Enhanced electromigration resistance in TSV structure and design
    6.
    发明授权
    Enhanced electromigration resistance in TSV structure and design 有权
    TSV结构和设计中增强的电迁移阻力

    公开(公告)号:US08288270B2

    公开(公告)日:2012-10-16

    申请号:US13397004

    申请日:2012-02-15

    IPC分类号: H01L21/4763

    摘要: The embodiments provide a method for reducing electromigration in a circuit containing a through-silicon via (TSV) and the resulting novel structure for the TSV. A TSV is formed through a semiconductor substrate. A first end of the TSV connects to a first metallization layer on a device side of the semiconductor substrate. A second end of the TSV connects to a second metallization layer on a grind side of the semiconductor substrate. A first flat edge is created on the first end of the TSV at the intersection of the first end of the TSV and the first metallization layer. A second flat edge is created on the second end of the TSV at the intersection of the second end of the TSV and the second metallization layer. On top of the first end a metal contact grid is placed, having less than eighty percent metal coverage.

    摘要翻译: 这些实施例提供了一种用于减少包含硅通孔(TSV)的电路中的电迁移的方法以及用于TSV的所得新颖结构。 通过半导体衬底形成TSV。 TSV的第一端连接到半导体衬底的器件侧上的第一金属化层。 TSV的第二端连接到半导体衬底的研磨侧的第二金属化层。 在TSV的第一端和第一金属化层的交叉点的TSV的第一端上形成第一平坦边缘。 在TSV的第二端和第二金属化层的交叉点的TSV的第二端上形成第二平坦边缘。 在第一端的顶部放置金属接触网格,金属覆盖率低于百分之八十。

    ENHANCED ELECTROMIGRATION RESISTANCE IN TSV STRUCTURE AND DESIGN
    8.
    发明申请
    ENHANCED ELECTROMIGRATION RESISTANCE IN TSV STRUCTURE AND DESIGN 有权
    TSV结构和设计中的增强电阻率

    公开(公告)号:US20120199983A1

    公开(公告)日:2012-08-09

    申请号:US13397004

    申请日:2012-02-15

    IPC分类号: H01L23/522 H01L21/768

    摘要: The embodiments provide a method for reducing electromigration in a circuit containing a through-silicon via (TSV) and the resulting novel structure for the TSV. A TSV is formed through a semiconductor substrate. A first end of the TSV connects to a first metallization layer on a device side of the semiconductor substrate. A second end of the TSV connects to a second metallization layer on a grind side of the semiconductor substrate. A first flat edge is created on the first end of the TSV at the intersection of the first end of the TSV and the first metallization layer. A second flat edge is created on the second end of the TSV at the intersection of the second end of the TSV and the second metallization layer. On top of the first end a metal contact grid is placed, having less than eighty percent metal coverage.

    摘要翻译: 这些实施例提供了一种用于减少包含硅通孔(TSV)的电路中的电迁移的方法以及用于TSV的所得新颖结构。 通过半导体衬底形成TSV。 TSV的第一端连接到半导体衬底的器件侧上的第一金属化层。 TSV的第二端连接到半导体衬底的研磨侧的第二金属化层。 在TSV的第一端和第一金属化层的交叉点的TSV的第一端上形成第一平坦边缘。 在TSV的第二端和第二金属化层的交叉点的TSV的第二端上形成第二平坦边缘。 在第一端的顶部放置金属接触网格,金属覆盖率低于百分之八十。