Tin alloy electroplating compositions and methods
    2.
    发明公开
    Tin alloy electroplating compositions and methods 有权
    锡合金电镀组合物和方法

    公开(公告)号:EP1467004A1

    公开(公告)日:2004-10-13

    申请号:EP04251946.2

    申请日:2004-04-01

    IPC分类号: C25D3/60

    CPC分类号: C25D3/60 H01L2224/11

    摘要: Disclosed are electrolyte compositions for depositing a tin alloy on a substrate. The electrolyte compositions include tin ions, ions of one or more alloying metals, an acid, a thiourea derivative, and an additive selected from alkanol amines, polyethylene imines, alkoxylated aromatic alcohols, and combinations thereof. Also disclosed are methods of depositing a tin alloy on a substrate and methods of forming an interconnect bump on a semiconductor device.

    摘要翻译: 公开了用于在基底上沉积锡合金的电解质组合物。 电解质组合物包含锡离子,一种或多种合金金属的离子,酸,硫脲衍生物和选自烷醇胺,聚乙烯亚胺,烷氧基化芳族醇及其组合的添加剂。 还公开了在衬底上沉积锡合金的方法以及在半导体器件上形成互连凸块的方法。