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    • 7. 发明专利
    • Multilayer printed wiring board
    • 多层印刷接线板
    • JP2012039139A
    • 2012-02-23
    • JP2011222696
    • 2011-10-07
    • Ibiden Co Ltdイビデン株式会社
    • NIKI NORIO
    • H05K3/46
    • H05K1/115H05K3/421H05K3/4644H05K2201/0352H05K2201/0394H05K2201/09527H05K2201/09563H05K2201/096H05K2203/0554Y10T29/49124Y10T29/49155Y10T29/49162
    • PROBLEM TO BE SOLVED: To provide a multilayer printed wiring board capable of ensuring excellent connection capability even if a semiconductor element is connected to the board at multiple connection points.SOLUTION: A multilayer printed wiring board 20 comprises: a first resin layer 26-1; first via holes 33-1 formed in the first resin layer; a second resin layer 26-2 disposed on the top surface of the first resin layer; second via holes 33-2 formed in the second resin layer; a core layer 22 disposed on the surface of the first resin layer opposite to the surface on which the second resin layer is disposed; and via holes 42 formed in the core layer. The opening direction of the via holes 33-1 and 33-2 formed in the resin layers 26-1 and 26-2 is reversed to the opening direction of the via holes 42 formed in the core layer 22.
    • 要解决的问题:即使半导体元件在多个连接点处连接到板,也能够提供能够确保优异的连接能力的多层印刷线路板。 解决方案:多层印刷线路板20包括:第一树脂层26-1; 形成在第一树脂层中的第一通孔33-1; 设置在第一树脂层的顶表面上的第二树脂层26-2; 形成在第二树脂层中的第二通孔33-2; 设置在与设置有第二树脂层的表面相对的第一树脂层的表面上的芯层22; 以及形成在芯层中的通孔42。 形成在树脂层26-1,26-2中的通路孔33-1,33-2的开口方向与芯层22中形成的通孔42的开口方向相反。权利要求( C)2012,JPO&INPIT