Invention Grant
- Patent Title: Method for evaluating lithography apparatus and method for controlling lithography apparatus
- Patent Title (中): 评估光刻设备的方法和控制光刻设备的方法
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Application No.: US12405710Application Date: 2009-03-17
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Publication No.: US07883824B2Publication Date: 2011-02-08
- Inventor: Masafumi Asano , Kenji Yoshida , Masahiro Kanno
- Applicant: Masafumi Asano , Kenji Yoshida , Masahiro Kanno
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- Priority: JP2008-083423 20080327
- Main IPC: G03C5/00
- IPC: G03C5/00 ; G03F9/00

Abstract:
An evaluation method for lithography apparatus including a coating unit, an exposure unit, a heating unit and a development unit, the evaluation method including forming an evaluation resist pattern by using the lithography apparatus, the evaluation resist pattern including first and second evaluation patterns, the first and second evaluation patterns having different peripheral environments, measuring dimensions of the first and second evaluation patterns to obtain a dimensional difference between the first and second resist evaluation patterns, estimating an exposure dose of a resist when the resist is exposed by the exposure unit, the estimating the exposure dose being performed based on the dimensional difference between the first and second resist evaluation patterns, and estimating an effective heating temperature of the resist when the resist is heated by the heating unit, the estimating the effective heating temperature being performed based on the estimated exposure dose and the dimensional difference.
Public/Granted literature
- US20090246654A1 METHOD FOR EVALUATING LITHOGRAPHY APPARATUS AND METHOD FOR CONTROLLING LITHOGRAPHY APPARATUS Public/Granted day:2009-10-01
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