Patent ID: 8440097
Filing Date: 2013-05-14
Classification: C09G,H01L

Abstract:
1. A chemical mechanical polishing composition useful for chemical mechanical polishing a semiconductor wafer containing an interconnect metal, comprising, as initial components: water; 0.1 to 5 wt % of an azole inhibitor; 0.05 to 1 wt % of an alkali metal organic surfactant; 0.05 to 5 wt % of a hydrotrope; 0.1 to 5 wt % of a phosphorus containing agent; 0.05 to 5 wt % of a non-saccharide water soluble polymer; 0.05 to 5 wt % of a water soluble acid compound of formula I: wherein R is selected from a hydrogen and a C 1-5 alkyl group, and wherein x is 1 or 2; 0.01 to 5 wt % of a complexing agent; 0 to 25 wt % of an oxidizer; 0 to 10 wt % of an organic solvent; and, optionally, an abrasive.