Method of filling through-holes
    1.
    发明公开
    Method of filling through-holes 审中-公开
    Verfahren zumFüllenvonDurchgangslöchern

    公开(公告)号:EP2778260A2

    公开(公告)日:2014-09-17

    申请号:EP14159759.1

    申请日:2014-03-14

    Abstract: The methods inhibit or reduce dimpling and voids during copper electroplating of through-holes with flash copper layers in substrates such as printed circuit boards. An acid solution containing reaction products of aromatic heterocyclic nitrogen compounds and epoxy-containing compounds is applied to the through-holes of the substrate followed by filling the through-holes with copper using a copper electroplating bath which includes additives such as brighteners and levelers.

    Abstract translation: 该方法在诸如印刷电路板的基板中的具有闪蒸铜层的通孔的铜电镀期间抑制或减少凹坑和空隙。 将包含芳族杂环氮化合物和含环氧化合物的反应产物的酸性溶液施加到基材的通孔,然后使用包括添加剂如增白剂和均化剂的铜电镀浴将铜填充通孔。

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