CAPACITIVE SENSOR HOUSING FOR CHAMBER CONDITION MONITORING

    公开(公告)号:US20220341867A1

    公开(公告)日:2022-10-27

    申请号:US17861034

    申请日:2022-07-08

    Abstract: Embodiments disclosed herein include a sensor assembly. In an embodiment, the sensor assembly comprises a sensor module and a housing assembly. In an embodiment, the sensor module comprises a substrate, a capacitor with a first electrode and a second electrode on the substrate, and a capacitive-to-digital converter (CDC) electrically coupled to the first electrode and the second electrode. In an embodiment, the housing assembly is attached to the sensor module and comprises a shaft, wherein the shaft is hollow, and a cap over a first end of the shaft, wherein the cap has an opening to expose the capacitor.

    DIFFERENTIAL CAPACITIVE SENSORS FOR IN-SITU FILM THICKNESS AND DIELECTRIC CONSTANT MEASUREMENT

    公开(公告)号:US20210033557A1

    公开(公告)日:2021-02-04

    申请号:US16526268

    申请日:2019-07-30

    Abstract: Methods and apparatus for a processing chamber are provided herein. The apparatus includes, for example, an inner volume defined in the processing chamber; a first sensor assembly coupled to a surface located in the inner volume of the processing chamber and including a first electrode configuration configured to measure an electrical characteristic associated with a film deposited within the inner volume of the processing chamber; and a second sensor assembly coupled to the surface located in the inner volume of the processing chamber in relative proximity to the first sensor assembly and including a second electrode configuration, different from the first electrode configuration, configured to measure the same electrical characteristic as the first electrode configuration.

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