Patent ID: 8431332
Filing Date: 2013-04-30
Classification: G03F

Abstract:
1. 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 wherein, in the general formula (2-1), R 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 wherein, in the general formula (4), R