COAXIAL THROUGH-SILICON VIA
    8.
    发明申请
    COAXIAL THROUGH-SILICON VIA 有权
    同轴通过硅

    公开(公告)号:US20110095435A1

    公开(公告)日:2011-04-28

    申请号:US12607098

    申请日:2009-10-28

    IPC分类号: H01L23/48 H01L21/768

    摘要: A through-silicon via (TSV) structure forming a unique coaxial or triaxial interconnect within the silicon substrate. The TSV structure is provided with two or more independent electrical conductors insulated from another and from the substrate. The electrical conductors can be connected to different voltages or ground, making it possible to operate the TSV structure as a coaxial or triaxial device. Multiple layers using various insulator materials can be used as insulator, wherein the layers are selected based on dielectric properties, fill properties, interfacial adhesion, CTE match, and the like. The TSV structure overcomes defects in the outer insulation layer that may lead to leakage. A method of fabricating such a TSV structure is also described.

    摘要翻译: 硅通孔(TSV)结构在硅衬底内形成独特的同轴或三轴互连。 TSV结构设置有两个或更多个与另一个绝缘的独立电导体和与衬底绝缘的独立电导体。 电导体可以连接到不同的电压或接地,使得可以将TSV结构作为同轴或三轴装置进行操作。 使用各种绝缘材料的多层可用作绝缘体,其中根据介电性能,填充性能,界面粘合性,CTE匹配等来选择层。 TSV结构克服了外绝缘层中可能导致泄漏的缺陷。 还描述了制造这种TSV结构的方法。