ONIUM SALT, RESIST COMPOSITION, AND PATTERN FORMING PROCESS
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20200102271A1
公开(公告)日:2020-04-02
A novel onium salt having formula (1) and a resist composition comprising the same as a quencher are provided. When the resist composition is processed by photolithography using high-energy radiation, there is formed a resist pattern which is improved in LWR and CDU. In formula (1), R
1
, R
2
and R
3
each are a C
1
-C
20
monovalent hydrocarbon group which may contain a heteroatom exclusive of fluorine, and Z
+
is a sulfonium, iodonium or ammonium cation.
Patterning process and composition for forming silicon-containing film usable therefor
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP2500775A2
公开(公告)日:2012-09-19
The invention provides a patterning process for forming a negative pattern by lithography, comprising at least the steps of:using a composition for forming silicon-containing film, containing specific silicon-containing compound (A) and an organic solvent (B), to form a silicon-containing film; using a silicon-free resist composition to form a photoresist film on the silicon-containing film; heat-treating the photoresist film, and subsequently exposing the photoresist film to a high energy beam; and using a developer comprising an organic solvent to dissolve an unexposed area of the photoresist film, thereby obtaining a negative pattern. There can be a patterning process, which is optimum as a patterning process of a negative resist to be formed by adopting organic solvent-based development, and a composition for forming silicon-containing film to be used in the process.
Composition for forming resist underlayer film and patterning process using the same
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP2540780A1
公开(公告)日:2013-01-02
The invention provides a composition for forming a silicon-containing resist underlayer film comprising:
(A) a silicon-containing compound obtained by a hydrolysis-condensation reaction of a mixture containing, at least, one or more hydrolysable silicon compound shown by the following general formula (1) and one or more hydrolysable compound shown by the following general formula (2), and (B) a silicon-containing compound obtained by a hydrolysis-condensation reaction of a mixture containing, at least, one or more hydrolysable silicon compound shown by the following general formula (3) and one or more hydrolysable silicon compound shown by the following general formula (4). There can be provided a composition for forming a resist underlayer film applicable not only to a resist pattern obtained in a negative development but also to a resist pattern obtained in a conventional positive development, and a patterning process using this composition.
R1m1R2m2R3m3Si(OR)(4-m1-m2-m3) (1)
U(OR4)m4(OR5)m5 (2)
R6m6R7m7R8m8Si(OR9)(4-m6-m7-m8) (3)
Si(OR10)4 (4)
Silicon-containing resist underlayer film-forming composition and patterning process
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP2599818A1
公开(公告)日:2013-06-05
The present invention is a silicon-containing resist underlayer film-forming composition containing a condensation product and/or a hydrolysis condensation product of a mixture comprising: one or more kinds of a compound (A) selected from the group consisting of an organic boron compound shown by the general formula (1) and a condensation product thereof and one or more kinds of a silicon compound (B) shown by the general formula (2). Thereby, there can be provided a silicon-containing resist underlayer film-forming composition being capable of forming a pattern having a good adhesion, forming a silicon-containing film which can be used as a dry-etching mask between a photoresist film which is the upperlayer film of the silicon-containing film and an organic film which is the underlayer film thereof, and suppressing deformation of the upperlayer resist during the time of dry etching of the silicon-containing film; and a patterning process.
R1m0B(OH)m1(OR)(3-m0-m1) (1)
R10m10R11m11R12m12Si(OR13)(4-m10-m11-m12) (2)