Detecting plasma arcs by monitoring RF reflected power in a plasma processing chamber
    6.
    发明授权
    Detecting plasma arcs by monitoring RF reflected power in a plasma processing chamber 有权
    通过监测等离子体处理室中的RF反射功率来检测等离子弧

    公开(公告)号:US09386680B2

    公开(公告)日:2016-07-05

    申请号:US14496093

    申请日:2014-09-25

    IPC分类号: H01L21/306 H05H1/46

    摘要: Embodiments of the present disclosure generally relate to methods for detecting unstable plasma in a substrate processing chamber. In one embodiment, the method includes providing a forward power from a power source to the substrate processing chamber through a detection device, splitting the forward power passing through the detection device at a predetermined ratio to obtain a first value of the power to the substrate processing chamber, measuring a reflected power from the substrate processing chamber to obtain a second value of the power from the substrate processing chamber, and directing the power source to turn off the forward power if the second value of the power is different than the first value of the power.

    摘要翻译: 本公开的实施例一般涉及用于检测衬底处理室中的不稳定等离子体的方法。 在一个实施例中,该方法包括通过检测装置从电源向基板处理室提供正向功率,以预定比率分离通过检测装置的正向功率,以获得基板处理功率的第一值 测量来自基板处理室的反射功率,以获得来自基板处理室的功率的第二值,并且如果功率的第二值不同于第一值,则引导电源关闭正向功率 动力。

    METHOD AND APPARATUS FOR TUNING ELECTRODE IMPEDANCE FOR HIGH FREQUENCY RADIO FREQUENCY AND TERMINATING LOW FREQUENCY RADIO FREQUENCY TO GROUND
    7.
    发明申请
    METHOD AND APPARATUS FOR TUNING ELECTRODE IMPEDANCE FOR HIGH FREQUENCY RADIO FREQUENCY AND TERMINATING LOW FREQUENCY RADIO FREQUENCY TO GROUND 审中-公开
    用于调谐高频无线电频率和终止低频无线电频率接地的方法和装置

    公开(公告)号:US20140290576A1

    公开(公告)日:2014-10-02

    申请号:US14215676

    申请日:2014-03-17

    IPC分类号: H01J37/32

    CPC分类号: H01J37/32183 H01J37/32091

    摘要: Embodiments of the present invention relate to apparatus for improving uniformity and film stress of films deposited during plasma process of a substrate. According to embodiments, the apparatus includes a tuning electrode and/or a tuning ring electrically coupled to a variable capacitor for tuning high frequency RF impedance of the electrode and a low frequency RF termination to ground. The plasma profile and resulting film thickness can be controlled by adjusting the capacitance of the variable capacitor and the resulting impedance of the tuning electrode. The film stress of the film deposited on the substrate can be controlled, i.e., increased, by terminating the low frequency RF during processing.

    摘要翻译: 本发明的实施例涉及用于改善在衬底的等离子体工艺期间沉积的膜的均匀性和膜应力的装置。 根据实施例,该装置包括电耦合到可变电容器的调谐电极和/或调谐环,用于调谐电极的高频RF阻抗和低频RF终端对地。 可以通过调节可变电容器的电容和调谐电极的所得阻抗来控制等离子体轮廓和所得膜厚度。 通过在处理期间终止低频RF,可以控制沉积在衬底上的膜的膜应力,即增加。

    High impedance RF filter for heater with impedance tuning device

    公开(公告)号:US10450653B2

    公开(公告)日:2019-10-22

    申请号:US16188678

    申请日:2018-11-13

    摘要: Embodiments provide a plasma processing apparatus, substrate support assembly, and method of controlling a plasma process. The apparatus and substrate support assembly include a substrate support pedestal, a tuning assembly that includes a tuning electrode that is disposed in the pedestal and electrically coupled to a radio frequency (RF) tuner, and a heating assembly that includes one or more heating elements disposed within the pedestal for controlling a temperature profile of the substrate, where at least one of the heating elements is electrically coupled to an RF filter circuit that includes a first inductor configured in parallel with a formed capacitance of the first inductor to ground. The high impedance of the RF filters can be achieved by tuning the resonance of the RF filter circuit, which results in less RF leakage and better substrate processing results.