Resin multilayer substrate
    3.
    发明授权

    公开(公告)号:US12052818B2

    公开(公告)日:2024-07-30

    申请号:US17898548

    申请日:2022-08-30

    Abstract: A resin multilayer substrate includes a multilayer body including resin base-material layers laminated in a thickness direction and a circuit conductor therein, an end-surface ground conductor provided directly on each end surface of the multilayer body in the thickness direction, an adhesion layer on a side surface of the multilayer body, and a side-surface ground conductor on the adhesion layer. The end-surface and side-surface ground conductors are made of a ground conductor material with a coefficient of thermal expansion whose difference from a coefficient of thermal expansion of the resin base-material layers in a plane direction is smaller than a difference from a coefficient of thermal expansion of the resin base-material layers in the thickness direction. The adhesion layer is made of a material with higher adhesiveness to the side surface of the multilayer body than adhesiveness of the ground conductor material.

    CIRCUIT BOARD ASSEMBLY AND ELECTRONIC DEVICE

    公开(公告)号:US20240074042A1

    公开(公告)日:2024-02-29

    申请号:US18494849

    申请日:2023-10-26

    Abstract: The technology of this application relates to a circuit board assembly and an electronic device. The circuit board assembly is applied to the electronic device, and the circuit board assembly includes a circuit board carrying a large-sized chip and a substrate. The substrate is disposed on a side that is of the circuit board and that faces away from the chip, and is connected to the circuit board. In this application, a deformation manner of the circuit board assembly is designed, to effectively reduce impact of a stress generated by deformation of the substrate on self-deformation of the circuit board, and improve a long-term temperature cycle fatigue life of a solder joint between the chip and the circuit board.

    Mounting Assembly With a Heatsink
    9.
    发明申请

    公开(公告)号:US20190254157A1

    公开(公告)日:2019-08-15

    申请号:US16341997

    申请日:2017-10-12

    Applicant: CPT GROUP GMBH

    Inventor: AURELIAN KOTLAR

    Abstract: A mounting assembly includes an electronic component mounted on an upper surface of a circuit board and having at least one electrical connector and a thermal pad provided on a lower surface of the component. The circuit board is mounted on a heatsink and provided with an opening beneath the thermal pad of the component. The heatsink has a heatsink extension which extends through the circuit board and is spatially separated therefrom. A thermal interface material is provided to ensure an electrically insulating thermal connection between the thermal pad and the heatsink extension.

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