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    • 67. 发明授权
    • Multilayer printed circuit board
    • 多层印刷电路板
    • US08895863B2
    • 2014-11-25
    • US13726827
    • 2012-12-26
    • Denso Corporation
    • Masashi InabaAkito Itou
    • H05K1/00H05K1/16H05K1/11H05K1/18H05K1/02
    • H05K1/0201H05K1/0206H05K1/0207H05K2201/10166H05K2201/10969
    • A multilayer printed circuit board includes an insulating substrate, circuit layers arranged in the insulating substrate, an electronic component, an electrode disposed on the circuit layer exposed from a surface of the insulating substrate and including a soldered portion at which a terminal of the electronic component is soldered, an internal layer conductor disposed on the circuit layer located inside the insulating substrate and defining through holes in a radial manner centering on the soldered portion, a heat releasing conductor disposed on the circuit layer next to the circuit layer on which the internal layer conductor is disposed, and connection vias inserted in the through holes and coupling the electrode and the heat releasing conductor so as to enable a heat transfer between the electrode and the heat releasing conductor. The internal layer conductor and the heat releasing conductor overlap a whole area of the soldered portion.
    • 多层印刷电路板包括绝缘基板,布置在绝缘基板中的电路层,电子部件,设置在从绝缘基板的表面露出的电路层上的电极,并且包括焊接部分,电极部件的端子 焊接,设置在位于绝缘基板内部的电路层上的内部层导体,以以焊接部分为中心的径向方式限定通孔;布置在电路层旁边的放热导体,其中内层 布置导体,并且连接通孔插入到通孔中并联接电极和散热导体,以便能够在电极和放热导体之间传热。 内层导体和散热导体与焊接部分的整个区域重叠。