Patent ID: 6562726
Filing Date: 2003-05-13
Classification: G03F,H01L

Abstract:
A method for processing a semiconductor substrate, the method comprising:performing a dry etch process on said semiconductor substrate; and removing dry etch residues from said semiconductor substrate by exposing said semiconductor substrate to a conditioning solution, wherein the conditioning solution comprises: a fluorine source, a complementary acid, a non-aqueous solvent selected from the group consisting of tetrahydrofuran, propylene carbonate, and blends thereof, and a surface passivation agent comprising ethylene diamine tetraacetic acid or ascorbic acid; wherein said conditioning solution is substantially free of water, and said fluorine source, said complementary acid, said non-aqueous solvent and said passivation agent are present in said conditioning solution in concentrations suitable for the selective removal of said residues relative to any exposed metal on said semiconductor substrate.