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公开(公告)号:US20050213060A1
公开(公告)日:2005-09-29
申请号:US10807408
申请日:2004-03-24
IPC分类号: H01L21/027 , G02B5/32 , G02B27/00 , G03F7/20
CPC分类号: G03F7/70933 , G02B27/0043 , G03F7/70825 , G03F7/70983
摘要: A lithographic optical system is presented herein. The optical system comprises a housing with two optically transparent windows and at least one moveable lens therein, as well as at least one other optical element outside said housing. By providing at least one optical element outside the housing, possible deleterious influences thereof on the optical quality of the moveable lens may be diminished. The housing with the moveable lens may be purged, and may be provided with a linear motor and a gas bearing for contactless moving of the lens.
摘要翻译: 本文介绍了光刻光学系统。 光学系统包括具有两个光学透明窗口的壳体和其中的至少一个可移动透镜,以及在所述壳体外部的至少一个其它光学元件。 通过在壳体外部设置至少一个光学元件,可能会对可移动透镜的光学质量产生有害的影响。 具有可移动透镜的壳体可以被清洗,并且可以设置有线性电动机和用于透镜的无接触移动的气体轴承。