Abstract:
The present invention provides a radiation-sensitive resin composition that contains a polymer having a structural unit that includes an acid-labile group; and an acid generator, wherein the acid generator includes a compound including a sulfonate anion having SO3−, wherein a hydrogen atom or an electron-donating group bonds to an α carbon atom with respect to SO3−, and an electron-withdrawing group bonds to a β carbon atom with respect to SO3−; and a radiation-degradable onium cation. The compound preferably has a group represented by the following formula (1-1) or (1-2). In the following formulae (1-1) and (1-2), R1 and R2 each independently represent a hydrogen atom or a monovalent electron-donating group. R3 represent a monovalent electron-withdrawing group. R4 represents a hydrogen atom or a monovalent hydrocarbon group.
Abstract:
The present invention provides a radiation-sensitive resin composition that contains a polymer having a structural unit that includes an acid-labile group; and an acid generator, wherein the acid generator includes a compound including a sulfonate anion having SO3−, wherein a hydrogen atom or an electron-donating group bonds to an α carbon atom with respect to SO3−, and an electron-withdrawing group bonds to a β carbon atom with respect to SO3−; and a radiation-degradable onium cation. The compound preferably has a group represented by the following formula (1-1) or (1-2). In the following formulae (1-1) and (1-2), R1 and R2 each independently represent a hydrogen atom or a monovalent electron-donating group. R3 represent a monovalent electron-withdrawing group. R4 represents a hydrogen atom or a monovalent hydrocarbon group.
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.