Regeneration of chemical mechanical polishing pads in-situ
    6.
    发明授权
    Regeneration of chemical mechanical polishing pads in-situ 失效
    化学机械抛光垫原位再生

    公开(公告)号:US06296717B1

    公开(公告)日:2001-10-02

    申请号:US09330657

    申请日:1999-06-11

    IPC分类号: C23G136

    CPC分类号: B24B37/042 H01L21/30625

    摘要: An in-situ method for regenerating a chemical-mechanical polishing pad which includes the steps of: forming the polishing pad by dispensing liquid moldable material, such as wax, polymers or water, on a polishing surface and solidifying the liquid material by reducing the temperature, allowing the moldable material to harden; distributing slurry material on the polishing pad; polishing the surface of a semiconductor wafer with a combination of the slurry material and the polishing pad; and regenerating in-situ the polishing pad. This method quickly, easily and repeatably, resurfaces and refreshes the surface on which the a semiconductor wafer is polished. The polishing pad may also include abrasives embedded therein to enhance its polishing capabilities.

    摘要翻译: 一种用于再生化学机械抛光垫的原位方法,其包括以下步骤:通过在抛光表面上分配液体可模制材料(例如蜡,聚合物或水)形成抛光垫,并通过降低温度来固化液体材料 ,使可模塑材料硬化; 在抛光垫上分配浆料; 用浆料和抛光垫的组合抛光半导体晶片的表面; 并原位再生抛光垫。 该方法快速,容易和重复地重现和刷新其上抛光半导体晶片的表面。 抛光垫还可以包括嵌入其中的磨料以增强其抛光能力。

    Piezo-actuated CMP carrier
    10.
    发明授权
    Piezo-actuated CMP carrier 失效
    压电式CMP载体

    公开(公告)号:US06325696B1

    公开(公告)日:2001-12-04

    申请号:US09395393

    申请日:1999-09-13

    IPC分类号: B24B4900

    摘要: A chemical-mechanical polishing (CMP) control system controls distribution of pressure across the backside of a semiconductor wafer being polished. The system includes a CMP apparatus having a carrier for supporting a semiconductor wafer. The carrier includes a plurality of dual function piezoelectric actuators. The actuators sense pressure variations across the semiconductor wafer and are individually controllable. A control is connected to the actuators for monitoring sensed pressure variations and controlling the actuators to provide a controlled pressure distribution across the semiconductor wafer.

    摘要翻译: 化学机械抛光(CMP)控制系统控制正在抛光的半导体晶片背面的压力分布。 该系统包括具有用于支撑半导体晶片的载体的CMP装置。 载体包括多个双功能压电致动器。 致动器感测半导体晶片上的压力变化,并且可以单独控制。 控制器连接到致动器,用于监测感测的压力变化并控制致动器以提供横跨半导体晶片的受控压力分布。