Data processing for monitoring chemical mechanical polishing

    公开(公告)号:US20060009131A1

    公开(公告)日:2006-01-12

    申请号:US11222561

    申请日:2005-09-08

    CPC classification number: B24B37/013 B24B49/10

    Abstract: Methods and apparatus to implement techniques for monitoring polishing a substrate. Two or more data points are acquired, where each data point has a value affected by features inside a sensing region of a sensor and corresponds to a relative position of the substrate and the sensor as the sensing region traverses through the substrate. A set of reference points is used to modify the acquired data points. The modification compensates for distortions in the acquired data points caused by the sensing region traversing through the substrate. Based on the modified data points, a local property of the substrate is evaluated to monitor polishing.

    System and method for in-line metal profile measurement
    4.
    发明申请
    System and method for in-line metal profile measurement 有权
    在线金属型材测量的系统和方法

    公开(公告)号:US20050048874A1

    公开(公告)日:2005-03-03

    申请号:US10966948

    申请日:2004-10-15

    Abstract: A system includes a measuring station for positioning an eddy current probe proximate to a substrate in a substrate holder. The probe can produce a time-varying magnetic field, in order to induce eddy currents in one or more conductive regions of a substrate either prior to or subsequent to polishing. The eddy current signals are detected, and may be used to update one or more polishing parameters for a chemical mechanical polishing system. The substrate holder may be located in a number places; for example, in a substrate transfer system, a factory interface module, a cleaner, or in a portion of the chemical mechanical polishing system away from the polishing stations. Additional probes may be used.

    Abstract translation: 一种系统包括用于将涡流探针靠近衬底保持器中的衬底定位的测量站。 探针可以产生时变磁场,以便在抛光之前或之后在衬底的一个或多个导电区域中引起涡流。 检测涡流信号,并可用于更新化学机械抛光系统的一个或多个抛光参数。 衬底保持器可以位于多个位置; 例如,在基板传送系统,工厂接口模块,清洁器或化学机械抛光系统的远离抛光站的一部分中。 可以使用附加的探针。

    System and method for in-line metal profile measurement
    6.
    发明申请
    System and method for in-line metal profile measurement 审中-公开
    在线金属型材测量的系统和方法

    公开(公告)号:US20060246822A1

    公开(公告)日:2006-11-02

    申请号:US11479299

    申请日:2006-06-29

    Abstract: A system includes a measuring station for positioning an eddy current probe proximate to a substrate in a substrate holder. The probe can produce a time-varying magnetic field, in order to induce eddy currents in one or more conductive regions of a substrate either prior to or subsequent to polishing. The eddy current signals are detected, and may be used to update one or more polishing parameters for a chemical mechanical polishing system. The substrate holder may be located in a number places; for example, in a substrate transfer system, a factory interface module, a cleaner, or in a portion of the chemical mechanical polishing system away from the polishing stations. Additional probes may be used.

    Abstract translation: 一种系统包括用于将涡流探针靠近衬底保持器中的衬底定位的测量站。 探针可以产生时变磁场,以便在抛光之前或之后在衬底的一个或多个导电区域中引起涡流。 检测涡流信号,并可用于更新化学机械抛光系统的一个或多个抛光参数。 衬底保持器可以位于多个位置; 例如,在基板传送系统,工厂接口模块,清洁器或化学机械抛光系统的远离抛光站的一部分中。 可以使用附加的探针。

    Eddy current sensing of metal removal for chemical mechanical polishing
    8.
    发明申请
    Eddy current sensing of metal removal for chemical mechanical polishing 审中-公开
    用于化学机械抛光的金属去除的涡流检测

    公开(公告)号:US20060009128A1

    公开(公告)日:2006-01-12

    申请号:US11218977

    申请日:2005-09-01

    Abstract: A sensor for monitoring a conductive film in a substrate during chemical mechanical polishing generates an alternating magnetic field that impinges a substrate and induces eddy currents. The sensor can have a core, a first coil wound around a first portion of the core and a second coil wound around a second portion of the core. The sensor can be positioned on a side of the polishing surface opposite the substrate. The sensor can detect a phase difference between a drive signal and a measured signal.

    Abstract translation: 用于在化学机械抛光期间监测衬底中的导电膜的传感器产生撞击衬底并引起涡流的交变磁场。 传感器可以具有芯,围绕芯的第一部分缠绕的第一线圈和缠绕在芯的第二部分上的第二线圈。 传感器可以位于与衬底相对的抛光表面的一侧。 传感器可以检测到驱动信号和测量信号之间的相位差。

    Method and apparatus for detecting polishing endpoint with optical monitoring
    10.
    发明授权
    Method and apparatus for detecting polishing endpoint with optical monitoring 有权
    用光学监测检测抛光终点的方法和装置

    公开(公告)号:US06399501B2

    公开(公告)日:2002-06-04

    申请号:US09460529

    申请日:1999-12-13

    CPC classification number: B24B37/013 B24B49/04 B24B49/12 H01L21/3212

    Abstract: An apparatus, as well as a method, brings a surface of a substrate into contact with a polishing pad that has a window, causes relative motion between the substrate and the polishing pad, and directs a light beam through the window so that the motion of the polishing pad relative to the substrate causes the light beam to move in a path across the substrate. An extreme intensity measurement is derived from a plurality of intensity measurements made as the light beam moves across the substrate. The beam sweeps across the substrate a plurality of times to generate a plurality of extreme intensity measurements, and a polishing endpoint is detected based on the plurality of extreme intensity measurements.

    Abstract translation: 一种装置以及方法使基板的表面与具有窗口的抛光垫接触,引起基板和抛光垫之间的相对运动,并引导光束通过窗口,使得运动 抛光垫相对于基底使得光束在穿过基底的路径中移动。 当光束穿过衬底移动时,从多个强度测量得出极强度测量。 光束扫过基板多次以产生多个极强度测量,并且基于多个极强度测量来检测抛光端点。

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