Dishing and defect control of chemical mechanical polishing using real-time adjustable additive delivery
    5.
    发明授权
    Dishing and defect control of chemical mechanical polishing using real-time adjustable additive delivery 有权
    化学机械抛光的抛光和缺陷控制使用实时可调添加剂递送

    公开(公告)号:US08210900B2

    公开(公告)日:2012-07-03

    申请号:US12263237

    申请日:2008-10-31

    IPC分类号: B24B49/00

    CPC分类号: B24B37/04 B24B57/02

    摘要: A method and apparatus for polishing or planarizing a substrate by a chemical mechanical polishing process. In one embodiment a method of processing a semiconductor substrate is provided. The method comprises positioning a substrate on a polishing apparatus comprising a polishing pad assembly, delivering a polishing slurry to a surface of the polishing pad assembly, polishing the substrate with the surface of the polishing pad assembly, monitoring the removal rate of material from a plurality of regions on the surface of the substrate, determining whether the plurality of regions on the surface of the substrate are polishing uniformly, and selectively delivering a polishing slurry additive to at least one region of the plurality of regions to obtain a uniform removal rate of material from the plurality of regions on the surface of the substrate, wherein the removal rate of material from the at least one region is different than at least one other region of the plurality of regions.

    摘要翻译: 一种用于通过化学机械抛光工艺抛光或平面化基板的方法和装置。 在一个实施例中,提供了一种处理半导体衬底的方法。 该方法包括将衬底定位在包括抛光垫组件的抛光设备上,将抛光浆料输送到抛光垫组件的表面,用抛光垫组件的表面抛光衬底,监测来自多个部件的材料的去除速率 在基板表面上确定基板表面上的多个区域是否均匀抛光,并且将抛光浆料添加剂选择性地输送到多个区域中的至少一个区域以获得均匀的材料去除速率 从所述衬底表面上的多个区域中去除所述至少一个区域的材料的去除速率不同于所述多个区域中的至少一个其它区域。

    Method and apparatus for enhanced CMP using metals having reductive properties

    公开(公告)号:US06537144B1

    公开(公告)日:2003-03-25

    申请号:US09505899

    申请日:2000-02-17

    IPC分类号: B24D1100

    摘要: Dishing in chemical mechanical polishing (CMP) is reduced by introducing a material that balances electrochemical forces. In a first embodiment of the invention, a polishing pad having copper material in grooves on the polishing pad surface is used in the polishing process to reduce dishing. In a second embodiment of the invention, the polishing pad has perforations with copper fillings. In a third embodiment of the invention, a copper retaining ring on the polishing head introduces copper material to the CMP process to reduce dishing. In a fourth embodiment of the invention, a conditioning plate of copper is used in the polishing apparatus. In a fifth embodiment of the invention, additional copper features are placed on the substrate to be polished. The polishing of the additional features introduces copper steadily through the polishing process. In a sixth embodiment of the invention, copper compounds are added to the polish slurry.

    CMP slurry for planarizing metals
    10.
    发明授权
    CMP slurry for planarizing metals 失效
    用于平坦化金属的CMP浆料

    公开(公告)号:US06520840B1

    公开(公告)日:2003-02-18

    申请号:US09692723

    申请日:2000-10-19

    IPC分类号: B24B100

    CPC分类号: C09K3/1463 C09G1/02

    摘要: A CMP slurry is formulated with an oxidizer capable of oxidizing a metal undergoing planarization and yielding a complexing agent which complexes with the oxidized metal thereby minimizing overetching. The slurry may further include abrasive particles, inhibitors, pH adjusting agents, and combinations thereof.

    摘要翻译: 用能够氧化经历平坦化的金属的氧化剂配制CMP浆料,并产生与氧化金属络合的络合剂,从而使过蚀刻最小化。 浆料还可包括磨料颗粒,抑制剂,pH调节剂及其组合。