Patent ID: 6858371
Filing Date: 2005-02-22
Classification: G03F,Y10S

Abstract:
1. A photoresist polymer comprising the monomers of following Formula 1 and Formula 2 and at least one monomer selected from the group consisting of following Formula 3 and Formula 4: wherein, X 1 and X 2 are individually selected from the group consisting of H, CF 3 and halogen; R 1 , R 2 and R 3 are individually selected from the group consisting of H, F, CF 3 , OH, (C 1 -C 10 ) alkyl group, (C 1 -C 10 ) perfluoroalkyl group and (C 1 -C 10 ) alkoxy group; R′ is an acid labile protecting group or R 11 , R 12 and R 13 are individually selected from the group consisting of H, F, CF 3 , OH, (C 1 -C 10 ) alkyl group, (C 1 -C 10 ) perfluoroalkyl group and (C 1 -C 10 ) alkoxy group; R 7 , R 8 , R 9 and R 10 are selected from the group consisting of H, F, CF 3 and CH 3 ; R 14 , R 15 and R 16 are selected from the group consisting of H, F, CF 3 , (C 1 -C 10 ) alkyl group, (C 1 -C 10 ) perfluoroalkyl group and (C 1 -C 10 ) alkoxy group, wherein, at least one of R 14 , R 15 and R 16 are F, CF 3 or (C 1 -C 10 ) perfluoroalkyl group; wherein, Y 2 and Y 2 are individually selected from the group consisting of O, CH 2 and CH 2 CH 2 ; R is an acid labile protecting group or R 4 , R 5 and R 6 are individually selected from the group consisting of H, F, CF 3 , OH, (C 1 -C 10 ) alkyl group, (C 1 -C 10 ) perfluoroalkyl group and (C 1 -C 10 ) alkoxy group; i is an integer from 0 to 10; and f and q are 0 or 1.