Invention Grant
- Patent Title: Exposure apparatus, exposure method, and method for producing device
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Application No.: US15367348Application Date: 2016-12-02
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Publication No.: US09778580B2Publication Date: 2017-10-03
- Inventor: Hiroyuki Nagasaka , Takeshi Okuyama
- Applicant: NIKON CORPORATION , NIKON ENGINEERING CO., LTD.
- Applicant Address: JP Tokyo JP Yokohama-shi
- Assignee: NIKON CORPORATION,NIKON ENGINEERING CO., LTD.
- Current Assignee: NIKON CORPORATION,NIKON ENGINEERING CO., LTD.
- Current Assignee Address: JP Tokyo JP Yokohama-shi
- Agency: Oliff PLC
- Priority: JP2004-172569 20040610; JP2004-245260 20040825; JP2004-330582 20041115
- Main IPC: G03B27/42
- IPC: G03B27/42 ; G03F7/20

Abstract:
Exposure apparatus exposes a substrate by irradiating the substrate with exposure light via a projection optical system and a liquid. The exposure apparatus is provided with a liquid immersion mechanism for supplying the liquid and recovering the liquid. The liquid immersion mechanism has an inclined surface, which is opposite to a surface of the substrate and is inclined with respect to the surface of the substrate, and a liquid recovering port of the liquid immersion mechanism is formed in the inclined surface. A flat portion is provided between the substrate and the projection optical system. A liquid immersion area can be maintained to be small.
Public/Granted literature
- US20170097578A1 EXPOSURE APPARATUS, EXPOSURE METHOD, AND METHOD FOR PRODUCING DEVICE Public/Granted day:2017-04-06
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