Apparatus for reducing entrapment of foreign matter along a moveable shaft of a substrate support
    6.
    发明授权
    Apparatus for reducing entrapment of foreign matter along a moveable shaft of a substrate support 失效
    用于减少沿着衬底支撑件的可移动轴夹带异物的装置

    公开(公告)号:US07582167B2

    公开(公告)日:2009-09-01

    申请号:US11866505

    申请日:2007-10-03

    IPC分类号: C23C16/00 C23F1/00 H01L21/306

    CPC分类号: H01L21/67126 C23C16/4401

    摘要: In one embodiment, the invention is a guard ring for reducing particle entrapment along a moveable shaft of a substrate support. In one embodiment, the guard ring comprises a substantially annular guard ring positioned within a step formed in a sleeve that circumscribes the shaft. The guard ring is positioned to substantially seal a gap separating the shaft from the sleeve, so that the amount of particles and foreign matter that travel within or become trapped in the gap is substantially reduced. In another embodiment, a guard ring comprises a base portion having an inner perimeter and an outer perimeter, a first flange coupled to the inner perimeter, a second flange coupled to the outer perimeter, and a continuous channel separating the first flange from the second flange. The first flange is adapted to function as a spring that accommodates displacement of the shaft.

    摘要翻译: 在一个实施例中,本发明是用于减少沿基板支撑件的可移动轴的颗粒捕获的保护环。 在一个实施例中,保护环包括大致环形的保护环,其定位在形成在套筒内的步骤中,该套筒环绕轴。 保护环被定位成基本上密封将轴与套筒分开的间隙,使得在间隙内行进或被捕获在间隙中的颗粒和异物的量显着减少。 在另一个实施例中,保护环包括具有内周边和外周边的基部,连接到内周边的第一凸缘,联接到外周边的第二凸缘和将第一凸缘与第二凸缘分开的连续通道 。 第一凸缘适于用作容纳轴的位移的弹簧。

    Apparatus for reducing entrapment of foreign matter along a moveable shaft of a substrate support
    7.
    发明授权
    Apparatus for reducing entrapment of foreign matter along a moveable shaft of a substrate support 失效
    用于减少沿着衬底支撑件的可移动轴夹带异物的装置

    公开(公告)号:US07279049B2

    公开(公告)日:2007-10-09

    申请号:US10775769

    申请日:2004-02-05

    IPC分类号: C23C16/00 C23F1/00 H01L21/306

    CPC分类号: H01L21/67126 C23C16/4401

    摘要: In one embodiment, the invention is a guard ring for reducing particle entrapment along a moveable shaft of a substrate support. In one embodiment, the guard ring comprises a substantially annular guard ring positioned within a step formed in a sleeve that circumscribes the shaft. The guard ring is positioned to substantially seal a gap separating the shaft from the sleeve, so that the amount of particles and foreign matter that travel within or become trapped in the gap is substantially reduced. In another embodiment, a guard ring comprises a base portion having an inner perimeter and an outer perimeter, a first flange coupled to the inner perimeter, a second flange coupled to the outer perimeter, and a continuous channel separating the first flange from the second flange. The first flange is adapted to function as a spring that accommodates displacement of the shaft.

    摘要翻译: 在一个实施例中,本发明是用于减少沿基板支撑件的可移动轴的颗粒捕获的保护环。 在一个实施例中,保护环包括大致环形的保护环,其定位在形成在套筒内的步骤中,该套筒环绕轴。 保护环被定位成基本上密封将轴与套筒分开的间隙,使得在间隙内行进或被捕获在间隙中的颗粒和异物的量显着减少。 在另一个实施例中,保护环包括具有内周边和外周边的基部,连接到内周边的第一凸缘,联接到外周边的第二凸缘和将第一凸缘与第二凸缘分开的连续通道 。 第一凸缘适于用作容纳轴的位移的弹簧。