Method and apparatus for dressing polishing cloth
    4.
    发明授权
    Method and apparatus for dressing polishing cloth 失效
    抛光布修整方法和装置

    公开(公告)号:US06364752B1

    公开(公告)日:2002-04-02

    申请号:US08881616

    申请日:1997-06-25

    IPC分类号: B24B722

    摘要: A polishing cloth mounted on a turntable is dressed by bringing a dresser in contact with the polishing cloth for restoring the polishing capability of the polishing cloth. The dressing is performed by measuring heights of a surface of the polishing cloth at radial positions of the polishing cloth in a radial direction thereof, determining a rotational speed of the dresser with respect to a rotational speed of the turntable on the basis of the measured heights, and dressing the polishing cloth by pressing the dresser against the polishing cloth while the turntable and the dresser are rotating. The dresser has an annular diamond grain layer or an annular SiC layer.

    摘要翻译: 通过使修整器与抛光布接触来修整安装在转台上的抛光布,以恢复抛光布的抛光能力。 通过在抛光布的径向方向的径向位置处测量抛光布的表面的高度来进行修整,根据测量的高度确定修整器相对于转盘的旋转速度的转速 并且在转台和修整器旋转的同时通过将修整器压靠抛光布来修整抛光布。 修整器具有环形金刚石颗粒层或环形SiC层。

    Polishing apparatus
    7.
    发明授权
    Polishing apparatus 有权
    抛光设备

    公开(公告)号:US06409582B1

    公开(公告)日:2002-06-25

    申请号:US09531589

    申请日:2000-03-20

    IPC分类号: B24B722

    摘要: A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus, includes a turntable having a polishing surface thereon, and a top ring for holding a workpiece to be polished and pressing the workpiece against the polishing surface on the turntable. A pusher is disposed in a position for transferring the workpiece to and from the top ring, and has a workpiece support which can be lifted to a position close to the top ring for transferring the workpiece to and from the top ring. When the workpiece support receives a polished workpiece and is lowered, a cleaning liquid is ejected substantially simultaneously from three cleaning nozzle units that are disposed in respective three positions to clean the upper and lower surfaces of the workpiece and the lower surface of the top ring.

    摘要翻译: 抛光装置用于将诸如半导体晶片的工件抛光到平面镜面。 抛光装置包括其上具有抛光表面的转台和用于保持要抛光的工件的顶环,并将工件压靠在转盘上的抛光表面上。 推动器设置在用于将工件传递到顶环的位置并且具有可以被提升到靠近顶环的位置的工件支撑件,用于将工件传送到顶环和从顶环移出。 当工件支撑件接收到抛光的工件并且被降低时,基本上同时从设置在三个位置的清洁喷嘴单元喷射清洁液体,以清洁工件的上表面和下表面以及顶环的下表面。

    Polishing apparatus
    8.
    发明授权
    Polishing apparatus 有权
    抛光设备

    公开(公告)号:US6074276A

    公开(公告)日:2000-06-13

    申请号:US215147

    申请日:1998-12-18

    摘要: A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a polishing section for polishing a surface of a workpiece, a cleaning section for cleaning the workpiece which has been polished, a first liquid leakage sensor provided in the polishing section for detecting a liquid leakage which occurs in the polishing section, and a second liquid leakage sensor provided in the cleaning section for detecting a liquid leakage which occurs in the cleaning section. The polishing apparatus further includes a controlling device for stopping the supply of liquid to the polishing section or the cleaning section in which the liquid leakage occurs when either one of the first and second liquid leakage sensors detects the liquid leakage.

    摘要翻译: 抛光装置用于将诸如半导体晶片的工件抛光到平面镜面。 抛光装置包括用于抛光工件表面的抛光部分,用于清洁已经被抛光的工件的清洁部分,设置在用于检测在抛光部分中发生的液体泄漏的抛光部分中的第一液体泄漏传感器,以及 第二液体泄漏传感器,设置在清洁部分中,用于检测在清洁部分中发生的液体泄漏。 抛光装置还包括一个控制装置,用于当第一和第二液体泄漏传感器中的任何一个检测到液体泄漏时,停止向抛光部分或清洁部分供应液体泄漏。

    Polishing apparatus
    9.
    再颁专利

    公开(公告)号:USRE38215E1

    公开(公告)日:2003-08-12

    申请号:US09814060

    申请日:2001-03-22

    IPC分类号: B24B724

    摘要: A polishing apparatus is used for polishing a workpiece such as a semiconductor wafer to a flat mirror finish. The polishing apparatus includes a polishing section for polishing a surface of a workpiece, a cleaning section for cleaning the workpiece which has been polished, a first liquid leakage sensor provided in the polishing section for detecting a liquid leakage which occurs in the polishing section, and a second liquid leakage sensor provided in the cleaning section for detecting a liquid leakage which occurs in the cleaning section. The polishing apparatus further includes a controlling device for stopping the supply of liquid to the polishing section or the cleaning section in which the liquid leakage occurs when either one of the first and second liquid leakage sensors detects the liquid leakage.