POLYMERIZABLE FLUORINE-CONTAINING MONOMER, FLUORINE-CONTAINING POLYMER AND METHOD OF FORMING RESIST PATTERN
申请人:Yamashita Tsuneo
公开号:US20100297564A1
公开(公告)日:2010-11-25
A polymerizable fluorine-containing monomer and a fluorine-containing polymer which are suitable for a resist layer and a protective layer of a laminated resist for forming a fine pattern in production of semiconductor devices, and further are useful especially in immersion lithography using water as a liquid medium, and a method of forming a resist pattern are provided. The polymerizable fluorine-containing monomer is represented by the formula (1):
wherein R
1
is hydrogen atom or a monovalent saturated or unsaturated hydrocarbon group of 1 to 15 carbon atoms, and the hydrocarbon group may be chain or cyclic structure and may have oxygen atom, nitrogen atom, sulfur atom or halogen atom, the polymer is a homopolymer or copolymer of the monomer, and the method of forming a resist pattern using such a homopolymer or copolymer is carried out by immersion lithography.
提供了一种适用于半导体器件生产中形成细微图案的层压光刻胶的抗蚀层和保护层的聚合可聚合含氟单体和含氟聚合物,特别适用于使用水作为液体介质的浸没光刻术,并提供了一种形成光刻胶图案的方法。可聚合含氟单体由公式(1)表示:其中R1是氢原子或1至15个碳原子的单价饱和或不饱和碳氢基团,碳氢基团可以是链状或环状结构,并且可以具有氧原子、氮原子、硫原子或卤素原子,聚合物是单体的均聚物或共聚物,使用这种均聚物或共聚物进行光刻胶图案形成的方法是通过浸没光刻术实现的。