Removal of dielectric oxides
    7.
    发明授权
    Removal of dielectric oxides 失效
    去除介电氧化物

    公开(公告)号:US06200891B1

    公开(公告)日:2001-03-13

    申请号:US09133537

    申请日:1998-08-13

    IPC分类号: H01L214763

    CPC分类号: H01L21/31111

    摘要: Oxides such as those commonly used in interlevel dielectrics may be removed employing a liquid composition containing a fluoride-containing compound and an organic solvent. Preferred compositions are substantially nonaqueous and include an anhydride. Improved methods for selective removal of oxides, especially for removal of silicon oxides where pre-exposed (or conductive metal - containing) features are present, where metal (conductive metal - contaimg) features are to be exposed by the desired oxide removal, or where the silcon oxide otherwise contacts metal (or conductive metal - containing) features are provided.

    摘要翻译: 可以使用含有含氟化合物和有机溶剂的液体组合物来除去在层间电介质中常用的那些氧化物。 优选的组合物基本上是非水的并且包括酸酐。 改进的选择性去除氧化物的方法,特别是用于去除其中预暴露(或含导电金属)特征的氧化硅,其中金属(导电金属 - 接枝)特征将通过所需的氧化物去除而暴露,或其中 另外提供了氧化锡氧化物接触金属(或含导电金属)特征。

    METHOD FOR KINETICALLY CONTROLLED ETCHING OF COPPER
    10.
    发明申请
    METHOD FOR KINETICALLY CONTROLLED ETCHING OF COPPER 失效
    用于动态控制铜蚀刻的方法

    公开(公告)号:US20080286701A1

    公开(公告)日:2008-11-20

    申请号:US11749800

    申请日:2007-05-17

    IPC分类号: G03C5/58 C09K13/00

    摘要: An etching composition, particularly for kinetically controlled etching of copper and copper alloy surfaces; a process for etching copper and copper alloys, particularly for etching at high rates to provide uniform and smooth, isotropic surfaces; an etched copper or copper alloy surface obtained by the process; and a process for generating copper or copper alloy electrical interconnects or contact pads. The etching composition and etching processes provide a smooth, isotropic fast etch of copper and copper alloys for semiconductor fabrication and packaging.

    摘要翻译: 蚀刻组合物,特别用于铜和铜合金表面的动态控制蚀刻; 蚀刻铜和铜合金的方法,特别是用于高速蚀刻以提供均匀和光滑的各向同性表面的方法; 通过该方法获得的蚀刻铜或铜合金表面; 以及用于产生铜或铜合金电互连或接触焊盘的工艺。 蚀刻组合物和蚀刻工艺提供用于半导体制造和封装的铜和铜合金的平滑,各向同性的快速蚀刻。