发明申请
- 专利标题: Silicon-containing film-forming composition, silicon-containing film, silicon-containing film-bearing substrate, and patterning method
- 专利标题(中): 含硅成膜组合物,含硅膜,含硅膜基材和图案化方法
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申请号: US11783542申请日: 2007-04-10
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公开(公告)号: US20070238300A1公开(公告)日: 2007-10-11
- 发明人: Tsutomu Ogihara , Takafumi Ueda , Motoaki Iwabuchi
- 申请人: Tsutomu Ogihara , Takafumi Ueda , Motoaki Iwabuchi
- 专利权人: Shin-Etsu Chemical Co., Ltd.
- 当前专利权人: Shin-Etsu Chemical Co., Ltd.
- 优先权: JP2006-108302 20060411
- 主分类号: H01L21/311
- IPC分类号: H01L21/311
摘要:
A silicon-containing film is formed from a heat curable composition comprising (A) a silicon-containing compound obtained by effecting hydrolytic condensation of a hydrolyzable silicon compound in the presence of an acid catalyst, and substantially removing the acid catalyst from the reaction mixture, (B) a hydroxide or organic acid salt of lithium, sodium, potassium, rubidium or cesium, or a sulfonium, iodonium or ammonium compound, (C) an organic acid, and (D) an organic solvent. The silicon-containing film allows an overlying photoresist film to be patterned effectively. The composition is effective in minimizing the occurrence of pattern defects after lithography and is shelf stable.
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