Metal line having a multi-layered diffusion layer in a semiconductor device and method for forming the same
    16.
    发明授权
    Metal line having a multi-layered diffusion layer in a semiconductor device and method for forming the same 失效
    在半导体装置中具有多层扩散层的金属线及其形成方法

    公开(公告)号:US07875978B2

    公开(公告)日:2011-01-25

    申请号:US12485473

    申请日:2009-06-16

    IPC分类号: H01L23/48 H01L23/52 H01L29/40

    摘要: A metal line having a multi-layered diffusion layer in a resultant semiconductor device is presented along with corresponding methods of forming the same. The metal line includes an insulation layer, a multi-layered diffusion barrier, and a metal layer. The insulation layer is formed on a semiconductor substrate and has a metal line forming region. The multi-layered diffusion barrier is formed on a surface of the metal line forming region defined in the insulation layer. The diffusion barrier includes a VB2 layer, a CrV layer and a Cr layer. The metal layer is formed on the diffusion barrier which substantially fills in the metal line forming region of the insulation layer to eventually form the metal line.

    摘要翻译: 在所得半导体器件中具有多层扩散层的金属线与其形成方法相对应。 金属线包括绝缘层,多层扩散阻挡层和金属层。 绝缘层形成在半导体衬底上并具有金属线形成区域。 多层扩散阻挡层形成在绝缘层中形成的金属线形成区域的表面上。 扩散阻挡层包括VB2层,CrV层和Cr层。 金属层形成在扩散阻挡层上,其基本上填充在绝缘层的金属线形成区域中,以最终形成金属线。