Invention Grant
- Patent Title: Coating and developing system and coating and developing method
- Patent Title (中): 涂层开发系统及涂层开发方法
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Application No.: US11562648Application Date: 2006-11-22
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Publication No.: US08154106B2Publication Date: 2012-04-10
- Inventor: Seiki Ishida , Taro Yamamoto
- Applicant: Seiki Ishida , Taro Yamamoto
- Applicant Address: JP Tokyo-To
- Assignee: Tokyo Electron Limited
- Current Assignee: Tokyo Electron Limited
- Current Assignee Address: JP Tokyo-To
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-344071 20051129
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L23/58

Abstract:
A coating and developing system for forming a resist film on a substrate by coating the substrate with a liquid resist and developing the resist film after the resist film has been processed by immersion exposure that forms a liquid layer on the surface of the substrate is capable of reducing difference in property among resist films formed on substrates.The coating and developing system includes: a cleaning unit for cleaning a surface of a substrate coated with a resist film; a carrying means for taking out the substrate from the cleaning unit and carrying the substrate to an exposure system that carries out an immersion exposure process; and a controller for controlling the carrying means such that a time interval between a wetting time point when the surface of the substrate is wetted with the cleaning liquid by the cleaning unit and a delivery time point when the substrate is delivered to the exposure system is equal to a predetermined set time interval. The set time interval is determined such that the substrate is subjected to the immersion exposure process after contact angle drop rate at which contact angle between the cleaning liquid and a surface of the substrate drops has dropped from an initial level at the wetting time point when the surface of the substrate is wetted with the cleaning liquid to a level far lower than the initial level.
Public/Granted literature
- US20070122737A1 COATING AND DEVELOPING SYSTEM AND COATING AND DEVELOPING METHOD Public/Granted day:2007-05-31
Information query
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