Printed circuit board
    21.
    发明专利
    Printed circuit board 有权
    印刷电路板

    公开(公告)号:JP2013225544A

    公开(公告)日:2013-10-31

    申请号:JP2012096100

    申请日:2012-04-19

    Inventor: ISONO HIROSHI

    Abstract: PROBLEM TO BE SOLVED: To provide a printed circuit board that achieves high-density wiring while reducing radiation noise by having a configuration ensuring a return current path for a signal current.SOLUTION: A printed circuit board includes a first semiconductor package mounted on a first surface layer of a printed wiring board and a second semiconductor package mounted on a second surface layer of the printed wiring board, and transmits a bus signal from the first semiconductor package to the second semiconductor package. A first bus wiring path from signal terminals on an inner peripheral side of the first semiconductor package to signal terminals on an inner peripheral side of the second semiconductor package through vias and the second surface layer, and a second bus wiring path from signal terminals on an outer peripheral side of the first semiconductor package to signal terminals on an outer peripheral side of the second semiconductor package through vias and the second surface layer are provided in the printed circuit board.

    Abstract translation: 要解决的问题:提供一种印刷电路板,其通过具有确保信号电流的返回电流路径的配置来降低辐射噪声来实现高密度布线。解决方案:印刷电路板包括安装在第一个 印刷电路板的表面层和安装在印刷线路板的第二表面层上的第二半导体封装,并且将总线信号从第一半导体封装传输到第二半导体封装。 从第一半导体封装的内周侧的信号端子到通过通孔和第二表面层的第二半导体封装的内周侧的信号端子的第一总线布线路径,以及从第二半导体封装 第一半导体封装的外周侧通过通路将信号端子连接到第二半导体封装的外周侧,第二表面层设置在印刷电路板中。

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