WIRING BOARD AND METHOD FOR MANUFACTURING THE SAME
    1.
    发明申请
    WIRING BOARD AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    接线板及其制造方法

    公开(公告)号:US20140110153A1

    公开(公告)日:2014-04-24

    申请号:US13995088

    申请日:2013-01-11

    IPC分类号: H05K1/09 H05K3/00 H05K1/11

    摘要: A wiring board includes an insulating resin layer, wirings, and a via-hole conductor. The wirings are disposed through the insulating resin layer therebetween and formed of copper foils. The via-hole conductor penetrates through the insulating resin layer and electrically connects the wirings together. The via-hole conductor includes a resin portion and a metal portion containing copper, tin, and bismuth. The metal portion includes a first metal region including a link of copper particles, a second metal region including, as a main component, at least one of tin, a tin-copper alloy, and a tin-copper intermetallic compound, and a third metal region including bismuth as a main component. The copper particles partially include a plane-to-plane contact with a roughened surface of the copper foil, and the second metal region is partially formed on a surface of the link and on the roughened surface of the copper foil.

    摘要翻译: 布线板包括绝缘树脂层,布线和通孔导体。 布线通过其间的绝缘树脂层布置并由铜箔形成。 通孔导体穿过绝缘树脂层并将布线电连接在一起。 通孔导体包括树脂部分和含有铜,锡和铋的金属部分。 金属部分包括包括铜颗粒的连接的第一金属区域,包括锡,锡 - 铜合金和锡 - 铜金属间化合物中的至少一种作为主要成分的第二金属区域,以及第三金属区域 区域包括铋作为主要成分。 铜颗粒部分地包括与铜箔的粗糙表面的平面接触,并且第二金属区域部分地形成在连接件的表面和铜箔的粗糙表面上。