Selective capping of copper
    2.
    发明授权
    Selective capping of copper 有权
    铜的选择性封盖

    公开(公告)号:US08278216B1

    公开(公告)日:2012-10-02

    申请号:US11506761

    申请日:2006-08-18

    IPC分类号: H01L21/44

    摘要: The present invention provides methods of selectively depositing refractory metal and metal nitride cap layers onto copper lines inlaid in a dielectric layer. The methods result in formation of a cap layer on the copper lines without significant formation on the surrounding dielectric material. The methods typically involve exposing the copper lines to a nitrogen-containing organo-metallic precursor and a reducing agent under conditions that the metal or metal nitride layer is selectively deposited. In a particular embodiment, an amino-containing tungsten precursor is used to deposit a tungsten nitride layer. Deposition methods such as CVD or ALD may be used.

    摘要翻译: 本发明提供了将难熔金属和金属氮化物覆盖层选择性地沉积在嵌入介电层中的铜线上的方法。 该方法导致在铜线上形成覆盖层,而不会在周围的电介质材料上形成明显的形成。 所述方法通常包括在选择性沉积金属或金属氮化物层的条件下将铜线暴露于含氮有机金属前体和还原剂。 在一个具体实施方案中,使用含氨基的钨前体沉积氮化钨层。 可以使用CVD或ALD等沉积方法。

    CVD flowable gap fill
    6.
    发明授权
    CVD flowable gap fill 有权
    CVD可流动缝隙填充

    公开(公告)号:US07629227B1

    公开(公告)日:2009-12-08

    申请号:US11925514

    申请日:2007-10-26

    IPC分类号: H01L21/76

    CPC分类号: H01L21/76224

    摘要: Methods of lining and/or filling gaps on a substrate by creating flowable silicon oxide-containing films are provided. The methods involve introducing vapor-phase silicon-containing precursor and oxidant reactants into a reaction chamber containing the substrate under conditions such that a condensed flowable film is formed on the substrate. The flowable film at least partially fills gaps on the substrates and is then converted into a silicon oxide film. In certain embodiments, the methods involve using a catalyst, e.g., a nucleophile or onium catalyst, in the formation of the film. The catalyst may be incorporated into one of the reactants and/or introduced as a separate reactant. Also provided are methods of converting the flowable film to a solid dielectric film. The methods of this invention may be used to line or fill high aspect ratio gaps, including gaps having aspect ratios ranging from 3:1 to 10:1.

    摘要翻译: 提供了通过产生可流动的含氧化硅膜在衬底上衬里和/或填充间隙的方法。 所述方法包括将气相含硅前体和氧化剂反应物引入含有基材的反应室中,使得在基材上形成冷凝的可流动的膜。 可流动膜至少部分地填充衬底上的间隙,然后转换成氧化硅膜。 在某些实施方案中,所述方法包括在形成膜中使用催化剂,例如亲核试剂或鎓催化剂。 催化剂可以并入到一种反应物中和/或作为单独的反应物引入。 还提供了将可流动膜转化为固体电介质膜的方法。 本发明的方法可用于对高纵横比间隙进行线或填充,包括具有3:1至10:1的纵横比的间隙。