Through-silicon via structure
    10.
    发明授权
    Through-silicon via structure 有权
    通硅结构

    公开(公告)号:US08405201B2

    公开(公告)日:2013-03-26

    申请号:US12836720

    申请日:2010-07-15

    IPC分类号: H01L23/48

    摘要: A semiconductor substrate has a front surface and a back surface, and a TSV structure is formed to extend through the semiconductor substrate. The TSV structure includes a metal layer, a metal seed layer surrounding the metal layer, a barrier layer surrounding the metal seed layer, and a block layer formed in a portion sandwiched between the metal layer and the metal seed layer. The block layer includes magnesium (Mg), iron (Fe), cobalt (Co), nickel (Ni), titanium (Ti), chromium (Cr), tantalum (Ta), tungsten (W), cadmium (Cd), or combinations thereof.

    摘要翻译: 半导体衬底具有前表面和后表面,并且形成TSV结构以延伸穿过半导体衬底。 TSV结构包括金属层,围绕金属层的金属籽晶层,围绕金属种子层的阻挡层,以及形成在夹在金属层和金属籽晶层之间的部分中的阻挡层。 阻挡层包括镁(Mg),铁(Fe),钴(Co),镍(Ni),钛(Ti),铬(Cr),钽(Ta),钨(W),镉(Cd) 其组合。