Gas Distribution Plate with Enhanced Gas Hole Consistency and Extended Life

    公开(公告)号:US20240290580A1

    公开(公告)日:2024-08-29

    申请号:US18421872

    申请日:2024-01-24

    Inventor: Sam KIM

    CPC classification number: H01J37/3244 H01J37/32082

    Abstract: Embodiments of gas distribution plates for use with process chambers are provided herein. In some embodiments, a gas distribution plate includes: a body comprising a substantially flat plate made from a first material; a plurality of gas distribution holes extending through the body, wherein the plurality of gas distribution holes have a diameter that varies through the body, and wherein a throat of the plurality of gas distribution holes corresponds with a location where the diameter of the gas distribution holes is smallest; and a bushing at least partially disposed in each of the plurality of gas distribution holes, wherein the bushing comprises a bottom plate that includes an orifice with a diameter smaller than the diameter of the throat and sidewalls extending from the bottom plate, and wherein the bushing is made of a second material different from the first material.

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