Composition for tungsten CMP
    2.
    发明授权
    Composition for tungsten CMP 有权
    钨CMP的组成

    公开(公告)号:US09238754B2

    公开(公告)日:2016-01-19

    申请号:US14203621

    申请日:2014-03-11

    摘要: A chemical mechanical polishing composition for polishing a substrate having a tungsten layer includes a water based liquid carrier, a colloidal silica abrasive dispersed in the liquid carrier and having a permanent positive charge of at least 6 mV, an amine compound in solution in the liquid carrier, and an iron containing accelerator. A method for chemical mechanical polishing a substrate including a tungsten layer includes contacting the substrate with the above described polishing composition, moving the polishing composition relative to the substrate, and abrading the substrate to remove a portion of the tungsten from the substrate and thereby polish the substrate.

    摘要翻译: 一种用于抛光具有钨层的基材的化学机械抛光组合物包括水基液体载体,分散在液体载体中的胶体二氧化硅磨料并具有至少6mV的永久正电荷,液体载体中的溶液中的胺化合物 ,和含铁促进剂。 用于化学机械抛光包括钨层的基材的方法包括使基底与上述抛光组合物接触,使抛光组合物相对于基底移动,并研磨基底以从基底去除一部分钨,从而抛光 基质。

    Composition for tungsten buffing
    7.
    发明授权
    Composition for tungsten buffing 有权
    钨粉抛光组成

    公开(公告)号:US09309442B2

    公开(公告)日:2016-04-12

    申请号:US14222086

    申请日:2014-03-21

    CPC分类号: C09G1/02 B24B37/044 C23F3/06

    摘要: A chemical mechanical polishing composition for polishing a substrate having a tungsten layer includes a water based liquid carrier and colloidal silica abrasive particles dispersed in the liquid carrier. The colloidal silica abrasive particles have a permanent positive charge of at least 6 mV. About 30 percent or more of the colloidal silica abrasive particles include three or more aggregated primary particles.

    摘要翻译: 用于研磨具有钨层的基材的化学机械抛光组合物包括分散在液体载体中的水性液体载体和胶态二氧化硅磨料颗粒。 胶体二氧化硅磨料颗粒具有至少6mV的永久正电荷。 大约30%以上的胶态二氧化硅磨料颗粒包括三个或更多个聚集的初级颗粒。

    Mixed abrasive tungsten CMP composition
    8.
    发明授权
    Mixed abrasive tungsten CMP composition 有权
    混合研磨钨CMP组成

    公开(公告)号:US09303190B2

    公开(公告)日:2016-04-05

    申请号:US14222736

    申请日:2014-03-24

    摘要: A chemical mechanical polishing composition for polishing a substrate having a tungsten layer includes a water based liquid carrier, first and second colloidal silica abrasives dispersed in the liquid carrier, and an iron containing accelerator. The first colloidal silica abrasive and the second colloidal silica abrasive each have a permanent positive charge of at least 10 mV. An average particle size of the second silica abrasive is at least 20 nanometers greater than an average particle size of the first silica abrasive. A method for chemical mechanical polishing a substrate including a tungsten layer is further disclosed. The method may include contacting the substrate with the above described polishing composition, moving the polishing composition relative to the substrate, and abrading the substrate to remove a portion of the tungsten from the substrate and thereby polish the substrate.

    摘要翻译: 用于研磨具有钨层的基材的化学机械抛光组合物包括水基液体载体,分散在液体载体中的第一和第二胶体二氧化硅研磨剂和含铁促进剂。 第一胶体二氧化硅研磨剂和第二胶态二氧化硅磨料各自具有至少10mV的永久正电荷。 第二硅石研磨剂的平均粒度比第一二氧化硅研磨剂的平均粒径大至少20纳米。 还公开了一种用于化学机械研磨包括钨层的衬底的方法。 该方法可以包括使基底与上述抛光组合物接触,使抛光组合物相对于基底移动,并研磨基底以从基底去除一部分钨,从而抛光基底。

    Composition for tungsten CMP
    9.
    发明授权
    Composition for tungsten CMP 有权
    钨CMP的组成

    公开(公告)号:US09303189B2

    公开(公告)日:2016-04-05

    申请号:US14203693

    申请日:2014-03-11

    IPC分类号: C09K13/00 C09G1/02 H01L21/321

    摘要: A chemical mechanical polishing composition for polishing a substrate having a tungsten layer includes a water based liquid carrier, a colloidal silica abrasive dispersed in the liquid carrier and having a permanent positive charge of at least 6 mV, an amine containing polymer in solution in the liquid carrier, and an iron containing accelerator. A method for chemical mechanical polishing a substrate including a tungsten layer includes contacting the substrate with the above described polishing composition, moving the polishing composition relative to the substrate, and abrading the substrate to remove a portion of the tungsten from the substrate and thereby polish the substrate.

    摘要翻译: 用于研磨具有钨层的基材的化学机械抛光组合物包括水基液体载体,分散在液体载体中的具有永久正电荷至少6mV的胶体二氧化硅磨料,液体溶液中的含胺聚合物 载体和含铁促进剂。 用于化学机械抛光包括钨层的基材的方法包括使基底与上述抛光组合物接触,使抛光组合物相对于基底移动,并研磨基底以从基底去除一部分钨,从而抛光 基质。