Patent ID: 8187790

Claim:
A composition for a chemically amplified resist comprising: about 100 parts by weight of a polymer represented as wherein, X represents a norbornene derivative, R 1 , R 2 , R 3 , and R 4 represent an alkyl group with 1 to 30 carbon atoms containing at least one functional group of a hydrogen atom, an ether group, an ester group, a carbonyl group, an acetal group, an epoxy group, a nitryl group (—CN), and an aldehyde group, l, m, n, o and p respectively represent repeating units, l represents a real number of 0.05 to 0.5, m and n respectively represent real numbers of 0.1 to 0.7, o and p respectively represent real numbers of 0 to 0.7, and a sum of l, m, n, o and p is 1; about 0.5 to 15 parts by weight of an acid generator represented as wherein, R 5 and R 6 respectively represent an alkyl group, an allyl group, a perfluoroalkyl group, a benzyl group, or an aryl group, R 7 , R 8 and R 9 respectively represent hydrogen, an alkyl group, a halogen group, an alkoxy group, an aryl group, a thiophenoxy group, a thioalkoxy group, or an alkoxycarbonylmethoxy group, and A is selected from the group consisting of N(CF 3 ) 2 , N(C 2 F 6 ) 2 , and N(C 4 F 9 ) 2 ; about 0.1 to 5 parts by weight of a base additive; and about 500 to 3000 parts by weight of solvent.