Patent ID: 6638694
Filing Date: 2003-10-28
Classification: G03F,H01L

Abstract:
A resist stripping agent comprising:a stripping alkanolamine represented by the following formula (II): wherein R1 and R2 are each hydrogen atom, C1-C8 alkyl or C1-C8 alkenyl, R3 is C1-C10 alkyl, C1-C10 alkenyl, amino, hydroxyethyl, hydroxy-i-propyl, C1-C10 aminoalkyl, (C1-C10 alkyl)phenyl, phenyl(C1-C10)alkyl, C1-C10 alkoxy, (C1-C10)alkoxy(C1-C10)alkyl, hydroxy(C1-C10)alkyloxy(C1-C10)alkyl, C1-C10 alkylamino, amino(C1-C10)alkyloxy(C1-C10)alkyl, hydroxy(C1-C10)alkylamino(C1-C10)alkyl; R4 is hydrogen, â€”CH2OH, â€”CH(OH)CH3, C1-C10alkyl, C1-C10 alkenyl, amino, C1-C10 hydroxyalkyl, C1-C10aminoalkyl, (C1-C10 alkyl)phenyl, phenyl(C1-C10)alkyl, C1-C10 alkoxy, (C1-C10)alkoxy(C1-C10)alkyl, hydroxy(C1-C10)alkyloxy(C1-C10)alkyl, C1-C10 alkylamino, amino(C1-C10)alkyloxy(C1-C10)alkyl, hydroxy(C1-C10)alkylamino(C1-C10)alkyl; or R3 and R4 together with the nitrogen to which R3 and R4 are bonded may form cyclic amino having 1 to 12 carbon atoms; an additive amine selected from the group consisting of methylamine, ethylamine, propylamine, butylamine, ethanolamine, N-methylethanolamine, N-ethylethanolamine, diethanolamine, isopropanolamine, 2-(2-aminoethoxy)ethanol, ethylenediamine, propylenediamine, butylenediamine, diethylenetriamine, hydroxylamine, N,N-diethylhydroxylamine, piperazine and morpholine, the molar ratio of the stripping alkanolamine and the additive amine being 0.01 to 100; and a water-soluble organic solvent selected from the group consisting of dimethyl sulfoxide, N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, diethylene glycol monomethyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether and dipropylene glycol monobutyl ether in an amount of 5 to 80% by weight based on the resist stripping agent.