The present invention relates to: a resist composition such as a chemically amplified resist composition for providing an excellent pattern profile even at a substrate-side boundary face of resist, in addition to a higher resolution in photolithography for micro-fabrication, and particularly in photolithography adopting, as an exposure source, KrF laser, ArF laser, F
2
laser, ultra-short ultraviolet light, electron beam, X-rays, or the like; and a patterning process utilizing the resist composition. The present invention provides a chemically amplified resist composition comprising one or more kinds of amine compounds or amine oxide compounds (except for those having a nitrogen atom of amine or amine oxide included in a ring structure of an aromatic ring) at least having a carboxyl group and having no hydrogen atoms covalently bonded to a nitrogen atom as a basic center.
NOVEL PHOTOACID GENERATOR, RESIST COMPOSITION, AND PATTERNING PROCESS
申请人:OHASHI Masaki
公开号:US20090061358A1
公开(公告)日:2009-03-05
Photoacid generators generate sulfonic acids of formula (1a) or (1c) upon exposure to high-energy radiation.
R
1
—COOCH(CF
3
)CF
2
SO
3
+
H
+
(1a)
R
1
—O—COOCH(CF
3
)CF
2
SO
3
−
H
+
(1c)
R
1
is a C
20
-C
50
hydrocarbon group having a steroid structure. The photoacid generators are compatible with resins and can control acid diffusion and are thus suited for use in chemically amplified resist compositions.
Novel photoacid generators, resist compositions, and patterning process
申请人:Ohsawa Youichi
公开号:US20080085469A1
公开(公告)日:2008-04-10
Photoacid generators generate sulfonic acids of formula (1a) upon exposure to high-energy radiation.
RC(═O)R
1
—COOCH(CF
3
)CF
2
SO
3
−
H
+
(1a)
R is hydroxyl, alkyl, aryl, hetero-aryl, alkoxy, aryloxy or hetero-aryloxy, R
1
is a divalent organic group which may have a heteroatom (O, N or S) containing substituent, or R
1
may form a cyclic structure with R. The photoacid generators are compatible with resins and can control acid diffusion and are thus suited for use in chemically amplified resist compositions.
Nitrogen-containing organic compound, resist composition and patterning process
申请人:Watanabe Takeru
公开号:US20080102405A1
公开(公告)日:2008-05-01
A resist composition comprising as a quencher a nitrogen-containing organic compound bearing a nitrogen-containing heterocycle and having a molecular weight of at least 380 exhibits a high resolution and satisfactory mask coverage dependence and is useful in microfabrication using electron beam or deep-UV.
LACTONE-CONTAINING COMPOUND, POLYMER, RESIST COMPOSITION, AND PATTERNING PROCESS
申请人:HASEGAWA Koji
公开号:US20090233242A1
公开(公告)日:2009-09-17
Lactone-containing compounds having formula (1) are novel wherein R
1
is H, F, methyl or trifluoromethyl, R
2
and R
3
are H or monovalent hydrocarbon groups, or R
2
and R
3
may together form an aliphatic hydrocarbon ring, R
4
is H or CO
2
R
5
, R
5
is a monovalent hydrocarbon group, W is CH
2
, O or S, and k
1
is 3, 4 or 5. They are useful as monomers to produce polymers which are transparent to radiation ≦500 nm. Radiation-sensitive resist compositions comprising the polymers as base resin exhibit excellent properties including resolution, LER, pattern density dependency and exposure margin.