SUBSTRATE, CHIP, CIRCUIT PACKAGE AND FABRICATION PROCESS

    公开(公告)号:US20230262906A1

    公开(公告)日:2023-08-17

    申请号:US17670394

    申请日:2022-02-11

    Inventor: Hui LIU

    Abstract: A substrate, a chip, a circuit package and a process of fabricating a substrate are presented. The substrate is provided between an integrated circuit and a printed circuit board, and comprises a core insulating and a buildup insulating layer. The first plated through hole is operable to provide ground through from the printed circuit board to the integrated circuit. The second plated through hole is operable to provide electrical communication carrying signals or power between the integrated circuit and the printed circuit board through the buildup insulating layers. The first plated through hole is formed in tubular shape defined an outer wall and an inner wall, and the second plated through hole is formed in the inner wall and is insulated with the first plated through hole.

    CIRCUIT BOARD STRUCTURE
    13.
    发明公开

    公开(公告)号:US20230156908A1

    公开(公告)日:2023-05-18

    申请号:US17867624

    申请日:2022-07-18

    Inventor: Shih-Lian Cheng

    Abstract: A circuit board structure includes a substrate, a third dielectric layer, a fourth dielectric layer, a first external circuit layer, a second external circuit layer, a conductive through hole electrically connected to the first and second external circuit layers, a first annular retaining wall surrounding the conductive through hole, and a second annular retaining wall surrounding the conductive through hole. The first annular retaining wall is electrically connected to the first external circuit layer and a first inner circuit layer. The second annular retaining wall is electrically connected to the second external circuit layer and a second inner circuit layer. A first ground circuit, the first annular retaining wall, and the first inner circuit layer define a first ground path surrounding a first signal circuit. A second ground circuit, the second annular retaining wall, and the second inner circuit layer define a second ground path surrounding a second signal circuit.

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