Patent ID: 6964840

Claim:
A radiation-sensitive resin composition comprising: A. an acid-labile group-containing resin containing a recurring unit of the following formula (1), wherein R 1 represents a hydrogen atom or a monovalent acid-labile group, X 1 represents a linear or branched fluoroalkyl group having 1-4 carbon atoms, and R 2 represents a hydrogen atom, a linear or branched alkyl group having 1-10 carbon atoms, or a linear or branched fluoroalkyl group hving 1-10 carbon atoms, and a recurring unit represented by the following formula (2), wherein any two of the R 3 groups form, in combination and together with the carbon atom with which these groups bond, a divalent alicyclic hydrocarbon group having 4-20 carbon atoms or a derivative thereof, with the remaining R 3 group being a linear or branched alkyl group having 1-4 carbon atoms or a monovalent alicyclic hydrocarbon group having 4-20 carbon atoms or derivative thereof, and (B) a photoacid generator.