Patent ID: 6074801
Filing Date: 2000-06-13
Classification: G03F,Y10S

Abstract:
A negative photoresist composition comprising:a polymer which contains a repetition unit which is expressed by a general chemical formula (1);a crosslinker composed of a compound which contains a functional group which is expressed by a general chemical formula (2); anda photo-acid generator which generates acid in response to a light, ##STR60## where in the general chemical formula (1), R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is an alkylene group containing carbon atoms in a range of 7 to 18 and having a bridged cyclic hydrocarbon group, and a weight average molecular weight of the polymer is in a range of 1000 to 500000, and ##STR61## where in the general chemical formula (2), R.sup.8 is a hydrogen atom, or an alkyl group containing carbon atoms in a range of 1 to 6 or an oxoalkyl group containing carbon atoms in a range of 3 to 6.