Pulsed deposition process for tungsten nucleation
    3.
    发明授权
    Pulsed deposition process for tungsten nucleation 失效
    钨成核的脉冲沉积工艺

    公开(公告)号:US07695563B2

    公开(公告)日:2010-04-13

    申请号:US11621040

    申请日:2007-01-08

    IPC分类号: C30B25/14

    摘要: In one embodiment, a method for depositing a tungsten material on a substrate within a process chamber is provided which includes exposing the substrate to a gaseous mixture containing a tungsten precursor and a reducing gas to deposit a tungsten nucleation layer on the substrate during a tungsten deposition process. The process further includes removing reaction by-products generated during the tungsten deposition process from the process chamber, exposing the substrate to the reducing gas to react with residual tungsten precursor within the process chamber during a soak process, removing reaction by-products generated during the soak process from the process chamber, and repeating the tungsten deposition process and the soak process during a cyclic deposition process. In the examples, the reducing gas may contain diborane or silane.

    摘要翻译: 在一个实施例中,提供了一种用于在处理室内的衬底上沉积钨材料的方法,其包括将衬底暴露于含有钨前体和还原气体的气态混合物,以在钨沉积期间在衬底上沉积钨成核层 处理。 该方法还包括从处理室除去在钨沉积过程中产生的反应副产物,在浸泡过程期间将基底暴露于还原气体以与处理室内的残余钨前体反应,除去在该过程中产生的反应副产物 从处理室浸泡处理,并且在循环沉积工艺期间重复钨沉积工艺和浸泡工艺。 在实施例中,还原气体可以含有乙硼烷或硅烷。