发明申请
- 专利标题: REDUCING CONTAMINATION IN IMMERSION LITHOGRAPHY
- 专利标题(中): 减少沉积岩石中的污染
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申请号: US12182278申请日: 2008-07-30
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公开(公告)号: US20080284993A1公开(公告)日: 2008-11-20
- 发明人: Dmitriy Shneyder , Raschid J. Bezama , Dario L. Goldfarb , Kafal Lai
- 申请人: Dmitriy Shneyder , Raschid J. Bezama , Dario L. Goldfarb , Kafal Lai
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: G03B27/52
- IPC分类号: G03B27/52
摘要:
A wafer chuck assembly includes a first chuck section configured to hold a semiconductor wafer on a support surface thereof, and a second chuck section removably attached to the first chuck section. The first chuck section has a gap therein, the gap located adjacent an outer edge of the wafer, and the gap containing a volume of immersion lithography fluid therein. A fluid circulation path is configured within the first chuck section so as to facilitate the radial outward movement of the immersion lithography fluid in the gap, thereby maintaining a meniscus of the immersion lithography fluid at a selected height with respect to a top surface of the semiconductor wafer.
公开/授权文献
- US07782445B2 Reducing contamination in immersion lithography 公开/授权日:2010-08-24
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