Invention Grant
- Patent Title: Exposure apparatus and device fabrication method
- Patent Title (中): 曝光装置和装置制造方法
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Application No.: US13495300Application Date: 2012-06-13
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Publication No.: US08531649B2Publication Date: 2013-09-10
- Inventor: Shinichi Hirano , Kohei Yamada
- Applicant: Shinichi Hirano , Kohei Yamada
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2011-135694 20110617
- Main IPC: G03B27/72
- IPC: G03B27/72 ; G03B27/54

Abstract:
The present invention provides an exposure apparatus including a light shielding plate which is placed on a plane conjugate to an object plane of a projection optical system in an illumination optical system, includes, on an edge thereof, an arc that overlaps a circular boundary line inside an outer periphery of a substrate, and defines a region on the substrate, to which a pattern is to be transferred, a detection unit which detects a shift amount between the center position of the substrate and the center position of an array of a plurality of shot regions on a layer, and a control unit which positions the plate at a position, at which the plate shields light incident on an outer peripheral region shifted inward from the outer periphery of the substrate by a predetermined width, based on the shift amount.
Public/Granted literature
- US20120320360A1 EXPOSURE APPARATUS AND DEVICE FABRICATION METHOD Public/Granted day:2012-12-20
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