mechanical abrasive composition for semiconductor processing, which composition is characterized by comprising a water-soluble anionic chemical. According to the invention, said water-soluble anionic chemical would be coated on the surface of a metal film during the polishing of said metal film so as to inhibit the formation of depressions on the resultant metal circuits. In another aspect, the invention provides a chemical-mechanical abrasive composition in the form of a slurry comprising 70-99.5% by weight of an aqueous medium; 0.1-25% by weight of an abrasive particle; 0.01-2.0% by weight of an abrasion enhancer; and 0.01-1% by weight of a water-soluble anionic chemical. The chemical-mechanical abrasive composition of the invention may further comprise an oxidant to enhance the abrasion rate.