Patent ID: 8431332

Claim:
A composition for forming an upper layer film in liquid immersion lithography comprising: a resin component; and a solvent, said resin component comprising a resin (A) having a repeating unit represented by the following formula (1-1) and a repeating unit represented by the following formula (2-1), wherein, in the general formula (1-1), R 1 is a hydrogen atom or a methyl group, R 2 and R 3 each individually are a methylene group, a linear or branched alkylene group having 2 to 6 carbon atoms, or an alicyclic alkylene group having 4 to 12 carbon atoms, wherein, in the general formula (2-1), R 4 is a hydrogen atom or a methyl group, and R 5 is a single bond, a methylene group, or a linear or branched alkylene group having 2 to 6 carbon atoms, wherein said resin component further comprises a resin (B) having a repeating unit represented by the following formula (3-1), a repeating unit represented by the following formula (3-2), a repeating unit represented by the following formula (3-3) or a combination thereof, and having a repeating unit represented by the following formula (4), said resin (B) forming a film having a receding contact angle with water of 65° or more, wherein, in the general formulae (3-1) to (3-3), R 6 individually is a hydrogen atom, a methyl group, or a trifluoromethyl group, R 6′ is a linear or branched alkyl group having 1 to 3 carbon atoms with at least one hydrogen atom being substituted by a fluorine atom, R 7 individually is a single bond, a methylene group, a linear or branched alkylene group having 2 to 6 carbon atoms, or an alicyclic alkylene group having 4 to 12 carbon atoms, R 8 is a linear or branched alkyl group having 1 to 10 carbon atoms with at least one hydrogen atom being substituted by a fluorine atom or an alicyclic alkyl group having 3 to 10 carbon atoms with at least one hydrogen atom being substituted by a fluorine atom, and A represents a single bond, a carbonyl group, a carbonyloxy group, or an oxycarbonyl group, wherein, in the general formula (4), R 9 is a hydrogen atom, a methyl group, or a trifluoromethyl group, and R 10 is a single bond, a methylene group, or a linear or branched alkylene group having 2 to 6 carbon atoms.