Patent ID: 7144849
Filing Date: 2006-12-05
Classification: C11D,C23G,G03F

Abstract:
1. A resist and etching residue removal composition comprising: (1) from about 5% to 50% by weight of hydroxylamine or a derivative thereof having a general formula of: wherein R 1 , R 2 , and R 3 are independently hydrogen; optionally, a substituted C 1 –C 6 straight, branched or cyclo alkyl, alkenyl, or alkynyl group; optionally, a substituted acyl group; a straight or branched alkoxy group, amidyl group, carboxyl group, alkoxyalkyl group, alkylamino group, alkylsulfonyl group, or sulfonic acid group; or a salt thereof; (2) from about 10% to 80% by weight of at least one organic solvent selected from the group consisting of dimethylsulfoxide, N-methyl-2-pyrrolidinone, N,N-dimethylpropanamide, N,N-diethylformamide, ethylene glycol, ethylene glycol alkyl ether, diethylene glycol alkyl ether, triethylene glycol alkyl ether, propylene glycol, propylene glycol alkyl ether, dipropylene glycol alkyl ether, tripropylene glycol alkyl ether, N-substituted pyrrolidone, and mixtures thereof; (3) from about 5% to 30% by weight of one or more aromatic hydroxy-functional compounds of formula II: wherein n=1–4, m=2–5, and each R is independently hydrogen; optionally, a substituted C 1 –C 6 straight, branched or cyclo alkyl, alkenyl, or alkynyl group; optionally, a substituted acyl group a straight or branched alkoxy group, amidyl group, carboxyl group, alkoxyalkyl group, alkylamino group, alkylsulfonyl group, or sulfonic acid group; or a salt thereof; and (4) water, wherein said composition does not contain an alkanolamine.