Invention Grant
- Patent Title: Lithography apparatus, and article manufacturing method
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Application No.: US14451727Application Date: 2014-08-05
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Publication No.: US09639008B2Publication Date: 2017-05-02
- Inventor: Yuichiro Morikuni , Yoshinori Ohsaki , Osamu Morimoto
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Rossi, Kimms & McDowell LLP
- Priority: JP2013-163734 20130807
- Main IPC: G03B27/52
- IPC: G03B27/52 ; G03F9/00

Abstract:
A lithography apparatus includes a measuring station that includes a first measuring device configured to measure a height of a substrate holder, and a second measuring device configured to measure a height of a surface of a substrate held by the holder, and a patterning station that includes a third measuring device configured to measure a height of the holder, and patterns the substrate held by the holder based on an output of the second measuring device. The patterning station includes a fourth measuring device configured to measure a height of a surface of a substrate held by the holder. The lithography apparatus includes a controller configured to obtain a correction value for an output obtained from at least one of the first and third measuring devices based on outputs of the second and fourth measuring devices with respect to a substrate held by the holder.
Public/Granted literature
- US20150042969A1 LITHOGRAPHY APPARATUS, AND ARTICLE MANUFACTURING METHOD Public/Granted day:2015-02-12
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