FLUORINATED ESTER MONOMER, MAKING METHOD, FLUORINATED ESTER POLYMER, AND DIFLUOROHYDROXYCARBOXYLIC ACID
申请人:KINSHO Takeshi
公开号:US20120083580A1
公开(公告)日:2012-04-05
A fluorinated ester monomer is provided having formula (1) wherein R
1
is H, CH
3
or CF
3
, R
2
and R
3
are H or a monovalent hydrocarbon group, or R
2
and R
3
forms a hydrocarbon ring, R
4
is a monovalent hydrocarbon group, and k is 0 or 1. A polymer obtained from the monomer has transparency to radiation with a wavelength of up to 200 nm and appropriate alkaline hydrolysis, is constructed such that any of water repellency, water slip and surface segregation may be adjusted by a choice of its structure, and is useful in forming ArF immersion lithography materials.