Invention Grant
- Patent Title: Liquid jet and recovery system for immersion lithography
- Patent Title (中): 用于浸没光刻的液体喷射和回收系统
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Application No.: US14283827Application Date: 2014-05-21
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Publication No.: US09304409B2Publication Date: 2016-04-05
- Inventor: W. Thomas Novak , Andrew J. Hazelton , Douglas C. Watson
- Applicant: NIKON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIKON CORPORATION
- Current Assignee: NIKON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Main IPC: G03B27/52
- IPC: G03B27/52 ; G03F7/20

Abstract:
A liquid immersion lithography apparatus includes a projection system, an opening from which liquid is supplied to a space under the projection system, the opening being connectable to a liquid source via a flow passage to supply the liquid to the space and the opening being connectable to a vacuum source via the flow passage, and a holding member by which a substrate is held, the holding member being movable below the projection system and the opening. The substrate held by the holding member is exposed through the liquid that is supplied from the opening and that covers only a portion of an upper surface of the substrate.
Public/Granted literature
- US20140253888A1 LIQUID JET AND RECOVERY SYSTEM FOR IMMERSION LITHOGRAPHY Public/Granted day:2014-09-11
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