Patent ID: 8497209
Filing Date: 2013-07-30
Classification: C09G,C09K,C23F,H01L

Abstract:
1. A chemical-mechanical polishing (CMP) composition comprising: (a) an amino compound; (b) a radical-forming oxidizing agent; (c) a radical trapping agent capable of inhibiting radical-induced oxidation of the amino compound, the radical trapping agent wherein the radical trapping agent comprises a nitrogenous compound selected from the group consisting of an aromatic nitro compound, a heteroaromatic nitro compound, an aliphatic nitro compound, a nitroso compound, a nitrogen free radical-type compound, an N-oxide compound, an N-hydroxyl-imine compound, an acylamino-substituted aromatic compound, an N-acyl-enamine compound, and a combination of two or more of the foregoing nitrogenous compounds; and (d) an aqueous carrier therefor.