Invention Grant
- Patent Title: Carrier plate for use in plasma processing systems
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Application No.: US17113848Application Date: 2020-12-07
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Publication No.: US11670535B2Publication Date: 2023-06-06
- Inventor: Karl Leeser
- Applicant: Lam Research Corporation
- Applicant Address: US CA Fremont
- Assignee: Lam Research Corporation
- Current Assignee: Lam Research Corporation
- Current Assignee Address: US CA Fremont
- Agency: Penilla IP, APC
- The original application number of the division: US15343159 2016.11.03
- Main IPC: H01L21/687
- IPC: H01L21/687 ; H01L21/683 ; C23C16/458 ; C23C16/505 ; C23C16/50

Abstract:
A carrier plate for receiving a wafer includes a pocket defined in a middle section on a top surface of the carrier plate and has a surface diameter. The pocket defines a substrate support region. A retaining feature of the carrier plate is defined at an outer edge of the pocket. A tapered portion of the carrier plate extends from the retaining feature to an outer diameter. The tapered portion is configured to receive a focus ring. A bottom surface of the carrier plate is configured to sit over a pedestal that is used in a process chamber. A plurality of wafer supports is disposed on a top surface of the substrate support region to support the wafer, when received.
Public/Granted literature
- US20210090936A1 CARRIER PLATE FOR USE IN PLASMA PROCESSING SYSTEMS Public/Granted day:2021-03-25
Information query
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