MULTIZONE COATED VACUUM CHUCK FOR IR MEASUREMENT

    公开(公告)号:US20250167036A1

    公开(公告)日:2025-05-22

    申请号:US18516849

    申请日:2023-11-21

    Inventor: Sanjay BHAT

    Abstract: Embodiments of chuck plates for a substrate support are provided herein. In some embodiments, the chuck plate includes an upper surface defining a support surface for a substrate and having a coating comprising a material with less reflectivity than a base material of the chuck plate, wherein the upper surface includes a plurality of vacuum grooves, wherein the plurality of vacuum grooves are arranged in a plurality of zones that are fluidly independent from each other along the upper surface and fluidly coupled to a common vacuum port disposed at a lower surface of the chuck plate.

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