Patent ID: 7247566

Claim:
A method of chemically mechanically polishing a substrate surface comprising: A) providing a substrate, said substrate being a semiconductor material or memory device material and having a surface comprising at least one material comprising copper, iron, nickel, tungsten, titanium, aluminum, polysilicon, or noble metals; B) providing a fluid polishing composition comprising an organosulfonic acid oxidizer, said organosulfonic acid oxidizer having one ring structure comprising carbon, a sulfonate moiety substituted onto a carbon atom in the ring structure, and a polar moiety substituted onto the ring on an ortho position or a meta position from the sulfonate moiety; wherein said polar moiety substituted onto the ring in the ortho or meta position from the sulfonate moiety comprises a sulfonate moiety, a sulfate moiety, a nitro moiety, a nitroso moiety, a hydroxyl moiety, a carboxylate moiety, a sulfamic acid moiety, or a methoxy moiety, C) providing a pad; and D) moving the pad against the substrate with the polishing composition therebetween to effect chemical mechanical polishing of at least one material comprising copper, iron, nickel, tungsten, titanium, aluminum, polysilicon, or noble metals.