Patent ID: 8758978

Claim:
A radiation-sensitive resin composition comprising: a first polymer including a repeating unit (I) shown by a general formula (1), and a fluorine atom in a molecule of the first polymer; a second polymer including an acid-labile group, being insoluble or scarcely soluble in an alkali, and not including the repeating unit (I) shown by the general formula (1); and a radiation-sensitive acid generator, wherein R 1 represents a hydrogen atom, a methyl group, or a trifluoromethyl group, X 1 represents a single bond, a group shown by —O—R 5 —, a group shown by —C(═O)—O—R 5 —, a group shown by —C(═O)—NH—R 5 —, a linear or branched alkanediyl group having 1 to 4 carbon atoms, or a phenylene group, wherein R 5 represents a single bond, or a linear, branched, or cyclic hydrocarbon group having 1 to 10 carbon atoms which optionally includes an ester group or an ether group, R 2 represents a linear, branched, or cyclic alkanediyl group having 1 to 20 carbon atoms and being substituted or unsubstituted, a substituted or unsubstituted alkenylene group having 2 to 20 carbon atoms, a substituted or unsubstituted arylene group having 6 to 10 carbon atoms, or a substituted or unsubstituted aralkylene group, R 3 represents a hydrogen atom, a linear, branched, or cyclic alkyl group having 1 to 20 carbon atoms and being substituted or unsubstituted, a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, or a substituted or unsubstituted aralkyl group, or R 2 and R 3 bond to each other to form a cyclic structure having 3 to 20 carbon atoms together with a nitrogen atom bonded to R 2 and R 3 , and R 4 represents an acid-labile group.