ELECTROSTATIC CHUCK HAVING THERMALLY ISOLATED ZONES WITH MINIMAL CROSSTALK

    公开(公告)号:US20190279893A1

    公开(公告)日:2019-09-12

    申请号:US16421301

    申请日:2019-05-23

    Abstract: A substrate support assembly includes a ceramic puck and a thermally conductive base having an upper surface that is bonded to the ceramic puck. The thermally conductive base includes a plurality of thermal zones and a thermally managed material embedded in the thermally conductive base at the upper surface of the thermally conductive base in one or more of the plurality of thermal zones. The thermally managed material has different thermal conductive properties along a first direction and a second direction. The thermally conductive base further includes a plurality of thermal isolators that extend from the upper surface of the thermally conductive base towards a lower surface of the thermally conductive base between two or more of the plurality of thermal zones without contacting the lower surface of the thermally conductive base. Each of the plurality of thermal isolators provides a degree of thermal isolation.

    Single-body electrostatic chuck
    5.
    发明授权
    Single-body electrostatic chuck 有权
    单体静电吸盘

    公开(公告)号:US08941969B2

    公开(公告)日:2015-01-27

    申请号:US13725449

    申请日:2012-12-21

    Abstract: An electrostatic chuck includes a thermally conductive base having a plurality of heating elements disposed therein. A metal layer covers at least a portion of the thermally conductive base, wherein the metal layer shields the plurality of heating elements from radio frequency (RF) coupling and functions as an electrode for the electrostatic chuck. A plasma resistant dielectric layer covers the metal layer.

    Abstract translation: 静电卡盘包括其中布置有多个加热元件的导热基座。 金属层覆盖导热基体的至少一部分,其中金属层将多个加热元件与射频(RF)耦合屏蔽,并用作静电卡盘的电极。 等离子体电介质层覆盖金属层。

    Electrostatic chuck having thermally isolated zones with minimal crosstalk

    公开(公告)号:US11088005B2

    公开(公告)日:2021-08-10

    申请号:US16421301

    申请日:2019-05-23

    Abstract: A substrate support assembly includes a ceramic puck and a thermally conductive base having an upper surface that is bonded to the ceramic puck. The thermally conductive base includes a plurality of thermal zones and a thermally managed material embedded in the thermally conductive base at the upper surface of the thermally conductive base in one or more of the plurality of thermal zones. The thermally managed material has different thermal conductive properties along a first direction and a second direction. The thermally conductive base further includes a plurality of thermal isolators that extend from the upper surface of the thermally conductive base towards a lower surface of the thermally conductive base between two or more of the plurality of thermal zones without contacting the lower surface of the thermally conductive base. Each of the plurality of thermal isolators provides a degree of thermal isolation.

    Control systems employing deflection sensors to control clamping forces applied by electrostatic chucks, and related methods
    10.
    发明授权
    Control systems employing deflection sensors to control clamping forces applied by electrostatic chucks, and related methods 有权
    使用偏转传感器控制由静电卡盘施加的夹紧力的控制系统及相关方法

    公开(公告)号:US09558981B2

    公开(公告)日:2017-01-31

    申请号:US14158112

    申请日:2014-01-17

    CPC classification number: H01L21/6833 H01L21/67288

    Abstract: A control system that includes deflection sensors which can control clamping forces applied by electrostatic chucks, and related methods are disclosed. By using a sensor to determine a deflection of a workpiece supported by an electrostatic chuck, a control system may use the deflection measured to control a clamping force applied to the workpiece by the electrostatic chuck. The control system applies a clamping voltage to the electrostatic chuck so that the clamping force reaches and maintains a target clamping force. In this manner, the clamping force may secure the workpiece to the electrostatic chuck to enable manufacturing operations to be performed while preventing workpiece damage resulting from unnecessary higher values of the clamping force.

    Abstract translation: 公开了一种包括能够控制由静电卡盘施加的夹持力的偏转传感器的控制系统及相关方法。 通过使用传感器来确定由静电卡盘支撑的工件的偏转,控制系统可以使用测量的偏转来控制由静电卡盘施加到工件的夹紧力。 控制系统对静电卡盘施加钳位电压,使得夹紧力达到并保持目标夹紧力。 以这种方式,夹紧力可以将工件固定到静电卡盘,以使得能够进行制造操作,同时防止由于不必要的较高的夹紧力而导致的工件损坏。

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