Invention Grant
- Patent Title: System for evacuating a chamber
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Application No.: US16492095Application Date: 2018-03-02
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Publication No.: US10943761B2Publication Date: 2021-03-09
- Inventor: Fangfu Li
- Applicant: ASML Netherlands B.V.
- Applicant Address: NL Veldhoven
- Assignee: ASML Netherlands B.V.
- Current Assignee: ASML Netherlands B.V.
- Current Assignee Address: NL Veldhoven
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- International Application: PCT/EP2018/055210 WO 20180302
- International Announcement: WO2018/162358 WO 20180913
- Main IPC: H01J37/18
- IPC: H01J37/18 ; F04D19/04 ; F04D25/16

Abstract:
Systems and methods are provided for evacuating a chamber 101. The evacuation system comprises a cooler 320 coupled with the chamber and a controller 350. The controller is configured to determine whether a property of the cooler or the chamber satisfies one or more conditions. Based on the determination that the property satisfies the one or more conditions, the controller is configured to isolate the cooler from the chamber or control the temperature of the cooler to increase at one or more rates. The controller is further configured to control one or more pumps 330,340 to pump the chamber to a base pressure value.
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