Invention Grant
- Patent Title: Exposure apparatus and device manufacturing method
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Application No.: US15724777Application Date: 2017-10-04
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Publication No.: US10007188B2Publication Date: 2018-06-26
- Inventor: Akimitsu Ebihara
- Applicant: NIKON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIKON CORPORATION
- Current Assignee: NIKON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2003-174259 20030619
- Main IPC: G03B27/52
- IPC: G03B27/52 ; G03F7/20 ; B82Y10/00

Abstract:
An exposure apparatus exposes a substrate with illumination light via a liquid. A liquid immersion member of the exposure apparatus has a lower surface, a plurality of collection ports, and a plurality of supply ports. The lower surface has an opening through which illumination light passes. The collection ports are arranged at the lower surface to surround the opening, and the supply ports are arranged at the lower surface and between the opening and the collection ports to surround the opening, such that the liquid is supplied via the supply ports onto the substrate while the substrate is arranged opposite to a plane-convex lens of a projection optical system and such that the liquid is collected via the collection ports from the substrate.
Public/Granted literature
- US20180039185A1 EXPOSURE APPARATUS AND DEVICE MANUFACTURING METHOD Public/Granted day:2018-02-08
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