Polymer, resist protective coating material, and patterning process
申请人:Hatakeyama Jun
公开号:US20070178407A1
公开(公告)日:2007-08-02
A polymer comprising repeat units having formula (1) wherein R
1
and R
2
are hydrogen or C
1
-C
12
alkyl, or R
1
and R
2
may bond together to form a ring, and R
30
is hydrogen or methyl is used to formulate a resist protective coating material. A protective coating formed therefrom on a resist film is water-insoluble, dissolvable in alkali aqueous solution or alkaline developer, and immiscible with the resist film so that the immersion lithography can be conducted in a satisfactory manner. During alkali development, development of the resist film and removal of the protective coating can be simultaneously achieved.
US7642034B2
申请人:——
公开号:US7642034B2
公开(公告)日:2010-01-05
US7981589B2
申请人:——
公开号:US7981589B2
公开(公告)日:2011-07-19
FLUORINATED MONOMER, FLUORINATED POLYMER, RESIST COMPOSITION AND PATTERNING PROCESS
申请人:HASEGAWA Koji
公开号:US20090035699A1
公开(公告)日:2009-02-05
Fluorinated monomers of formula (1) are useful in producing polymers for the formulation of radiation-sensitive resist compositions. R
1
is H or monovalent C
1
-C
20
hydrocarbon group, R
2
is H, F, methyl or trifluoromethyl, R
3
and R
4
are H or a monovalent C
1
-C
8
hydrocarbon group, or R
3
and R
4
may form an aliphatic hydrocarbon ring, and A is a divalent C
1
-C
6
hydrocarbon group.