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    • 7. 发明申请
    • ATTACHING PASSIVE COMPONENTS BETWEEN LAYERS OF A PCB
    • 连接PCB层之间的被动组件
    • WO2008105980A1
    • 2008-09-04
    • PCT/US2007/088951
    • 2007-12-27
    • FLEXTRONICS AP, LLCGRAYDON, BhretSHU, William Kuang-hue
    • GRAYDON, BhretSHU, William Kuang-hue
    • H01L23/58
    • H05K1/184H05K1/113H05K1/186H05K3/3442H05K3/4046H05K2201/10583H05K2201/10636Y02P70/611Y10T29/49126Y10T29/4913
    • A pre-drilled hole, providing a passageway between an upper and a lower surface of a printed circuit board layer, receives a passive component, for example a resistor or a capacitor. In one embodiment the component is cylindrical, with an electrically conductive contact point at each end. The hole diameter is approximately the same as the diameter of the cylindrical component. The hole is similar to a via in a printed circuit board, except that the hole is not plated through (such would cause an electrical short). Electrically conductive lines are provided to the openings of the hole on the upper and the lower surfaces of the PCB. The area of the exposed end of the cylindrical component and the termination of the conducting line is less than the area of a surface mounted component equivalent to the cylindrical component. In some embodiments the hole and inserted component are located directly below a pin pad for a surface mounted device, for example an integrated circuit, providing the equivalent of zero wire and line lengths with no net increase in printed circuit board area.
    • 在印刷电路板层的上表面和下表面之间提供通道的预钻孔接收无源部件,例如电阻器或电容器。 在一个实施例中,部件是圆柱形的,在每个端部具有导电接触点。 孔直径与圆柱形部件的直径大致相同。 该孔与印刷电路板中的通孔类似,不同之处在于孔不通电(这将导致电气短路)。 导电线设置在PCB的上表面和下表面上的孔的开口处。 圆柱形部件的露出端的面积和导线的终端小于与圆柱形部件相当的表面安装部件的面积。 在一些实施例中,孔和插入部件直接位于用于表面安装器件(例如集成电路)的针焊盘的正下方,提供零线和线长度的等效线,而印刷电路板面积没有增加。