PRE-TREATMENT PROCESS FOR ELECTROLESS PLATING
    8.
    发明申请
    PRE-TREATMENT PROCESS FOR ELECTROLESS PLATING 有权
    电镀镀层预处理工艺

    公开(公告)号:US20160348246A1

    公开(公告)日:2016-12-01

    申请号:US15112205

    申请日:2015-01-14

    摘要: The present invention discloses a process for electroless plating of a metal or metal alloy onto copper features of an electronic device such as a printed circuit board which suppresses undesired skip plating and extraneous plating. The process comprises the steps i) providing such a substrate, ii) activating of the copper features with noble metal ions; iii) removing excessive noble metal ions or precipitates formed thereof with an aqueous pre-treatment composition comprising an acid, a source for halide ions and an additive selected from the group consisting of thiourea, thiourea derivatives and polymers comprising thiourea groups, and iv) electroless plating of a metal or metal alloy layer.

    摘要翻译: 本发明公开了一种将金属或金属合金化学镀在电子器件例如印刷电路板的铜特征上的方法,该印刷电路板抑制不期望的跳镀和外部电镀。 该方法包括以下步骤:i)提供这种基材,ii)用贵金属离子活化铜特征; iii)用含有酸,卤离子源和选自硫脲,硫脲衍生物和包含硫脲基团的聚合物的添加剂的含水预处理组合物除去过量的贵金属离子或其形成的沉淀物,以及iv)无电解 电镀金属或金属合金层。

    METAL STRIPPING ADDITIVE, COMPOSITION CONTAINING THE SAME, AND METHOD FOR STRIPPING METAL BY USING THE COMPOSITION
    10.
    发明申请
    METAL STRIPPING ADDITIVE, COMPOSITION CONTAINING THE SAME, AND METHOD FOR STRIPPING METAL BY USING THE COMPOSITION 有权
    金属剥离添加剂,含有它们的组合物和使用组合物剥离金属的方法

    公开(公告)号:US20160102408A1

    公开(公告)日:2016-04-14

    申请号:US14972790

    申请日:2015-12-17

    发明人: CHING-HSIANG HSU

    摘要: The present invention provides a metal stripping additive, composition containing the same, and method for stripping metal by using the composition. The metal stripping additive comprises a phosphate, a carbonate, and a component selected from at least one of citric acid or a derivative thereof, oxalate or a derivative thereof, malate or a derivative thereof. The metal stripping additive is used with nitric acid as the metal stripping composition of the present invention. The present method has advantages of being capable of stripping various metals, low corrosion, low toxicity, and being applicable under ambient temperature.

    摘要翻译: 本发明提供一种金属剥离添加剂,含有它的组合物,以及通过使用该组合物剥离金属的方法。 金属剥离添加剂包括磷酸盐,碳酸盐和选自柠檬酸或其衍生物,草酸盐或其衍生物,苹果酸盐或其衍生物中的至少一种的组分。 金属剥离添加剂与硝酸一起用作本发明的金属剥离组合物。 本方法具有能够剥离各种金属,低腐蚀性,低毒性,适用于环境温度的优点。