摘要:
A positive resist composition comprising 1,2-quinonediazide compound and, as an alkali-soluble resin, an alkali-soluble resin (A) which comprises a resin (I) obtainable through a condensation reaction of a mixture of m-cresol, 2,3,5-trimethylphenol and optionally p-cresol with an aldehyde and a low molecular weight novolak (II) having a weight average molecular weight of 200 to 2000 as converted to polystyrene, an alkali-soluble resin (B) which comprises a resin (I) and a compound of the general formula (III): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are respectively a C.sub.1 -C.sub.5 alkyl group or a C.sub.1 -C.sub.5 alkoxy group, 1, m and n are respectively a number of 0 to 3, R' is a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group, or an alkali-soluble resin (C) which comprises a resin (IV) obtainable through a condensation reaction of a mixture of m-methoxyphenol and 2,3,5-trimethylphenol in a molar ratio of 80:20 to 30:70 with an aldehyde, which has good sensitivity, improved resolution and heat resistance.
摘要:
A positive resist composition comprising 1,2-quinonediazide compound and, as an alkali-soluble resin, an alkali-soluble resin (A) which comprises a resin (I) obtainable through a condensation reaction of a mixture of m-cresol, 2,3,5-trimethylphenol and optionally p-cresol with an aldehyde and a low molecular weight novolak (II) having a weight average molecular weight of 200 to 2000 as converted to polystyrene, an alkali-soluble resin (B) which comprises a resin (I) and a compound of the general formula (III): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are respectively a C.sub.1 -C.sub.5 alkyl group or a C.sub.1 -C.sub.5 alkoxy group, l, m and n are respectively a number of 0 to 3, R' is a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group, or an alkali-soluble resin (C) which comprises a resin (IV) obtainable through a condensation reaction of a mixture of m-methoxyphenol and 2,3,5-trimethylphenol in a molar ratio of 80:20 to 30:70 with an aldehyde, which has good sensitivity, improved resolution and heat resistance.
摘要:
A positive resist composition comprising 1,2-quinonediazide compound and, as an alkali-soluble resin, an alkali-soluble resin (A) which comprises a resin (I) obtainable through a condensation reaction of a mixture of m-cresol, 2,3,5-trimethylphenol and optionally p-cresol with an aldehyde and a low molecular weight novolak (II) having a weight average molecular weight of 200 to 2000 as converted to polystyrene, an alkali-soluble resin (B) which comprises a resin (I) and a compound of the general formula (III): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are respectively a C.sub.1 -C.sub.5 alkyl group or a C.sub.1 -C.sub.5 alkoxy group, 1, m and n are respectively a number of 0 to 3, R' is a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group, or an alkali-soluble resin (C) which comprises a resin (IV) obtainable through a condensation reaction of a mixture of m-methoxyphenol and 2,3,5-trimethylphenol in a molar ratio of 80:20 to 30:70 with an aldehyde, which has good sensitivity, improved resolution and heat resistance.
摘要:
A positive resist composition containing, in admixture, an alkali-soluble resin, a quinone diazide compound and a mixed solvent of ethyl lactate and at least one solvent selected from the group consisting of (a) n-amyl acetate and (b) 2-heptanone in a weight ratio of 5:95 to 80:20, which composition has a good coating properties and provides an improved profile and a large depth of focus.
摘要:
A positive resist composition comprising, in admixture, an alkali-soluble resin, a quinone diazide compound and a mixed solvent of (B) at least one organic solvent selected from the group consisting of &ggr;-butyrolactone, 3-methoxybutanol and cyclohexanone and (A) an organic solvent other than the solvents (B) which does not have simultaneously an alkylcarbonyl group and an alkoxy group in a molecule and has a boiling point of from 140 to 180° C. under atmospheric pressure (B), which composition has a large &ggr;-value and provides an improved profile and a large depth of focus.
摘要:
A positive resist composition which comprises, in admixture, an alkali-soluble resin; at least one quinone diazide sulfonate of a polyhydric phenol compound of the formula: ##STR1## wherein R.sub.1 to R.sub.5 are independently a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group, provided that at least one of R.sub.1 and R.sub.2 is an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group; anda quinone diazide sulfonate of a phenol compound of the formula ##STR2## wherein R.sub.6 to R.sub.10 are independently a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group, provided that at least one of R.sub.6 and R.sub.7 is an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group.
摘要:
A polyhydric phenol compound of the formula: ##STR1## wherein R.sub.1 to R.sub.5 are independently a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group, provided that at least one of R.sub.1 and R.sub.2 is an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group, and its quinone diazide sulfonate which gives a positive resist composition having improved sensitivity and a good depth of focus.
摘要:
A polyhydric phenol compound of the formula: ##STR1## wherein R.sub.1 to R.sub.5 are independently a hydrogen atom, an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group, provided that at least one of R.sub.1 and R.sub.2 is an alkyl group, an alkenyl group, a cycloalkyl group or an aryl group, and its quinone diazide sulfonate which gives a positive resist composition having improved sensitivity and a good depth of focus.
摘要:
A resist composition comprising an alkali-soluble resin, a 1,2-quinone diazide compound and a compound of the general formula (I): ##STR1## wherein Z is an oxygen or sulfur atom or a group of the formula: >N--R.sub.4 in which R.sub.4 is a hydrogen atom or an alkyl group; R.sub.1, R.sub.2 and R.sub.3 are the same or different and independently a hydrogen atom, a substituted or unsubstituted alkyl group, a halogen atom, a hydroxyl group, a cyano group or a group of the formula: --OCOR" in which R" is a substituted or unsubstituted alkyl group; and X and Y are independently a cyano group or a group of the formula: ##STR2## --COOR or --CONHR' in R is an alkyl group and R' is a hydrogen atom or an aryl group, which is suitable for the formation of very fine patterns on a substrate having a high reflectance.
摘要:
A radiation sensitive compound prepared by reacting a phenol compound with a quinone diazide sulfonyl halide in a mixture of a solvent having a relative dielectric constant of not larger than 10 and a solvent having a relative dielectric constant of at least 15, which compound is less colored and gives a positive resist composition having a good resolution.