Copper-plating liquid, plating method and plating apparatus
    1.
    发明授权
    Copper-plating liquid, plating method and plating apparatus 失效
    镀铜液,电镀法和电镀装置

    公开(公告)号:US06709563B2

    公开(公告)日:2004-03-23

    申请号:US09893624

    申请日:2001-06-29

    IPC分类号: C25D502

    摘要: There is provided a copper-plating liquid free from an alkali metal and a cyanide which, when used in plating of a substrate having an outer seed layer and fine recesses of a high aspect ratio, can reinforce the thin portion of the seed layer and can embed copper completely into the depth of the fine recesses. The plating liquid contains divalent copper ions and a completing agent, and an optional pH adjusting agent.

    摘要翻译: 提供了不含碱金属和氰化物的镀铜液,当用于具有外籽晶层和高纵横比的微细凹槽的基片时,可以加强种子层的薄部分,并且可以 将铜完全嵌入精细凹槽的深度。电镀液含有二价铜离子和完成剂,以及任选的pH调节剂。

    Electroplating method
    10.
    发明授权
    Electroplating method 有权
    电镀法

    公开(公告)号:US09376758B2

    公开(公告)日:2016-06-28

    申请号:US13311020

    申请日:2011-12-05

    IPC分类号: C25D5/18 C25D7/12

    CPC分类号: C25D5/18 C25D7/123

    摘要: An electroplating method can securely and efficiently fill a plated metal into deep high-aspect ratio vias in a bottom-up manner without producing defects in the plated metal. The electroplating method includes: immersing a substrate, having vias formed in a surface, and an anode in a plating solution in a plating tank, the anode being disposed opposite the surface of the substrate; and intermittently passing a plating current at a constant current value between the substrate and the anode in such a manner that the supply and the stop of the plating current are repeated, and that the proportion of a current supply time during which the plating current is supplied increases with the progress of plating, thereby filling a plated metal into the vias.

    摘要翻译: 电镀方法可以以自下而上的方式可靠且有效地将电镀金属填充到深高纵横比的通孔中,而不会在电镀金属中产生缺陷。 电镀方法包括:在基板的表面上设置阳极,将具有在表面中形成的通孔的基板和阳极浸入电镀槽中的电镀液中; 并以这样的方式间歇地通过基板和阳极之间的恒定电流值的电镀电流,使得电镀电流的供应和停止重复,并且提供电镀电流的电流供应时间的比例 随着电镀的进行而增加,从而将电镀金属填充到通孔中。