SHOCKLESS SLIT VALVE CONTROL
    2.
    发明申请
    SHOCKLESS SLIT VALVE CONTROL 审中-公开
    无震动阀门控制

    公开(公告)号:US20120247564A1

    公开(公告)日:2012-10-04

    申请号:US13076398

    申请日:2011-03-30

    申请人: JEFFREY A. KHO

    发明人: JEFFREY A. KHO

    IPC分类号: F16K1/00

    摘要: Embodiments disclosed herein generally relate to methods for sealing a processing chamber with a slit valve door. The slit valve door rises from a position below the substrate transfer port for the processing chamber to a raised position. The slit valve door then expands until an o-ring on the door seals against the sealing surface. The slit valve door rises by flowing clean dry air into a vertical air cylinder coupled to the slit valve door. By controlling the rate of air flow venting from the air cylinder using high and low conductance exhaust lines, the speed with which the slit valve door ascends or descends is controlled to ensure that the door gently moves between positions. Thus, the slit valve door may be prevented from moving into position with too great a force that may jolt or shake the processing chamber and produce undesired particles that may contaminate the process.

    摘要翻译: 本文公开的实施例通常涉及用狭缝阀门密封处理室的方法。 狭缝阀门从处理室的基板输送口下方的位置上升到升高位置。 狭缝阀门然后膨胀直到门上的O形圈密封在密封表面上。 狭缝阀门通过将干净的干燥空气流入连接到狭缝阀门的垂直气缸中而上升。 通过使用高低导电排气线控制从气缸排出气流的速度,控制切口阀门上升或下降的速度,以确保门在位置之间轻轻地移动。 因此,可以防止狭缝阀门以太大的力移动到位置,这可能会使处理室震动或摇动并产生可能污染该过程的不期望的颗粒。