发明授权
- 专利标题: Alignment apparatus and exposure apparatus
- 专利标题(中): 对准装置和曝光装置
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申请号: US10847455申请日: 2004-05-18
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公开(公告)号: US07053982B2公开(公告)日: 2006-05-30
- 发明人: Keiji Emoto
- 申请人: Keiji Emoto
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Fitzpatrick, Cella, Harper & Scinto
- 优先权: JP2003-158598 20030603
- 主分类号: G03B27/42
- IPC分类号: G03B27/42
摘要:
An alignment apparatus includes a first support member having a reference surface which movably supports an object, and a driving unit which moves the object in at least one direction on the reference surface and aligns the object at a predetermined position. The driving unit includes (i) a first driving unit which moves the object in a first direction, and (ii) a second driving unit which moves the object in a second direction, substantially perpendicular to the first direction. The alignment apparatus further includes a second support member which is provided separately from the first support member and supports a heating unit of the driving unit, through a bearing. The first support member supports the object so as to allow the object to move in the first and second directions, and the second support member supports the first and second driving units. The first driving unit has a first movable element which moves the object in the first direction and a first stator which applies a driving force to the first movable element. The second driving unit has a second movable element which moves the object in the second direction and a second stator which applies a driving force to the second movable element. The bearing has a hydrostatic bearing, and the first and second stators are supported on the second support member through the hydrostatic bearing.
公开/授权文献
- US20040246455A1 Alignment apparatus and exposure apparatus 公开/授权日:2004-12-09
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