Patent ID: 7994108

Claim:
An aqueous-based removal composition for the removal of photoresist and/or bottom anti reflective coating (BARC) materials from a microelectronic device, said composition comprising at least one chaotropic solute, urea, and at least one alkaline salt in an aqueous medium, wherein the at least one chaotropic solute comprises a chaotropic species selected from the group consisting of: guanidinium salts; 2-, 3-, and 4-nitrobenzoic acid; 2-, 3-, and 4-anisic acid; 2-, 3-, and 4- fluoro-, chloro-, bromo-, and iodo-benzoic acid; 2-, 3-, and 4-methylthio -benzoic acid; 2-, 3-, and 4-methylthio-aniline; 2-, 3-, and 4-anisidine; melamine; 2,4-diamino-6-phenyl-1,3,5-triazine; 2- chloro-4,6-diamino-1,3,5-triazine; 2,4,6-trimethoxy-1,3,5-triazine; 2,4-diamino-1,3,5-triazine; 2-amino-1,3,5-triazine; 2-amino-4-ethoxy-6-(methylamino)-1,3,5-triazine; 2-methoxy-4-methyl-6-(methylamino)-1,3,5-triazine; 2-mercaptobenzimidazole; and combinations thereof, wherein the at least one alkaline salt comprises (NR 1 R 2 R 3 R 4 )OH, wherein R 1 , R 2 , R 3 and R 4 are the same as or different from one another and each is independently selected from the group consisting of hydrogen, C 1 -C 6 alkyl groups, and benzyl groups.