METHOD FOR FABRICATING A MICROELECTRONIC CONDUCTOR STRUCTURE
    28.
    发明申请
    METHOD FOR FABRICATING A MICROELECTRONIC CONDUCTOR STRUCTURE 审中-公开
    制造微电子导体结构的方法

    公开(公告)号:US20080160754A1

    公开(公告)日:2008-07-03

    申请号:US11616532

    申请日:2006-12-27

    IPC分类号: H01L21/4763

    摘要: A method for fabricating a microelectronic structure includes forming a via aperture through a dielectric layer located over a substrate having a conductor layer therein, to expose the conductor layer. The conductor layer typically comprises a copper containing material. The method also includes etching the conductor layer to form a recessed conductor layer prior to etching a trench aperture within the dielectric layer. The trench aperture is typically contiguous with the via aperture to form a dual damascene aperture. By etching the conductor layer after forming the via aperture and before forming the trench aperture, such a dual damascene aperture is formed with enhanced dimensional integrity.

    摘要翻译: 一种制造微电子结构的方法包括:通过位于其中具有导体层的衬底上的电介质层形成通孔,以露出导体层。 导体层通常包含含铜材料。 该方法还包括在蚀刻介电层内的沟槽孔之前蚀刻导体层以形成凹陷的导体层。 沟槽孔通常与通孔邻接以形成双镶嵌孔。 通过在形成通孔之后蚀刻导体层,并且在形成沟槽孔之前,形成具有增强的尺寸完整性的这种双镶嵌孔。