发明授权
US08318288B2 Optical element, lithographic apparatus including such optical element and device manufacturing method, and device manufactured thereby
失效
光学元件,包括这种光学元件的光刻设备和器件制造方法,以及由此制造的器件
- 专利标题: Optical element, lithographic apparatus including such optical element and device manufacturing method, and device manufactured thereby
- 专利标题(中): 光学元件,包括这种光学元件的光刻设备和器件制造方法,以及由此制造的器件
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申请号: US10981736申请日: 2004-11-05
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公开(公告)号: US08318288B2公开(公告)日: 2012-11-27
- 发明人: Levinus Pieter Bakker
- 申请人: Levinus Pieter Bakker
- 申请人地址: NL Veldhoven
- 专利权人: ASML Netherlands B.V.
- 当前专利权人: ASML Netherlands B.V.
- 当前专利权人地址: NL Veldhoven
- 代理机构: Pillsbury Winthrop Shaw Pittman LLP
- 优先权: EP03078495 20031106
- 主分类号: G02B17/00
- IPC分类号: G02B17/00
摘要:
An optical element includes a top layer which is transmissive for EUV radiation with wavelength λ in the range of 5-20 nm, and a structure of the top layer is a structure having an rms roughness value equal to or larger than λ/10 for spatial periods equal to or smaller than λ/2. The structure promotes transmission through the top layer to the optical element.
公开/授权文献
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IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B17/00 | 有或无折射元件的具有反射面的系统 |