Electroprocessing profile control
    5.
    发明授权
    Electroprocessing profile control 失效
    电加工配置文件控制

    公开(公告)号:US07709382B2

    公开(公告)日:2010-05-04

    申请号:US11877233

    申请日:2007-10-23

    摘要: Embodiments of the present invention provide methods of electroprocessing a substrate. One embodiment of the present invention provides a method comprises pressing a substrate against a polishing pad with a force less than about two pounds per square inch, the substrate contacting a first electrode of the polishing pad, applying an electrical bias to the substrate with the first electrode relative to a second electrode of the polishing pad, wherein the second electrode is disposed below the second electrode, and biasing a third electrode disposed in the polishing pad radially outward of the second electrode.

    摘要翻译: 本发明的实施方案提供了对基底进行电处理的方法。 本发明的一个实施方案提供了一种方法,包括以小于约2磅/平方英寸的力将衬底压靠抛光垫,衬底与抛光垫的第一电极接触,将第一电极施加电偏压至衬底 电极,其中所述第二电极设置在所述第二电极下方,并且偏置设置在所述抛光垫中的第三电极,所述第三电极位于所述第二电极的径向外侧。

    Edge bead removal by an electro polishing process
    10.
    发明授权
    Edge bead removal by an electro polishing process 有权
    通过电抛光工艺去除边缘珠

    公开(公告)号:US07303462B2

    公开(公告)日:2007-12-04

    申请号:US11087878

    申请日:2005-03-22

    IPC分类号: B24B1/00 B23H3/00 C25D17/00

    摘要: A method and apparatus for the removal of a deposited conductive layer along an edge of a substrate using an electrode configured to electro polish a substrate edge are disclosed. The electro polishing of the substrate edge may occur simultaneously during electrochemical mechanical processing (Ecmp) of a substrate face. In one embodiment, a power source applies a bias between the substrate and at least two electrodes. The electrodes form a first electrode zone proximate the substrate edge at a sufficient potential to electro polish the substrate edge, thereby removing the conductive layer from the substrate edge. A second electrode zone with a lower potential than the first electrode zone is aligned proximate the substrate face during processing to enable Ecmp of the substrate face.

    摘要翻译: 公开了一种用于使用构造成电抛光衬底边缘的电极沿着衬底的边缘去除沉积的导电层的方法和装置。 基板边缘的电抛光可以在基板表面的电化学机械处理(Ecmp)期间同时发生。 在一个实施例中,电源在衬底和至少两个电极之间施加偏压。 电极以足够的电位形成靠近衬底边缘的第一电极区域,以电抛光衬底边缘,从而从衬底边缘去除导电层。 具有比第一电极区域更低的电位的第二电极区在处理期间靠近衬底面对齐以使得衬底面的Ecmp。