Abstract:
A radiation-sensitive resin composition includes a first polymer including an acid-labile group, an acid generator to generate an acid upon exposure to radiation, and a second polymer including a fluorine atom and a functional group shown by a general formula (x). The second polymer has a fluorine atom content higher than a fluorine atom content of the first polymer. R1 represents an alkali-labile group. A represents an oxygen atom, —NR′—, —CO—O—# or —SO2—O—##, wherein the oxygen atom represented by A is not an oxygen atom bonded directly to an aromatic ring, a carbonyl group, or a sulfoxyl group, R′ represents a hydrogen atom or an alkali-labile group, and “#” and “##” each indicate a bonding hand bonded to R1. -A-R1 (x)
Abstract:
A radiation-sensitive resin composition includes a polymer component, a radiation-sensitive acid generating agent, and a nitrogen-containing compound having a ring structure. The polymer component includes, in an identical polymer or different polymers, a first structural unit represented by a formula (1) and a second structural unit represented by a formula (2). R1 represents a hydrogen atom or a methyl group. Z is a group which represents a divalent monocyclic alicyclic hydrocarbon group taken together with R2. R2 represents a carbon atom. R3 represents a methyl group or an ethyl group. R4 represents a hydrogen atom or a methyl group. X is a group which represents a divalent bridged alicyclic hydrocarbon group having no less than 10 carbon atoms taken together with R5. R5 represents a carbon atom. R6 represents a branched alkyl group having 3 or 4 carbon atoms.