Seal ring structure with improved cracking protection and reduced problems
    29.
    发明授权
    Seal ring structure with improved cracking protection and reduced problems 有权
    密封环结构具有改进的开裂保护和减少的问题

    公开(公告)号:US08643147B2

    公开(公告)日:2014-02-04

    申请号:US11933931

    申请日:2007-11-01

    IPC分类号: H01L23/544

    摘要: An integrated circuit structure includes a lower dielectric layer; an upper dielectric layer over the lower dielectric layer; and a seal ring. The seal ring includes an upper metal line in the upper dielectric layer; a continuous via bar underlying and abutting the upper metal line, wherein the continuous via bar has a width greater than about 70 percent of a width of the upper metal line; a lower metal line in the lower dielectric layer; and a via bar underlying and abutting the lower metal line. The via bar has a width substantially less than a half of a width of the lower metal line.

    摘要翻译: 集成电路结构包括下介电层; 在下介电层上的上电介质层; 和密封环。 密封环包括在上介电层中的上金属线; 连续的通孔条,其下面并邻接上部金属线,其中所述连续通孔条具有大于所述上部金属线宽度的约70%的宽度; 下介电层中的下金属线; 以及位于下金属线下方并邻接的通孔条。 通孔棒具有基本上小于下金属线宽度的一半的宽度。

    Protective seal ring for preventing die-saw induced stress
    30.
    发明授权
    Protective seal ring for preventing die-saw induced stress 有权
    用于防止模锯引起的应力的保护密封环

    公开(公告)号:US08334582B2

    公开(公告)日:2012-12-18

    申请号:US12347026

    申请日:2008-12-31

    IPC分类号: H01L23/544

    摘要: A semiconductor chip includes a semiconductor substrate; a plurality of low-k dielectric layers over the semiconductor substrate; a first passivation layer over the plurality of low-k dielectric layers; and a second passivation layer over the first passivation layer. A first seal ring is adjacent to an edge of the semiconductor chip, wherein the first seal ring has an upper surface substantially level to a bottom surface of the first passivation layer. A second seal ring is adjacent to the first seal ring and on an inner side of the semiconductor chip than the first seal ring. The second seal ring includes a pad ring in the first passivation layer and the second passivation layer. A trench ring includes at least a portion directly over the first seal ring. The trench ring extends from a top surface of the second passivation layer down to at least an interface between the first passivation layer and the second passivation layer.

    摘要翻译: 半导体芯片包括半导体衬底; 半导体衬底上的多个低k电介质层; 在所述多个低k电介质层上的第一钝化层; 以及在所述第一钝化层上的第二钝化层。 第一密封环邻近半导体芯片的边缘,其中第一密封环具有基本上平坦于第一钝化层的底表面的上表面。 第二密封环与第一密封环相邻,并且在半导体芯片的内侧与第一密封环相邻。 第二密封环包括在第一钝化层和第二钝化层中的焊盘环。 沟槽环包括直接在第一密封环上的至少一部分。 沟槽环从第二钝化层的顶表面延伸到至少第一钝化层和第二钝化层之间的界面。