Method for filling contact holes with metal by two-step deposition
    1.
    发明授权
    Method for filling contact holes with metal by two-step deposition 失效
    通过两步沉积用金属填充接触孔的方法

    公开(公告)号:US5683938A

    公开(公告)日:1997-11-04

    申请号:US327887

    申请日:1994-10-24

    CPC分类号: H01L21/76879

    摘要: Method for filling contact holes with metals by two-step deposition of selective tungsten layer is disclosed. The selective tungsten thin films are deposited in two steps, thus maximizing the contact filling with tungsten, gaining a stability of metal wires with better step coverage, and enhancing the reliability on semiconductor element.

    摘要翻译: 公开了通过选择性钨层的两步沉积来用金属填充接触孔的方法。 选择性钨薄膜以两个步骤沉积,从而最大化与钨的接触填充,获得更好的步骤覆盖的金属线的稳定性,并提高半导体元件的可靠性。