Invention Grant
- Patent Title: Charged particle beam drawing apparatus and method of manufacturing article
- Patent Title (中): 带电粒子束拉制装置及其制造方法
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Application No.: US13546079Application Date: 2012-07-11
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Publication No.: US08766215B2Publication Date: 2014-07-01
- Inventor: Shigeo Koya
- Applicant: Shigeo Koya
- Applicant Address: JP
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP
- Agency: Rossi, Kimms & McDowell, LLP
- Priority: JP2011-158452 20110719; JP2012-138194 20120619
- Main IPC: G21K5/08
- IPC: G21K5/08 ; G21K5/10 ; H01J37/20

Abstract:
A charged particle beam drawing apparatus includes: a charged particle optical system; a substrate stage; an interferometer configured to measure a position of the stage in the direction of the optical axis of the charged particle optical system; a measuring device configured to measure a characteristic of the charged particle beam; and a controller configured to correct the measurement, obtained by the interferometer, using correction information. The controller is configured to cause first measurement as measurement by the interferometer and second measurement as measurement by the measuring device to be performed in parallel, and to obtain the correction information based on the first measurement and the second measurement obtained with respect to each of the plurality of positions.
Public/Granted literature
- US20130020502A1 CHARGED PARTICLE BEAM DRAWING APPARATUS AND METHOD OF MANUFACTURING ARTICLE Public/Granted day:2013-01-24
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