Method of polishing a new or a refurbished electrostatic chuck

    公开(公告)号:US11260498B2

    公开(公告)日:2022-03-01

    申请号:US14341419

    申请日:2014-07-25

    Abstract: Embodiments of the present invention provide a polishing ring assembly suitable for polishing an electrostatic chuck and method of using the same. In one embodiment, the polishing ring assembly has a retaining ring assembly and an electrostatic chuck fixture. The retaining ring assembly includes an inner diameter and a top surface, a plurality of outer drive rings wherein the plurality of outer drive rings are placed on the top surface of the ceramic retaining ring. The electrostatic chuck fixture includes an electrostatic chuck drive plate adjacent to the inner diameter of in the ceramic retaining ring. The electrostatic chuck drive plate has a lock to secure retaining ring assembly with the electrostatic chuck fixture without transferring the weight from one assembly over to the other through the locking mechanism.

    Reinforcement ring for carrier head
    8.
    发明授权
    Reinforcement ring for carrier head 有权
    承载头加强环

    公开(公告)号:US09381613B2

    公开(公告)日:2016-07-05

    申请号:US14163914

    申请日:2014-01-24

    CPC classification number: B24B37/30 B24B41/061

    Abstract: A reinforcement ring is for placement in a carrier head to abut an inner surface of a perimeter portion of a flexible membrane. The reinforcement ring includes a substantially vertical cylindrical portion, a first flange projecting inwardly from the bottom of the cylindrical portion, and a second flange projecting outwardly from a bottom of the cylindrical portion. The second flange projects downwardly at a non-zero angle from vertical.

    Abstract translation: 加强环用于放置在承载头中以邻接柔性膜的周边部分的内表面。 加强环包括基本上垂直的圆柱形部分,从圆柱形部分的底部向内突出的第一凸缘和从圆柱形部分的底部向外突出的第二凸缘。 第二凸缘与垂直方向成非零角度向下突出。

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