Multilayer circuit board, process of manufacturing same, board for multilayer circuitry, and electronic apparatus
    1.
    发明授权
    Multilayer circuit board, process of manufacturing same, board for multilayer circuitry, and electronic apparatus 失效
    多层电路板,制造工艺,多层电路板和电子设备

    公开(公告)号:US07170012B2

    公开(公告)日:2007-01-30

    申请号:US11142399

    申请日:2005-06-02

    IPC分类号: H05K1/09

    摘要: A multilayer circuit board including a laminate of at least one insulating layer and at least one wiring layer. The wiring layer is formed by a composite member having a first metal layer and a second metal layer formed on one or both sides of the first metal layer. The first metal layer having a smaller coefficient of thermal expansion than the second metal layer. The second metal layer having a higher electric conductivity than the first metal layer. The insulating layer has a blind via-hole with a bottom provided by a surface of the second metal layer. A layer-to-layer interconnection portion is provided on the surface of the insulating layer and in the blind via-hole and is formed in the blind via-hole to be in contact with the surface of the second metal layer.

    摘要翻译: 包括至少一个绝缘层和至少一个布线层的叠层的多层电路板。 布线层由具有形成在第一金属层的一侧或两侧上的第一金属层和第二金属层的复合构件形成。 第一金属层的热膨胀系数小于第二金属层。 第二金属层的导电率比第一金属层高。 绝缘层具有通过第二金属层的表面设置的底部的盲通孔。 在绝缘层的表面和盲通孔中设置层间互连部,并且形成在盲通孔中,与第二金属层的表面接触。