Multi-layer polishing pad for low-pressure polishing
    1.
    发明授权
    Multi-layer polishing pad for low-pressure polishing 有权
    用于低压抛光的多层抛光垫

    公开(公告)号:US08066552B2

    公开(公告)日:2011-11-29

    申请号:US11043361

    申请日:2005-01-26

    IPC分类号: B24B29/00

    摘要: A polishing pad has a polishing layer and a backing layer secured to the polishing layer. The polishing layer has a polishing surface, a first thickness, a first compressibility, and a hardness between about 40 to 80 Shore D. The backing layer has a second thickness and has a second compressibility greater than the first compressibility. The first thickness, first compressibility, second thickness and second compressibility are such that the polishing surface deflects more than the thickness non-uniformity of the polishing layer under an applied pressure of 1.5 psi or less.

    摘要翻译: 抛光垫具有固定到抛光层的抛光层和背衬层。 抛光层具有抛光表面,第一厚度,第一可压缩性和约40至80肖氏D之间的硬度。背衬层具有大于第一可压缩性的第二厚度并具有第二可压缩性。 第一厚度,第一可压缩性,第二厚度和第二可压缩性使得抛光表面在1.5psi或更小的施加压力下偏转大于抛光层的厚度不均匀性。

    Method and apparatus for face-up substrate polishing
    4.
    发明授权
    Method and apparatus for face-up substrate polishing 失效
    面朝上衬底抛光的方法和装置

    公开(公告)号:US06776693B2

    公开(公告)日:2004-08-17

    申请号:US10163796

    申请日:2002-06-04

    IPC分类号: B24B100

    摘要: A method and apparatus are provided for polishing a substrate surface. In one aspect, an apparatus for polishing a substrate includes a basin and a polishing head. A carrier is disposed in the basin and has a substrate supporting surface. A retaining ring is disposed on the carrier and at least partially circumscribes the substrate supporting surface. The polishing head is supported above the basin and includes a conductive polishing pad. Embodiments may further include a vent to allow gas to escape through the polishing head. Embodiments may further include an electrolyte supply that flows electrolyte into the polishing head and out through a permeable electrode and the conductive pad to the substrate. Embodiments may also be configured with a polishing head diameter smaller than the substrate supported by the carrier.

    摘要翻译: 提供了一种用于抛光衬底表面的方法和装置。 一方面,用于抛光衬底的装置包括盆和抛光头。 载体布置在盆中并具有基底支撑表面。 保持环设置在载体上并且至少部分地限定基板支撑表面。 抛光头支撑在盆面上方,并包括导电抛光垫。 实施例还可包括通气孔,以允许气体通过抛光头逸出。 实施例还可以包括将电解质流入抛光头并通过可渗透电极流出并将导电垫流到基底的电解质供应。 实施例还可以被配置为具有小于由载体支撑的基板的抛光头直径。

    Electroprocessing profile control
    10.
    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。