Dual damascene flowable oxide insulation structure and metallic barrier
    9.
    发明授权
    Dual damascene flowable oxide insulation structure and metallic barrier 失效
    双镶嵌可流动氧化物绝缘结构和金属屏障

    公开(公告)号:US06221780B1

    公开(公告)日:2001-04-24

    申请号:US09408351

    申请日:1999-09-29

    IPC分类号: H01L21311

    摘要: A method and structure for protecting a flowable oxide insulator in a semiconductor by oxidizing sidewalls of the FOX insulator, optionally nitridizing the oxidized FOX sidewalls, and then covering all surfaces of a trough or plurality of troughs in the FOX insulator, including the sidewalls, with a conductive secondary protective layer. In a multiple layer damascene structure, the surface of the FOX insulator is also oxidized, an additional oxide layer is deposited thereon, and a nitride layer deposited on the oxide layer. Then steps are repeated to obtain a comparable damascene structure. The materials can vary and each damascene layer may be either a single damascene or a dual damascene layer.

    摘要翻译: 一种通过氧化FOX绝缘体的侧壁来保护半导体中的可流动的氧化物绝缘体的方法和结构,可选地将氧化的FOX侧壁氮化,然后覆盖包括侧壁在内的FOX绝缘体中的槽或多个槽的所有表面, 导电二级保护层。 在多层镶嵌结构中,FOX绝缘体的表面也被氧化,在其上沉积另外的氧化物层,并且沉积在氧化物层上的氮化物层。 然后重复步骤以获得可比较的镶嵌结构。 材料可以变化,并且每个镶嵌层可以是单镶嵌层或双镶嵌层。