发明授权
- 专利标题: Process for manufacturing a photomask
- 专利标题(中): 光掩模制造工艺
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申请号: US75297申请日: 1987-07-17
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公开(公告)号: US4876164A公开(公告)日: 1989-10-24
- 发明人: Yaichiro Watakabe , Tatsuo Okamoto , Shuichi Matsuda
- 申请人: Yaichiro Watakabe , Tatsuo Okamoto , Shuichi Matsuda
- 申请人地址: JPX Tokyo
- 专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人: Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX60-16203 19850128
- 主分类号: G03F1/00
- IPC分类号: G03F1/00 ; G03F1/54 ; H01L21/027
摘要:
A photomask manufacturing process including a step of forming metal silicide film on a transparent silica glass substrate. A resist is applied onto the metal silicide film and then a patterning mask is provided by light or electron beam, followed by developing step. Exposed portions of the metal silicide film is etched away using a dry etching process.
公开/授权文献
- US6071621A Metallized film and decorative articles made therewith 公开/授权日:2000-06-06
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