PLASMA SHOWERHEAD ASSEMBLY AND METHOD OF REDUCING DEFECTS

    公开(公告)号:US20250166973A1

    公开(公告)日:2025-05-22

    申请号:US18813855

    申请日:2024-08-23

    Abstract: Plasma showerhead assemblies are disclosed comprising a conductive plate having a plurality of the conductive plate gas openings, a dielectric faceplate having a thickness and a plurality of dielectric faceplate gas openings extending through the dielectric faceplate thickness in fluid communication with the plurality of the conductive plate gas openings. A plurality of tri-lobed o-rings surrounding the conductive plate gas openings and the dielectric faceplate gas openings are configured to form a seal between the dielectric faceplate gas openings and the conductive plate gas openings from atmospheric pressure.

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