Polishing method
    31.
    发明授权
    Polishing method 失效
    抛光方法

    公开(公告)号:US5609511A

    公开(公告)日:1997-03-11

    申请号:US421247

    申请日:1995-04-13

    CPC分类号: B24B37/013 B24B49/12 B24D7/12

    摘要: Disclosed is a method of polishing a thin film layer to be polished, which is formed on the surface of a substrate, by pressing the substrate on the surface of a polishing pad and relatively moving the substrate and the polishing pad, the method comprising the steps of: detecting the position of a front surface of the thin film layer to be polished using a first sensor and also detecting the position of a bottom surface of the thin film layer using a second sensor, on the way of the polishing; calculating the residual thickness of the thin film layer on the basis of the detected positions of the front and bottom surfaces of the thin film layer; and controlling the processing condition of the subsequent polishing on the basis of the calculated residual thickness of the thin film layer.

    摘要翻译: 本发明公开了一种通过将基板压在抛光垫的表面上并使基板和抛光垫相对移动而形成在基板表面上的抛光薄膜层的方法,该方法包括步骤 使用第一传感器检测待研磨的薄膜层的前表面的位置,并且在抛光的同时使用第二传感器检测薄膜层的底面的位置; 基于检测到的薄膜层的前表面和底表面的位置计算薄膜层的剩余厚度; 并根据计算出的薄膜层的残留厚度来控制后续研磨的处理条件。