Methods and apparatus for in-situ cleaning of electrostatic chucks

    公开(公告)号:US11361982B2

    公开(公告)日:2022-06-14

    申请号:US16708908

    申请日:2019-12-10

    摘要: Methods and apparatus for cleaning an electrostatic chuck (ESC) in a semiconductor chamber allow in-situ cleaning of the ESC. An apparatus may include an adapter or cover ring that is electrically isolated from a deposition ring; an annular grounding bracket mounted to and surrounding a pedestal, the annular grounding bracket has at least one horizontal grounding loop on an upper perimeter surface configured to provide electrical contact with the adapter or cover ring and to provide an RF return path to the ESC during plasma generation; and a bracket with a horizontal grounding loop on a first end to make electrical contact with the deposition ring and a vertical grounding loop on a second end to make electrical contact with a lift hoop which is electrically grounded, the bracket is mounted to, but electrically isolated from, the annular grounding bracket.

    Magnetron having enhanced target cooling configuration

    公开(公告)号:US11024490B2

    公开(公告)日:2021-06-01

    申请号:US16213805

    申请日:2018-12-07

    IPC分类号: H01J37/34 H01F7/06

    摘要: Embodiments of magnetron assemblies and processing systems incorporating same are provided herein. In some embodiments, a magnetron assembly includes a rotatable magnet assembly coupled to a bottom of the body and having a plurality of magnets spaced apart from each other; and an encapsulating body disposed in a space between the plurality of magnets. In some embodiments, the magnetron assembly further includes a body extending along a central axis of the magnetron assembly and having a coolant feedthrough channel to provide a coolant to an area beneath the body.