Invention Grant
- Patent Title: Substrate processing method and substrate processing apparatus
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Application No.: US15841999Application Date: 2017-12-14
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Publication No.: US10900127B2Publication Date: 2021-01-26
- Inventor: Masayuki Otsuji
- Applicant: SCREEN Holdings Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: SCREEN Holdings Co., Ltd.
- Current Assignee: SCREEN Holdings Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Ostrolenk Faber LLP
- Priority: JP2017-003275 20170112
- Main IPC: B05D3/12
- IPC: B05D3/12 ; C23F1/02 ; H01L21/02 ; H01L21/67 ; H01L21/687 ; B05D1/00

Abstract:
In a substrate processing method, a liquid film 30 of a processing liquid is formed on an upper surface of a substrate W, a gas which comprising vapor of a low surface tension liquid is sprayed to the liquid film 30 to form a liquid film-removed region 31. The liquid film-removed region 31 is expanded. A coolant 29 is supplied to a lower surface of the substrate W, while the liquid film 30 is cooled to a temperature lower than the boiling point of the low surface tension liquid, a heated gas is sprayed to selectively remove the coolant 29, and a range 33 in which the coolant 29 is removed is heated by a heated gas, by which the liquid film-removed region 31 on the upper surface of the substrate W is selectively heated to a temperature not less than the boiling point of the low surface tension liquid, and also a range which heats the liquid film-removed region 31 is expanded in synchronization with expansion of the liquid film-removed region 31.
Public/Granted literature
- US20180195178A1 SUBSTRATE PROCESSING METHOD AND SUBSTRATE PROCESSING APPARATUS Public/Granted day:2018-07-12
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