Patent ID: 8026201

Claim:
A stripping composition comprising: an organic fluoride salt; an organic quaternary ammonium base; and an organic solvent, further wherein the stripping composition is free of water and is capable of removing silicon containing coating, and further where the fluoride salt is selected from the group consisting of diquaternary ammonium difluoride salts, compounds having the formulae where R 1 is zero to three substituents, each of which are independently alkyl, alkenyl, aryl alkanoyl, alkoxy, or nitro; and R 2 is an alkyl group diquaternary ammonium fluoride salts of 1,4-diazabicyclo[2.2.2]octane, 1-fluoro-4-chloromethyl-1,4-diazoniabicyclo[2.2.2] octane bis(tetrafluoroborate), 1-fluoro-4-hydroxy-1,4-diazoniabicyclo [2.2.2]octane bis(tetrafluoroborate), N,N′-difluoro-2,2′-bipyridinium bis(tetrafluoroborate), ‘N—F’ reagents, ‘[N—F] + ’ reagents, 2,2-difluoro-1,3-dimethylimidazolidine, diethylaminosulfur trifluoride, R a R b N—CF 2 —R c , where R a is hydrogen or alkyl and R b and R c are each selected from alkyl or aryl, and perfluorobutanesulfonyl fluoride, the hydrates thereof, as well as mixtures thereof.