EXPOSURE APPARATUS AND METHOD FOR MANUFACTURING ARTICLE

An exposure apparatus comprises a first detector detecting substrate-side marks via an original-side mark and a projection optical system; second detectors arranged in a larger number than the first detector and detecting the substrate-side marks not via the projection optical system; a reference pl...

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Bibliographic Details
Main Authors IZUMI NOZOMU, NAGANO KOUHEI
Format Patent
LanguageEnglish
Published 08.10.2015
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
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Summary:An exposure apparatus comprises a first detector detecting substrate-side marks via an original-side mark and a projection optical system; second detectors arranged in a larger number than the first detector and detecting the substrate-side marks not via the projection optical system; a reference plate having reference marks; and a control unit configured to obtain a first detection result of the plurality of reference marks by the second detectors, obtain first information relating to a first distance between the plurality of second detectors based on the first detection result, obtain a second detection result of the identical substrate-side mark by the first detector and the second detectors, obtain second information relating to a second distance between the first detector and the second detectors based on the second detection result, and control the alignment of the original and the substrate based on the first information and the second information.
Bibliography:Application Number: US201514670490