Retaining Ring Having Inner Surfaces with Features
    5.
    发明申请
    Retaining Ring Having Inner Surfaces with Features 审中-公开
    具有内表面的保持环具有特征

    公开(公告)号:US20160346897A1

    公开(公告)日:2016-12-01

    申请号:US14992763

    申请日:2016-01-11

    CPC classification number: B24B37/32 H01L21/68721

    Abstract: Some implementations of a retaining ring has an inner surface having a first portion formed of multiple planar facets and a second portion that adjoins the first portion along a boundary and includes a frustoconical surface that is sloped downwardly from outside in. Some implementations of the retaining ring have a crenellated or serpentine inner surface, and/or an inner surface with alternating region of different surface properties or different tilt angles.

    Abstract translation: 保持环的一些实施方式具有内表面,该内表面具有由多个平面小面形成的第一部分和沿着边界邻接第一部分的第二部分,并且包括从外部向下倾斜的截头圆锥形表面。保持环的一些实施方式 具有锯齿状或蛇形内表面,和/或具有不同表面性质或不同倾斜角的交替区域的内表面。

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