Invention Grant
- Patent Title: Substrate holding apparatus, exposure apparatus, and device fabricating method
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Application No.: US15601202Application Date: 2017-05-22
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Publication No.: US09964860B2Publication Date: 2018-05-08
- Inventor: Makoto Shibuta
- Applicant: NIKON CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIKON CORPORATION
- Current Assignee: NIKON CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2004-363478 20041215
- Main IPC: G03B27/52
- IPC: G03B27/52 ; G03B27/58 ; G03F7/20 ; H01L21/687 ; H01L21/683

Abstract:
An exposure apparatus exposes a substrate to light passing through liquid, and includes a stage that holds the substrate. The stage includes a substrate holder including a support member that supports a rear surface of the substrate and a first circumferential wall surrounding the support member. A second circumferential wall surrounds the substrate holder and forms a first groove between the second circumferential wall and the substrate holder, and a second groove on an outer side thereof. A plate member surrounds the substrate on the support member, and a recovery passage recovers liquid flowing from a liquid supply system to a gap between the plate member and the substrate. The second circumferential wall is under the gap so that part of an upper surface of the second circumferential wall faces the substrate rear surface and another part of the upper surface faces a rear surface of the plate member.
Public/Granted literature
- US20170255109A1 SUBSTRATE HOLDING APPARATUS, EXPOSURE APPARATUS, AND DEVICE FABRICATING METHOD Public/Granted day:2017-09-07
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