LINER LAYERS FOR METAL INTERCONNECTS
    3.
    发明申请
    LINER LAYERS FOR METAL INTERCONNECTS 审中-公开
    用于金属互连的内层

    公开(公告)号:WO2012087578A2

    公开(公告)日:2012-06-28

    申请号:PCT/US2011063778

    申请日:2011-12-07

    Abstract: Electrical interconnects for integrated circuits and methods of fabrication of interconnects are provided. Devices are provided comprising copper interconnects having metallic liner layers comprising silver and a second component, such as, lanthanum, titanium, tungsten, zirconium, antimony, or calcium. Methods include providing a substrate having a trench or via formed therein, forming a silver alloy layer, comprising silver and a second component selected from the group consisting of lanthanum, titanium, tungsten, zirconium, antimony, and calcium, onto surfaces of the feature, depositing a copper seed layer, and depositing copper into the feature.

    Abstract translation: 提供了用于集成电路的电互连和制造互连的方法。 提供了包括铜互连件的装置,其具有包含银和第二成分(诸如镧,钛,钨,锆,锑或钙)的金属衬里层。 方法包括提供具有在其中形成的沟槽或通孔的衬底,在特征的表面上形成银合金层,其包含银和选自镧,钛,钨,锆,锑和钙的第二组分, 沉积铜种子层,并将铜沉积到特征中。

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