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.
Chemically-amplified positive resist composition and resist patterning process using the same
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US09500949B2
公开(公告)日:2016-11-22
The present invention provides a chemically-amplified positive resist composition including a sulfonium salt capable of providing a pattern having an extremely high resolution with low line edge roughness, and also provides a resist patterning process using the same.
The present invention was accomplished by a chemically-amplified positive resist composition including: (A) a salt represented by the following general formula (1); and (B) a resin containing a repeating unit represented by the following general formula (U-1) that dissolves by acid action and increases solubility in an alkaline developer, and a resist patterning process using the same.
Electroreductive coupling of halofluoro compounds with aldehydes
作者:Tatsuya Shono、Naoki Kise、Hideaki Oka
DOI:10.1016/0040-4039(91)80223-s
日期:1991.11
Electroreductive intermolecular coupling of halofluoro compounds such as 1,1,1-trichloro-2,2,2-trifluoroethane, methyl chlorodifluoroacetate, and perfluoroalkyl halides with aldehydes took place effectively in the presence of chlorotrimethylsilane and one of the coupling products, 2,2-dichloro-3,3,3-trifluoro-1-phenyl-1-propanol, was selectively convertible to a variety of compounds with using the electroreduction as a key reaction.