Invention Grant
- Patent Title: Lift thimble system, reaction chamber, and semiconductor processing equipment
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Application No.: US17263078Application Date: 2019-07-30
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Publication No.: US11694880B2Publication Date: 2023-07-04
- Inventor: Xingfei Mao
- Applicant: BEIJING NAURA MICROELECTRONICS EQUIPMENT CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BEIJING NAURA MICROELECTRONICS EQUIPMENT CO., LTD
- Current Assignee: BEIJING NAURA MICROELECTRONICS EQUIPMENT CO., LTD
- Current Assignee Address: CN Beijing
- Agency: Anova Law Group, PLLC
- Priority: CN 1810911227.X 2018.08.10
- International Application: PCT/CN2019/098370 2019.07.30
- International Announcement: WO2020/029833A 2020.02.13
- Date entered country: 2021-01-25
- Main IPC: H01J37/32
- IPC: H01J37/32 ; H01L21/683 ; H01L21/687

Abstract:
The present disclosure discloses a lift thimble system, a reaction chamber, and semiconductor processing equipment, including a wafer thimble device configured to lift a wafer from a base by rising or drop the wafer onto the base by descending, and a focus ring thimble device configured to lift a focus ring from an initial position of the focus ring by rising to cause an inner ring area of an upper surface of the focus ring to lift an edge area of the wafer, or cause the focus ring to return to the initial position by descending. The technical solutions of the system, the reaction chamber, and the equipment of the present disclosure improve maintenance efficiency of an abnormal situation, and double the service lifetime of the focus ring. Moreover, the technical solutions may further realize replacement of the focus ring without damaging reaction chamber vacuum to improve efficiency.
Public/Granted literature
- US20210313157A1 LIFT THIMBLE SYSTEM, REACTION CHAMBER, AND SEMICONDUCTOR PROCESSING EQUIPMENT Public/Granted day:2021-10-07
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