Method of making silicide stop layer in a damascene semiconductor structure
    2.
    发明授权
    Method of making silicide stop layer in a damascene semiconductor structure 有权
    在大马士革半导体结构中制造硅化物阻挡层的方法

    公开(公告)号:US06458679B1

    公开(公告)日:2002-10-01

    申请号:US09780454

    申请日:2001-02-12

    IPC分类号: H01L213205

    摘要: A damascene gate semiconductor structure that is formed utilizing a silicide stop layer. Initially, a gate opening is provided in an insulating layer on a substrate. A first dielectric layer is deposited in the gate opening over the substrate. A silicide stop layer is then deposited in the gate opening over the first silicon layer. A second silicon layer is then deposited in the gate opening over the silicide stop layer. A metal or alloy layer is then deposited over the insulating and the second silicon layer. The damascene semiconductor structure is then temperature treated to react the metal or alloy layer with the second silicon layer to form a silicide layer. Any unreated metal or alloy is then removed from the metal or alloy layer.

    摘要翻译: 利用硅化物停止层形成的镶嵌栅极半导体结构。 首先,在基板上的绝缘层中设置栅极开口。 第一介电层沉积在衬底上的栅极开口中。 然后在第一硅层上的栅极开口中沉积硅化物阻挡层。 然后在硅化物停止层上的栅极开口中沉积第二硅层。 然后在绝缘层和第二硅层上沉积金属或合金层。 然后对镶嵌半导体结构进行温度处理以使金属或合金层与第二硅层反应形成硅化物层。 然后从金属或合金层中除去任何未反应的金属或合金。