Plating bath composition for immersion plating of gold
    3.
    发明公开
    Plating bath composition for immersion plating of gold 审中-公开
    Plattierungsbadzusammensetzungfürdie Tauchplattierung von Gold

    公开(公告)号:EP2698449A1

    公开(公告)日:2014-02-19

    申请号:EP12180227.6

    申请日:2012-08-13

    IPC分类号: C23C18/54

    CPC分类号: C23C18/54

    摘要: The present invention relates to a cyanide-free aqueous immersion-type plating bath for deposition of gold, comprising gold ions, at least one complexing agent, sulfite ions, thiosulfate ions, and at least one ureylene polymer additive. The gold layer deposited from the plating bath according to the present invention shows a lemon-yellow colour and a sufficient wettability for tin based solder materials.

    摘要翻译: 本发明涉及一种用于沉积金的无氰化合物浸渍型电镀液,其包含金离子,至少一种络合剂,亚硫酸根离子,硫代硫酸根离子和至少一种乙烯基聚合物添加剂。 根据本发明从镀浴沉积的金层显示柠檬黄色和对锡基焊料材料具有足够的润湿性。