Patent ID: 6503682
Filing Date: 2003-01-07
Classification: G03F

Abstract:
A photoresist composition comprising: (i) a photosensitive material obtained by mixing about 30-70% by weight of a first photosensitive compound represented by formula (1) with about 70-30% by weight of a second photosensitive compound represented by formulae (2a) or (2b); (ii) a resin; and (iii) a solvent wherein in formula (1), R1 and R2 are independently selected from the group consisting of a hydrogen atom, a 1,2-naphthoquinone diazide-4-sulfonyl group, a 1,2-naphthoquinone diazide-5-sulfonyl group, a 1,2-naphthoquinone diazide-6-sulfonyl group, and mixtures thereof, and R1 and R2 cannot be a hydrogen atom at the same time, n1 and n2 represent 0, 1, 2 or 3 and cannot be 0 at the same time, and wherein in formulae (2a) and (2b), R3, R4 and R5 are independently selected from the group consisting of a hydrogen atom, a 1,2-naphthoquinone diazide-4-sulfonyl group, a 1,2-naphthoquinone diazide-5-sulfonyl group, a 1,2-naphthoquinone diazide-6-sulfonyl group, and mixtures thereof, and R3, R4 and R5 cannot be a hydrogen atom at the same time, X1a, X1b, X1c, X1d, X2a, X2b and X2c are independently selected from a hydrogen atom or an alkyl group, and n3 represents 1 or 2.