Patent ID: 8142675

Claim:
A method for polishing a substrate surface having at least one feature thereon comprising a noble metal, said method comprising: a) providing a substrate comprising submicron integrated circuits and having a surface having at least one feature thereon comprising a noble metal selected from the group consisting of Ru, Rh, Pd, Os, Ir, Pt, Ag, Au, alloys thereof, oxides thereof, and combinations thereof; b) providing a chemical mechanical polishing composition comprising: periodic acid in an amount from about 0.05 to about 0.3 moles/kilogram and an abrasive; and c) polishing said substrate surface with said chemical mechanical polishing composition, wherein said periodic acid and said abrasive are present in a combined amount sufficient to render the substrate surface substantially planar and wherein the polishing is maintained at a polishing rate of between 300 Angstroms per minute to about 2000 Angstroms per minute.