Patent ID: 8993212
Filing Date: 2015-03-31
Classification: C07C,G03F,Y10S

Abstract:
1. A resist composition comprising at least a base resin, a photoacid generator and a solvent, wherein the photoacid generator comprises a fluorine-containing sulfonic acid salt of the following general formula (4): where X each independently represents a hydrogen atom or a fluorine atom; n represents an integer of 1 to 10; R 1 represents a hydrogen atom, a C 1 -C 20 alkyl group, a C 2 -C 20 alkenyl group or oxoalkyl group, or a C 6 -C 18 aryl group or aralkyl group; any of hydrogen atoms on carbons in R 1 may be substituted with a substituent; R 2 represents either R A O or R B R C N; R A , R B and R C each independently represents a hydrogen atom, a C 1 -C 20 alkyl group, a C 2 -C 20 alkenyl group, a C 1 -C 20 oxoalkyl group, a C 6 -C 18 aryl group, a C 6 -C 18 aralkyl group, or a C 3 -C 30 lactone group; R B and R C may be bonded to each other to form a 3- to 18-membered heterocyclic ring with a nitrogen atom (N) in R B R C N; any of hydrogen atoms on carbons in R A , R B and R C may be substituted with a substituent; A represents any one of groups of the following formulas: and M + represents a monovalent cation.