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    • 2. 发明授权
    • Semiconductor device and method of manufacturing the same
    • 半导体装置及其制造方法
    • US08030204B2
    • 2011-10-04
    • US12217932
    • 2008-07-10
    • Jin-Ho ParkGil-Heyun ChoiSang-Woo LeeHo-Ki Lee
    • Jin-Ho ParkGil-Heyun ChoiSang-Woo LeeHo-Ki Lee
    • H01L21/4763
    • H01L23/485H01L21/28562H01L21/76846H01L21/76865H01L27/10891H01L2924/0002H01L2924/00
    • In a method of forming a wiring structure for a semiconductor device, an insulation layer is formed on a semiconductor substrate on which a plurality of conductive structures is positioned. An upper surface of the insulation layer is planarized and spaces between the conductive structures are filled with the insulation layer. The insulation layer is partially removed from the substrate to form at least one opening through which the substrate is partially exposed. A residual metal layer is formed on a bottom and a lower portion of the sidewall of the at least one opening and a metal nitride layer is formed on the residual metal layer and an upper sidewall of the opening with a metal material. Accordingly, an upper portion of the barrier layer can be prevented from being removed in a planarization process for forming the metal plug.
    • 在形成半导体器件的布线结构的方法中,在其上定位有多个导电结构的半导体衬底上形成绝缘层。 绝缘层的上表面被平坦化,并且导电结构之间的空间被绝缘层填充。 绝缘层从衬底部分地移除以形成至少一个开口,衬底通过该开口被部分暴露。 在所述至少一个开口的侧壁的底部和下部形成残余金属层,并且在所述残余金属层和所述开口的上侧壁上用金属材料形成金属氮化物层。 因此,可以防止在用于形成金属插塞的平坦化处理中去除阻挡层的上部。