TUNABLE HARDWARE TO CONTROL RADIAL FLOW DISTRIBUTION IN A PROCESSING CHAMBER

    公开(公告)号:US20240209506A1

    公开(公告)日:2024-06-27

    申请号:US18540311

    申请日:2023-12-14

    CPC classification number: C23C16/45589 C23C16/52

    Abstract: Gas distribution assemblies comprising a backing plate, a first enclosure with an outer diameter smaller than an outer diameter of an opening in the center of the backing plate. A top plate is connected to the top of the first enclosure. A compressible seal surrounds the first enclosure connecting the top plate to the backing plate outside the opening in the backing plate. An actuator is connected to the backing plate and the top plate to move the top plate closer to and further from the backing plate. A plunger extends through the opening in the center of the first enclosure. Methods of controlling a flow profile are also disclosed.

    SELF-ADJUSTABLE VARIABLE ORIFICE CHECK VALVE FOR BACK PRESSURE REDUCTION

    公开(公告)号:US20230407981A1

    公开(公告)日:2023-12-21

    申请号:US18212238

    申请日:2023-06-21

    CPC classification number: F16K15/028

    Abstract: Variable orifice check valves comprising a flange with a guide pin, spring and movable plate are described. The flange has a body with at least one guide pin opening in the top surface. A guide pin is positioned within the at least one guide pin opening and a spring is positioned around the guide pin. The movable plate has an opening and slides along the guide pins with the spring between the top surface of the flange body and the bottom surface of the movable plate.

    Thermally uniform deposition station

    公开(公告)号:US11584993B2

    公开(公告)日:2023-02-21

    申请号:US17074035

    申请日:2020-10-19

    Abstract: Gas distribution assemblies and methods for providing a flow of gases to a process station are described. The gas distribution assemblies comprise a pumping liner with a showerhead and a gas funnel positioned therein. The pumping liner has an inner wall that slants at a first angle relative to a central axis of the gas distribution assembly so that the inner wall adjacent the bottom wall of the pumping liner is closer to the central axis than the inner wall adjacent the top wall. The gas funnel and pumping liner form a plenum between the outer wall of the gas funnel, a cavity in the bottom wall of the gas funnel and the inner wall of the pumping liner.

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