Invention Grant
- Patent Title: Exposure apparatus
- Patent Title (中): 曝光装置
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Application No.: US12368914Application Date: 2009-02-10
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Publication No.: US07956985B2Publication Date: 2011-06-07
- Inventor: Riichirou Hanawa
- Applicant: Riichirou Hanawa
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2008-035155 20080215
- Main IPC: G03B27/52
- IPC: G03B27/52 ; G03B27/42

Abstract:
An exposure apparatus includes a driver used for one of height, inclination, curvature-of-field, magnification, and rotation corrections, and a controller configured to control a substrate stage so that it can change an exposure area from a first shot to a third shot even if a moving distance of the substrate stage from the first shot to the second shot is smaller than that from the first shot to the third shot, if a time period necessary for the driver to transfer from a correction state for the first shot to a correction state for the second shot is longer than a time period necessary for the substrate stage to move the exposure area from the first shot to the second shot, and a time period necessary for the driver to transfer from a correction state for the first shot to a correction state for the third shot.
Public/Granted literature
- US20090208884A1 EXPOSURE APPARATUS Public/Granted day:2009-08-20
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