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    • 95. 发明授权
    • Inter-layer interconnection structure for large electrical connections
    • 用于大型电气连接的层间互连结构
    • US07160805B1
    • 2007-01-09
    • US10623082
    • 2003-07-17
    • Peter A. BurkeWilliam K. Barth
    • Peter A. BurkeWilliam K. Barth
    • H01L21/44
    • H01L23/5226H01L23/53238H01L2924/0002H01L2924/00
    • Embodiments of the invention include an electrical interconnection structure for connection to large electrical contacts. The electrical interconnection includes a semiconductor substrate having a conductive pad layer formed thereon. A dielectric layer having a plurality of elongate trenches is formed over the conductive pad layer such that the elongate trenches extend through the dielectric layer to the underlying conductive pad layer. Elongate conductive contacts are formed in the elongate trenches to establish electrical connections to the underlying conductive pad layer. The long axes of the elongate bar trenches can be arranged substantially parallel to the long axes of the slots formed in the copper pad. Alternatively, the long axes of the bar trenches can be arranged transversely to the long axes of the slots formed in the copper pad. In some embodiments, the conductive contacts are formed such that they establish electrical connection with sidewalls of the underlying conductive pad layer. Other embodiments address the methods of manufacturing the electrical interconnection structures of the present invention.
    • 本发明的实施例包括用于连接到大电触头的电互连结构。 电互连包括其上形成有导电焊盘层的半导体衬底。 具有多个细长沟槽的电介质层形成在导电焊盘层上方,使得细长的沟槽延伸通过介电层延伸到下面的导电焊盘层。 在细长的沟槽中形成细长的导电触点以建立与下面的导电焊盘层的电连接。 细长条沟的长轴可以布置成基本上平行于形成在铜垫中的槽的长轴。 或者,条形沟槽的长轴可以横向于形成在铜垫中的槽的长轴布置。 在一些实施例中,导电触点形成为使得它们与下面的导电焊盘层的侧壁建立电连接。 其他实施例涉及制造本发明的电互连结构的方法。