发明公开
- 专利标题: A reflection type mask
- 专利标题(中): 反射型面膜
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申请号: EP88301367.4申请日: 1988-02-18
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公开(公告)号: EP0279670A3公开(公告)日: 1990-03-14
- 发明人: Ikeda, Tsutomu , Watanabe, Yutaka , Suzuki, Masayuki , Hayashida, Masami , Fukuda, Yasuaki , Ogura, Shigetaro , Iizuka, Takashi , Niibe, Masahito
- 申请人: CANON KABUSHIKI KAISHA
- 申请人地址: 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo JP
- 专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人: CANON KABUSHIKI KAISHA
- 当前专利权人地址: 30-2, 3-chome, Shimomaruko, Ohta-ku Tokyo JP
- 代理机构: Beresford, Keith Denis Lewis
- 优先权: JP33523/87 19870218; JP335220/87 19871229; JP335221/87 19871229; JP335222/87 19871229; JP335223/87 19871229; JP12136/87 19880122
- 主分类号: G03F1/00
- IPC分类号: G03F1/00
摘要:
A reflection type mask usable to print a pattern upon a semiconductor wafer by use of soft X-rays or otherwise is disclosed. A reflective surface is formed by a multilayered film which is formed on a substrate by layering different materials having different refractive indices in consideration of Bragg diffraction and Fresnel reflection. A non-reflective portion is formed on the reflecting surface to provide a desired pattern. Alternatively, a pattern comprising a multilayered structure may be formed upon a non-reflective substrate. The mask of the present invention assures pattern printing of high contrast.
公开/授权文献
- EP0279670B1 A reflection type mask 公开/授权日:1997-10-29
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