Non-intrusive plasma monitoring system for arc detection and prevention for blanket CVD films
    3.
    发明申请
    Non-intrusive plasma monitoring system for arc detection and prevention for blanket CVD films 审中-公开
    用于毯式CVD膜的电弧检测和防止的非侵入式等离子体监测系统

    公开(公告)号:US20070042131A1

    公开(公告)日:2007-02-22

    申请号:US11208835

    申请日:2005-08-22

    CPC classification number: H01J37/32935

    Abstract: Methods and systems of diagnosing an arcing problem in a semiconductor wafer processing chamber are described. The methods may include coupling a voltage probe to a process-gas distribution faceplate in the processing chamber, and activating an RF power source to generate a plasma between the faceplate and a substrate wafer. The methods may also include measuring the DC bias voltage of the faceplate as a function of time during the activation of the RF power source, where a spike in the measured voltage at the faceplate indicates an arcing event has occurred in the processing chamber. Methods and systems to reduce arcing in a semiconductor wafer processing chamber are also described.

    Abstract translation: 描述了在半导体晶片处理室中诊断电弧问题的方法和系统。 所述方法可以包括将电压探针耦合到处理室中的处理气体分布面板,以及激活RF功率源以在面板和衬底晶片之间产生等离子体。 所述方法还可以包括在激活RF功率源期间测量面板的DC偏置电压作为时间的函数,其中面板中测量的电压的尖峰表示在处理室中发生了电弧事件。 还描述了用于减少半导体晶片处理室中的电弧的方法和系统。

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