Printed circuit board structure having a layer at one of its surfaces for dissipating heat by convection
    123.
    发明公开
    Printed circuit board structure having a layer at one of its surfaces for dissipating heat by convection 审中-公开
    具有在一个表面上的层,其用于通过对流散热的印刷电路板结构

    公开(公告)号:EP1715732A2

    公开(公告)日:2006-10-25

    申请号:EP06008023.1

    申请日:2006-04-18

    Abstract: A printed circuit board structure includes a signal reference layer (340) exposed at the surface of the printed circuit board (300). Through the large-area copper material of the signal reference layer (340) having a good heat conduction properties, the heat generated by thermal devices (360) located on the opposite surface of the printed circuit board (300), can be dissipated by convection in the environment surrounding the printed circuit board (300) to achieve a good heat dissipation effect.

    Abstract translation: 的印刷电路板结构包括在所述印刷电路板(300)的表面露出的信号参考层(340)。 通过具有良好导热特性的信号的参考层(340)的大面积的铜材料,通过位于印刷电路板(300)的相对的表面上的热装置(360)产生的热量可以通过对流消散 在环境周围的印刷电路板(300),以达到良好的散热效果。

    High density multilayer printed circuit board
    126.
    发明公开
    High density multilayer printed circuit board 失效
    多层电路板的高密度。

    公开(公告)号:EP0186485A2

    公开(公告)日:1986-07-02

    申请号:EP85309399.5

    申请日:1985-12-23

    CPC classification number: H05K1/116 H05K3/429 H05K2201/09327 H05K2201/09454

    Abstract: A high density multilayer printed circuit board comprising signal layers (C), electric source layers (B), and ground layers (G), with insulating layers arranged between the signal layers and the electric source layers, between the electric source layers and the ground layers, and between the ground layers and the signal layers. Conductor portions (5a. 5b, 5c) forming through holes (6a, 6b, 6c) are opened in a perpendicular direction to the signal layers, electric source layers, and ground layers. The conductor portions are electrically connected to the signal layers and/or the electric source layers, and/or the ground layers, through lands (3a, 3b, 3c) thereof, the connections of the lands being substantially equally distributed among the conductor portions.

    PRINTED BOARD
    128.
    发明申请
    PRINTED BOARD 审中-公开

    公开(公告)号:US20180235076A1

    公开(公告)日:2018-08-16

    申请号:US15737876

    申请日:2016-07-04

    Abstract: An objective of the present invention is to provide a printed board being capable of suppressing EMI emissions from power supply wirings. To accomplish the objective, a printed board of the present invention includes a plurality of ground layers disposed in a printed board, a power supply layer put between the plurality of the ground layers, and through holes disposed along at least periphery of the printed board and connecting the plurality of the ground layers, wherein the through holes are disposed at intervals according to a wavelength corresponding to a maximum frequency of electromagnetic waves to be suppressed.Further, a printed board of the present invention includes a power supply layer disposed in a printed board and put between ground layers above and below the power supply layers, and a plurality of through holes connecting the ground layers above and below the power supply layers, wherein the plurality of the through holes are disposed at and near the power supply layer and are spaced apart at intervals according to a wavelength corresponding to a maximum frequency of electromagnetic waves to be suppressed.

    MULTILAYER SUBSTRATE
    129.
    发明申请

    公开(公告)号:US20180177040A1

    公开(公告)日:2018-06-21

    申请号:US15840598

    申请日:2017-12-13

    Inventor: Makoto YOSHIDA

    Abstract: A multilayer substrate includes plural layers of circuit patterns. Each circuit pattern includes a ground conductor surrounding a wiring region provided with a conductive wiring pattern. Each ground conductor includes a slit connecting between the outside of the multilayer substrate and the wiring region. In the multilayer substrate, the slit of the ground conductor provided at one of adjacent two layers of the circuit patterns and the slit of the ground conductor provided at the other circuit pattern are formed at positions not overlapping with each other. That is, these slits are formed at such positions that a view in an upper-to-lower direction is blocked. The shape of the slit of each ground conductor is in such a shape that a view from an end side of the multilayer substrate to a wiring region side is blocked.

    MULTILAYER WIRING BOARD
    130.
    发明申请
    MULTILAYER WIRING BOARD 有权
    多层接线板

    公开(公告)号:US20140133115A1

    公开(公告)日:2014-05-15

    申请号:US13922349

    申请日:2013-06-20

    Inventor: Daisuke IGUCHI

    Abstract: A multilayer wiring board includes a signal electrode, a first power supply electrode, and a ground electrode, which are connected to a first element that outputs a signal, an electrode connected to a second element that receives the signal, a ground layer that serves as a return path for a return current of the signal, a first power supply layer that is disposed adjacent to the ground layer with a dielectric layer interposed therebetween and supplies electric power to the first element, and a second power supply layer that is provided independently of the first power supply layer and supplies electric power to the second element. The first power supply layer causes the return current to return to the first element through the first power supply electrode as a displacement current between the ground layer and the first power supply layer.

    Abstract translation: 多层布线板包括信号电极,第一电源电极和接地电极,它们连接到输出信号的第一元件,连接到接收信号的第二元件的电极,用作 用于所述信号的返回电流的返回路径,与所述接地层相邻设置有电介质层并且向所述第一元件提供电力的第一电源层和与所述第一电源层独立地设置的第二电源层, 第一电源层并且向第二元件供电。 第一电源层使返回电流通过第一电源电极返回到第一元件,作为接地层和第一电源层之间的位移电流。

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