Patent ID: 6319885
Filing Date: 2001-11-20
Classification: B24B,C09D,C11D,C23G,G03F,H01L

Abstract:
An etching residue remover, comprising(a) from about 5 to about 50% by weight of at least one nucleophilic amine compound having oxidation and reduction potentials selected from the group consisting ofcompounds of formula I and salts thereof, ##STR8##wherein R.sub.1, R.sub.2, and R.sub.3 are independently hydrogen, a hydroxyl group, a substituted C.sub.1 -C.sub.6 straight, branched or cyclo alkyl, alkenyl, or alkynyl group, a substituted acyl group, straight or branched alkoxy group, amidyl group, carboxyl group, alkoxyalkyl group, alkylamino group, alkylsulfonyl group, or sulfonic acid group, or salts or derivatives thereof; wherein at least one of R.sub.1, R.sub.2, and R.sub.3 is selected from the group consisting of a hydroxyl group, substituted C.sub.1 -C.sub.6 straight, branched, and cyclo alkyl, alkenyl, and alkynyl groups, substituted acyl groups, straight and branched alkoxy groups, amidyl groups, carboxyl groups, alkoxyalkyl groups, alkylamino groups, alkylsulfonyl groups, sulfonic acid groups, and salts and derivatives thereof; andcompounds of formula II and salts thereof, ##STR9##wherein R.sub.7, R.sub.8, R.sub.9, and R.sub.10 are independently hydrogen, a hydroxyl group, a substituted C.sub.1 -C.sub.6 straight, branched or cyclo alkyl, alkenyl, or alkynyl group, a substituted acyl group, straight or branched alkoxy group, amidyl group, carboxyl group, alkoxyalkyl group, alkylamino group, alkylsulfonyl group, or sulfonic acid group; wherein at least one of R.sub.7, R.sub.8, R.sub.9, and R.sub.10 is selected from the group consisting of a hydroxyl group, substituted C.sub.1 -C.sub.6 straight, branched, and cyclo alkyl, alkenyl, and alkynyl group, substituted acyl groups, straight and branched alkoxy groups, amidyl groups, carboxyl groups, alkoxyalkyl groups, alkylamino groups, alkylsulfonyl groups, sulfonic acid groups, and salts and derivatives thereof;(b) from about 10 to about 80% by weight of at least one alkanolamine which is miscible with the at least one nucleophilic amine compound wherein the at least one alkanolamine has the formula R.sub.22 R.sub.23 --N--CH.sub.2 CH.sub.2 --O--CH.sub.2 CH.sub.2 OH wherein R.sub.22 and R.sub.23 are H, CH.sub.3, CH.sub.3 CH.sub.2 or CH.sub.2 CH.sub.2 OH;(c) from 2.5% to about 30% by weight of at least one compound sufficient to provide stability to the composition and/or to maintain activity, which at least one compound is selected from the group consisting ofa compound of formula III, ##STR10##wherein R.sub.15 and R.sub.16 is H, t-butyl, OH or COOH;a compound of formula IV, ##STR11##wherein R.sub.17 is OH or COOH;an ethylene diamine tetracarboxylic acid of formula V, ##STR12##wherein R.sub.18, R.sub.19, R.sub.20 and R.sub.21 is H, NH.sub.4 or an ammonium salt thereof; andan alkyl ammonium hydroxide of formula VI,R.sub.11 R.sub.12 R.sub.13 R.sub.14 NOHwherein R.sub.11, R.sub.12, R.sub.13 and R.sub.14 are each, independently, a short chain alkyl group having from 1 to 5 carbon atoms; and(d) a balance of water, wherein the at least one nucleophilic amine compound, the at least one alkanolamine and the at least one compound are present in sufficient amounts to remove etching residue from a substrate.