Invention Grant
US08390809B2 Exposure method, exposure apparatus, and method of manufacturing device
有权
曝光方法,曝光装置和制造装置的方法
- Patent Title: Exposure method, exposure apparatus, and method of manufacturing device
- Patent Title (中): 曝光方法,曝光装置和制造装置的方法
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Application No.: US12370827Application Date: 2009-02-13
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Publication No.: US08390809B2Publication Date: 2013-03-05
- Inventor: Nozomu Hayashi
- Applicant: Nozomu Hayashi
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2008-051114 20080229
- Main IPC: G01B11/00
- IPC: G01B11/00

Abstract:
An exposure method comprises: a first detection step of detecting a position of a first mark by a first scope; a second detection step of detecting a position of a second mark by a second scope having a magnification higher than the first scope; a first calculation step of calculating a first correction value based on the detection results obtained in the first and second detection steps; a third detection step of detecting a position of a third mark by the second scope after the substrate is aligned based on the first correction value calculated in the first calculation step; a second calculation step of calculating a second correction value based on the detection results obtained in the second and third detection steps; and an exposure step of exposing the substrate after the substrate is aligned based on the second correction value calculated in the second calculation step.
Public/Granted literature
- US20090219533A1 EXPOSURE METHOD, EXPOSURE APPARATUS, AND METHOD OF MANUFACTURING DEVICE Public/Granted day:2009-09-03
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