发明授权
US06509127B1 Method of electron-beam exposure 失效
电子束曝光方法

  • 专利标题: Method of electron-beam exposure
  • 专利标题(中): 电子束曝光方法
  • 申请号: US09670540
    申请日: 2000-09-27
  • 公开(公告)号: US06509127B1
    公开(公告)日: 2003-01-21
  • 发明人: Hiroshi Yamashita
  • 申请人: Hiroshi Yamashita
  • 优先权: JP11-296886 19991019
  • 主分类号: G03C500
  • IPC分类号: G03C500
Method of electron-beam exposure
摘要:
A scattering-angle limiting type electron-beam exposure method in which a mask having a scattering region is used, and a limiting aperture is set to control the amount of electrons scattered by the mask that pass through the limiting aperture, whereby a scattering contrast is formed from differences in the scattering angles of electrons. By changing the thickness of the scattering region of the mask according to the pattern density, the scattering angles of the scattered electrons are controlled and the amount of the scattered electrons that pass through the limiting aperture is adjusted.
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