Method of forming an interconnect
    1.
    发明授权
    Method of forming an interconnect 失效
    形成互连的方法

    公开(公告)号:US5950099A

    公开(公告)日:1999-09-07

    申请号:US629442

    申请日:1996-04-09

    CPC分类号: H01L21/28512

    摘要: A method for fabricating a damascene interconnect includes the steps of depositing a metal layer of the surface of an insulating film; etching the metal layer and the insulating film to form an insulating groove; depositing a silicon layer on an upper surface on the metal layer and on each sidewall and a bottom of the insulating groove; annealing the silicon layer and the metal layer to form a silicide layer; implanting ions in the bottom of the insulating groove; and depositing an interconnect material in the insulating groove using selective chemical vapor deposition. In one embodiment, the metal layer is a titanium layer, the interconnect material is tungsten, and the implanted ions are arsenic ions.

    摘要翻译: 一种用于制造镶嵌互连的方法包括沉积绝缘膜表面的金属层的步骤; 蚀刻金属层和绝缘膜以形成绝缘槽; 在金属层的上表面和绝缘槽的每个侧壁和底部上沉积硅层; 退火硅层和金属层以形成硅化物层; 将离子注入绝缘槽的底部; 以及使用选择性化学气相沉积在所述绝缘槽中沉积互连材料。 在一个实施例中,金属层是钛层,互连材料是钨,注入的离子是砷离子。