Patent ID: 8501385
Filing Date: 2013-08-06
Classification: C08F,G03F,H01L

Abstract:
1. A positive-tone radiation-sensitive composition used in a resist pattern-forming method as a first positive-tone radiation-sensitive composition and comprising: a first polymer including an acid-labile group and a crosslinkable group; a photoacid generator; a solvent; and, the resist pattern-forming method comprising: wherein the first polymer includes at least one of a fourth repeating unit shown by a following formula (3-1) and a fifth repeating unit shown by a following formula (3-2), wherein R 1 represents a hydrogen atom, a methyl group, or a trifluoromethyl group, R 5 represents a methylene group, an ethylene group, or a propylene group, R 6 represents a group shown by a following general formula (4) or a group shown by a following formula (5), R 7 represents a methylene group or an alkylene group having 2 to 6 carbon atoms, R 8 represents a hydrogen atom, a methyl group, or an ethyl group, and n is 0 or 1, wherein each of R 9 represents at least one of a hydrogen atom and a linear or branched alkyl group having 1 to 10 carbon atoms.