Method for polishing aluminum/copper and titanium in damascene structures
    1.
    发明授权
    Method for polishing aluminum/copper and titanium in damascene structures 有权
    在镶嵌结构中抛光铝/铜和钛的方法

    公开(公告)号:US08623767B2

    公开(公告)日:2014-01-07

    申请号:US13846126

    申请日:2013-03-18

    IPC分类号: H01L21/302

    摘要: The invention provides compositions and methods for planarizing or polishing a substrate. The composition comprises an abrasive consisting of alumina particles optionally treated with a polymer, an α-hydroxycarboxylic acid, an oxidizing agent that oxidizes at least one metal, polyacrylic acid, optionally, a calcium-containing compound, optionally, a biocide, optionally, a pH adjusting agent, and water. The method uses the composition to chemically-mechanically polish a substrate.

    摘要翻译: 本发明提供了用于平坦化或抛光基材的组合物和方法。 该组合物包含由任选用聚合物氧化的氧化铝颗粒,α-羟基羧酸,氧化至少一种金属的氧化剂,任选的含钙化合物,任选的含钙化合物,任选的杀生物剂,任选地, pH调节剂和水。 该方法使用组合物对基材进行化学机械抛光。