Patent ID: 6604987
Filing Date: 2003-08-12
Classification: C09G,C09K,C23F

Abstract:
A method of polishing a nickel-containing substrate comprising:(i) contacting the substrate with a chemical-mechanical polishing system comprising: (a) an abrasive, a polishing pad, or both an abrasive and a polishing pad, (b) a silver salt comprising a silver ion, (c) a secondary oxidizing agent, and (d) a liquid carrier, and (ii) abrading at least a portion of the substrate to polish the substrate, wherein the amount of the silver ion is about 0.1 wt. % to about 3 wt. % and the wt. % amount of the secondary oxidizing agent is about 3 or less times the wt. % amount of the silver salt, based on the weight of the liquid carrier and anything dissolved or suspended therein.