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    PLASMA REACTOR WITH A MULTIPLE ZONE THERMAL CONTROL FEED FORWARD CONTROL APPARATUS
    5.
    发明申请
    PLASMA REACTOR WITH A MULTIPLE ZONE THERMAL CONTROL FEED FORWARD CONTROL APPARATUS 有权
    具有多区域热控制进料控制装置的等离子体反应器

    公开(公告)号：US20100314046A1

    公开(公告)日：2010-12-16

    申请号：US12855670

    申请日：2010-08-12

    申请人： Paul Lukas Brillhart ,  Richard Fovell ,  Hamid Tavassoli ,  Douglas A. Buchberger, JR. ,  Douglas H. Burns ,  Kallol Bera ,  Daniel J. Hoffman

    发明人： Paul Lukas Brillhart ,  Richard Fovell ,  Hamid Tavassoli ,  Douglas A. Buchberger, JR. ,  Douglas H. Burns ,  Kallol Bera ,  Daniel J. Hoffman

    IPC分类号： H01L21/3065

    CPC分类号： H01L21/67248 ,  F25B49/02 ,  F25B2400/0401 ,  F25B2400/0403 ,  F25B2400/0411 ,  F25B2700/21174 ,  F25B2700/21175 ,  H01J37/32091 ,  H01J37/32183 ,  H01J37/32724 ,  H01J2237/2001 ,  H01L21/67069 ,  H01L21/67109 ,  H01L21/6831 ,  H05H2001/4682

    摘要： A plasma reactor having a reactor chamber and an electrostatic chuck having a surface for holding a workpiece inside the chamber includes inner and outer zone backside gas pressure sources coupled to the electrostatic chuck for applying a thermally conductive gas under respective pressures to respective inner and outer zones of a workpiece-surface interface formed whenever a workpiece is held on the surface, and inner and outer evaporators inside respective inner and outer zones of the electrostatic chuck and a refrigeration loop having respective inner and cuter expansion valves for controlling flow of coolant through the inner and outer evaporators respectively. The reactor further includes inner and outer zone temperature sensors in inner and outer zones of the electrostatic chuck and a thermal model capable of simulating heat transfer through the inner and outer zones, respectively, between the evaporator and the surface based upon measurements from the inner and outer temperature sensors, respectively. Inner and outer zone agile control processors coupled to the thermal model govern the inner and outer zone backside gas pressure sources, respectively, in response to predictions from the model of changes in the respective pressures that would bring the temperatures measured by the inner and outer zone sensors, respectively, closer to a desired temperature.

    摘要翻译： 具有反应室和具有用于将工件保持在室内的表面的静电卡盘的等离子体反应器包括耦合到静电卡盘的内部和外部区域背侧气体压力源，用于将相应压力下的导热气体施加到相应的内部和外部区域 每当工件保持在表面上时形成的工件表面界面，以及静电卡盘的内部和外部区域内的内部和外部蒸发器，以及具有各自的内部和切割器膨胀阀的制冷回路，用于控制冷却剂通过内部 和外部蒸发器。 反应器还包括静电卡盘的内部和外部区域中的内部和外部区域温度传感器以及能够模拟通过蒸发器和表面之间的内部和外部区域的热传递的热模型，其基于来自内部和 外部温度传感器。 耦合到热模型的内部和外部区域敏捷控制处理器分别响应于来自模型的各个压力的变化的预测来控制内部和外部区域背侧气体压力源，该模型将使由内部和外部区域测量的温度 传感器分别更接近所需的温度。

    CATHODE WITH INNER AND OUTER ELECTRODES AT DIFFERENT HEIGHTS
    6.
    发明申请
    CATHODE WITH INNER AND OUTER ELECTRODES AT DIFFERENT HEIGHTS 有权
    在不同高度的内部和外部电极的阴极

    公开(公告)号：US20090314433A1

    公开(公告)日：2009-12-24

    申请号：US12144463

    申请日：2008-06-23

    申请人： Daniel J. Hoffman ,  Douglas A. Buchberger, JR. ,  Semyon L. Kats ,  Dan Katz

    发明人： Daniel J. Hoffman ,  Douglas A. Buchberger, JR. ,  Semyon L. Kats ,  Dan Katz

    IPC分类号： C23F1/00 ,  H01L21/683

    CPC分类号： H01L21/6833

    摘要： An apparatus for generating uniform plasma across and beyond the peripheral edge of a substrate has a dielectric body with an upper electrode and an annular electrode embedded therein. The outer perimeter of the upper electrode overlaps the inner perimeter of the annular electrode. In one embodiment, the upper electrode and the annular electrode are electrically coupled by molybdenum vias. In one embodiment, the upper electrode is coupled to a DC power source to provide electrostatic force for chucking the substrate. In one embodiment, the upper electrode is coupled to an RF source for exciting one or more processing gasses into plasma for substrate processing.

    摘要翻译： 用于在衬底的周边边缘上产生均匀等离子体的装置具有电介质体，其具有嵌入其中的上电极和环形电极。 上电极的外周与环形电极的内周重叠。 在一个实施例中，上电极和环形电极通过钼通孔电耦合。 在一个实施例中，上电极耦合到DC电源以提供用于夹持衬底的静电力。 在一个实施例中，上电极耦合到RF源，用于将一个或多个处理气体激发成用于衬底处理的等离子体。

    METHOD OF COOLING A WAFER SUPPORT AT A UNIFORM TEMPERATURE IN A CAPACITIVELY COUPLED PLASMA REACTOR
    9.
    发明申请
    METHOD OF COOLING A WAFER SUPPORT AT A UNIFORM TEMPERATURE IN A CAPACITIVELY COUPLED PLASMA REACTOR 有权
    在一个电容耦合等离子体反应器中均匀温度下冷却支架的方法

    公开(公告)号：US20100300621A1

    公开(公告)日：2010-12-02

    申请号：US12855680

    申请日：2010-08-12

    申请人： Paul Lukas Brillhart ,  Richard Fovell ,  Douglas A. Buchberger, JR. ,  Douglas H. Burns ,  Kallol Bera ,  Daniel J. Hoffman

    发明人： Paul Lukas Brillhart ,  Richard Fovell ,  Douglas A. Buchberger, JR. ,  Douglas H. Burns ,  Kallol Bera ,  Daniel J. Hoffman

    IPC分类号： C23F1/08 ,  F25D15/00

    CPC分类号： H01L21/67109

    摘要： A method of transferring heat from or to a workpiece support in an RF coupled plasma reactor includes placing coolant in an internal flow channel that is located inside the workpiece support and transferring heat from or to the coolant by circulating the coolant through a refrigeration loop in which the internal flow channel of the workpiece support constitutes an evaporator of the refrigeration loop. The method further includes maintaining thermal conditions of the coolant inside the evaporator within a range in which heat exchange between the workpiece support and the coolant is primarily or exclusively through the latent heat of vaporization of the coolant.

    摘要翻译： 在RF耦合的等离子体反应器中将热量传递到工件支架的方法包括：将冷却剂放置在位于工件支架内部的内部流动通道中，并通过使冷却剂循环通过制冷循环来将热量传递或传递给冷却剂， 工件支撑件的内部流动通道构成制冷回路的蒸发器。 该方法还包括将蒸发器内部的冷却剂的热条件保持在工件支承件和冷却剂之间的热交换主要或仅通过冷却剂的潜热潜热的范围内。

    METHOD OF PROCESSING A WORKPIECE IN A PLASMA REACTOR USING FEED FORWARD THERMAL CONTROL
    10.
    发明申请
    METHOD OF PROCESSING A WORKPIECE IN A PLASMA REACTOR USING FEED FORWARD THERMAL CONTROL 有权
    使用前馈热控制处理等离子体反应器中的工件的方法

    公开(公告)号：US20110065279A1

    公开(公告)日：2011-03-17

    申请号：US12949028

    申请日：2010-11-18

    申请人： Douglas A. Buchberger, JR. ,  Paul Lukas Brillhart ,  Richard Fovell ,  Douglas H. Burns ,  Kallol Bera ,  Daniel J. Hoffman

    发明人： Douglas A. Buchberger, JR. ,  Paul Lukas Brillhart ,  Richard Fovell ,  Douglas H. Burns ,  Kallol Bera ,  Daniel J. Hoffman

    IPC分类号： H01L21/465

    CPC分类号： H01L21/67248 ,  F25B49/02 ,  F25B2400/0401 ,  F25B2400/0403 ,  F25B2400/0411 ,  F25B2700/21174 ,  F25B2700/21175 ,  H01J37/32091 ,  H01J37/32183 ,  H01J37/32724 ,  H01J2237/2001 ,  H01L21/67069 ,  H01L21/67109 ,  H01L21/6831 ,  H05H2001/4682

    摘要： A method of processing a workpiece in a plasma reactor having an electrostatic chuck for supporting the workpiece within a reactor chamber, the method including circulating a coolant through a refrigeration loop that includes an evaporator inside the electrostatic chuck, while pressurizing a workpiece-to-chuck interface with a thermally conductive gas, sensing conditions in the chamber including temperature near the workpiece and simulating heat flow through the electrostatic chuck in a thermal model of the chuck based upon the conditions. The method further includes obtaining the next scheduled change in RE heat load on the workpiece and using the model to estimate a change in thermal conditions of the coolant in the evaporator that would hold the temperature nearly constant by compensating for the next scheduled change in RF heat load, and making the change in thermal conditions of the coolant in the evaporator prior to the time of the next scheduled change by a head start related to the thermal propagation delay through the electrostatic chuck.

    摘要翻译： 一种在等离子体反应器中处理工件的方法，所述等离子体反应器具有用于在反应室内支撑工件的静电卡盘，所述方法包括使冷却剂循环通过包括静电卡盘内的蒸发器的制冷回路，同时对工件 - 卡盘 与导热气体接触，基于条件，感测室内的条件，包括工件附近的温度，并模拟卡盘热模型中通过静电卡盘的热流。 该方法还包括获得在工件上的RE热负荷的下一个调度的变化，并且使用该模型来估计蒸发器中的冷却剂的热条件的变化，该变化将通过补偿下一个预定的RF热变化来保持温度几乎恒定 在通过静电卡盘的热传播延迟的头开始的下一次预定改变之前，在蒸发器中的冷却剂的热条件的变化。