Patent ID: 8535871

Claim:
A radiation-sensitive resin composition comprising: a first polymer which includes a repeating unit having an acid-labile group and which becomes alkali-soluble upon dissociation of the acid-labile group; and a radiation-sensitive acid-generating agent, wherein the acid-labile group has a structure shown by a general formula (1), wherein R 1 represents a monovalent hydrocarbon group having 1 to 5 carbon atoms, R 2 represents a divalent hydrocarbon group that is bonded to R 4 to form a cyclic structure, the cyclic structure formed by R 2 and R 4 is a cyclopentyl group, a cyclohexyl group or a 2-adamantyl group, R 3 represents a fluorine atom or a trifluoromethyl group, the structure shown by the general formula (1) includes 7 or less fluorine atoms in total, R 4 represents a carbon atom, n 1 is an integer from 1 to 4, and a fluorine atom is not bonded to a carbon atom of the divalent hydrocarbon group represented by R 2 that is adjacent to the carbon atom represented by R 4 .