Wiring board and manufacturing method for same

    公开(公告)号:US11871525B2

    公开(公告)日:2024-01-09

    申请号:US17439494

    申请日:2019-12-17

    Abstract: A wiring board according to the present disclosure has at least a structure in which a wiring conductor layer is layered on a surface of an insulating layer containing particles of silica, and some particles of silica among the particles of silica contained in the insulating layer are partially exposed on the surface of the insulating layer. The wiring conductor layer includes a seed layer in contact with the insulating layer and a plated conductor layer formed on a surface of the seed layer. At a contact surface between the exposed portions of the particles of silica and the seed layer, an amorphous layer of silica derived from the particles of silica and an amorphous layer of metal derived from metal forming the seed layer are present.

    WIRING BOARD
    12.
    发明公开
    WIRING BOARD 审中-公开

    公开(公告)号:US20230337361A1

    公开(公告)日:2023-10-19

    申请号:US18028951

    申请日:2021-09-14

    Inventor: Hidetoshi YUGAWA

    CPC classification number: H05K1/116 H05K2201/096 H05K2201/0209

    Abstract: A wiring board according to the present disclosure includes a first insulation layer including a first surface, a land located on the first insulation layer and including a second surface, a second insulation layer located at the first surface of the first insulation layer and including a via hole extending over the second surface of the land, and a via-hole electrical conductor located in the via hole. The land includes a plurality of recessed portions on the second surface, and at least one recessed portion selected from the plurality of recessed portions includes a buffer body containing resin. The via-hole electrical conductor is in contact with the second surface of the land and the buffer body.

Patent Agency Ranking