Wiring board
    161.
    发明授权

    公开(公告)号:US12082346B2

    公开(公告)日:2024-09-03

    申请号:US18175898

    申请日:2023-02-28

    Inventor: Masahiro Kyozuka

    Abstract: A wiring board includes a first insulating layer, a pad formed on one surface of the first insulating layer, a second insulating layer, formed on the one surface of the first insulating layer, and including an opening exposing the pad, and a reinforcing metal layer formed in contact with the first insulating layer, and provided around the pad so as to be separated from the pad in a plan view. The pad is disposed inside the opening without making contact with the second insulating layer. An end, on a side of the first insulating layer, in a portion of an inner side surface of the opening of the second insulating layer makes contact with the reinforcing metal layer, and an end in another portion of the inner side surface of the opening of the second insulating layer makes contact with the one surface of the first insulating layer.

    Printed wiring board and method for manufacturing printed wiring board

    公开(公告)号:US12052819B2

    公开(公告)日:2024-07-30

    申请号:US17707196

    申请日:2022-03-29

    Abstract: A printed wiring board includes a base insulating layer, a conductor layer formed on the base layer and including pads, a solder resist layer formed on the base layer such that the solder resist layer is covering the conductor layer and has openings exposing the pads, and plating bumps formed on the pads such that each plating bump includes a base plating layer formed in a respective one of the openings, an intermediate layer formed on the base plating layer, and a top plating layer formed on the intermediate layer. The plating bumps are formed such that the base plating layer has a side surface including a portion protruding from the solder resist layer, that the intermediate layer has a thickness in a range of 2.7 to 7.0 μm, and that the top plating layer has a hemispherical shape and is covering only an upper surface of the intermediate layer.

    CPU FOR HEATSINK BASED POWER DELIVERY
    164.
    发明公开

    公开(公告)号:US20230337360A1

    公开(公告)日:2023-10-19

    申请号:US17724326

    申请日:2022-04-19

    CPC classification number: H05K1/113 H05K1/0215 H05K2201/09481 H05K2201/093

    Abstract: A CPU includes a processor die and a substrate. The processor die includes first signal contacts, power contacts, and ground contacts. The processor die is affixed and electrically coupled to the substrate on a first surface of the substrate. The substrate routes the first signal contacts to associated second signal contacts on a second surface of the substrate. The substrate further routes a subset of the power contacts to a power pad on the first surface of the substrate, and routes a subset of the ground contacts to a ground pad on the first surface of the substrate.

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