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    • 3. 发明公开
    • Sealing of pinholes in electroless metal coatings
    • Abdichtung von Nadelstichporen在stromlos abgeschiedenen Metallbeschichtungen
    • EP2284295A2
    • 2011-02-16
    • EP10170298.3
    • 2010-07-21
    • General Electric Company
    • Kool, Lawrence BernardGiorni, EugenioGray, Dennis MichaelSorbo, FrancescoTysoe, Steven Alfred
    • C23C18/18H01L21/768
    • The present invention provides a method for sealing pinholes in an electroless metal coating, said method comprising: (a) coating a substrate with an electroless metal coating layer to provide a coated article comprising an electroless metal coating in contact with the surface of the substrate, said electroless metal coating being characterized by the presence of pinhole imperfections which allow fluid communication between the substrate and the environment; (b) applying a layer of a curable epoxy sealant over the electroless metal coating layer and filling the pinhole imperfections; (c) curing the curable epoxy sealant to provide a cured epoxy overcoating layer; and (d) removing a substantial portion of the cured epoxy overcoating layer to provide an article comprising an electroless metal coating which is substantially free of pinhole imperfections allowing fluid communication between the substrate and the environment.
    • 本发明提供了一种用于在无电金属涂层中密封针孔的方法,所述方法包括:(a)用无电金属涂层涂覆基底,以提供包括与基底表面接触的无电金属涂层的涂覆制品, 所述无电金属涂层的特征在于存在允许衬底和环境之间的流体连通的针孔缺陷; (b)在无电金属涂层上涂一层可固化的环氧密封剂并填充针孔缺陷; (c)固化可固化环氧密封剂以提供固化的环氧树脂涂层; 和(d)去除大部分固化的环氧树脂外涂层以提供包含无电金属涂层的制品,其基本上没有针孔缺陷,从而允许衬底和环境之间的流体连通。