Patent ID: 7807613

Claim:
A composition for cleaning a semiconductor substrate, the composition comprising: a fluoride containing compound selected from a fluoroboric acid; a compound of the general formula R 1 R 2 R 3 R 4 NF, where R 1 , R 2 , R 3 and R 4 are independently hydrogen, an alcohol group, an alkoxy group or an alkyl group; and mixtures thereof, a buffer comprising a substantially 1:1 molar ratio of (A) an acid selected from a weak acid and a protonated base and (B) a base selected from an amine, ammonia, ammonium hydroxide and an alkyl ammonium hydroxide, and optionally an organic polar solvent wherein the solvent is miscible in water wherein the composition has a pH that ranges from greater than 7.0 to about 11.0.