Patent ID: 8192644

Claim:
A chemical mechanical polishing slurry, comprising: a) a concentrate, comprising: about 0.5 wt % to about 10 wt %, based on the total weight of said concentrate, of an abrasive; about 1 wt % to about 20 wt %, based on the total weight of said concentrate, of a complexing agent; and a corrosion inhibitor; b) water; and c) an oxidizer, wherein said water and said oxidizer are present in the slurry in an amount governed by the formula: 0. 8≦[oxidizer]/ f≦ 2.0, wherein f=A+B*[complexing agent] c , wherein A is between 0.35 and 0.8, B is between 0.3 and 0.5, and C is about 1, and [oxidizer] and [complexing agent] are the amounts of the oxidizer and complexing agent in the slurry, respectively.