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

    公开(公告)号:US20230189431A1

    公开(公告)日:2023-06-15

    申请号:US17925059

    申请日:2021-05-13

    Inventor: Won Suk JUNG

    Abstract: A circuit board according to an embodiment includes an insulating layer; a second outer circuit pattern disposed on an upper surface of the insulating layer; and a via disposed in the insulating layer and connected to the second outer circuit pattern; wherein the second outer circuit pattern includes: a first pattern embedded in the insulating layer and having a first width; and a second pattern protruding on the upper surface of the insulating layer, having a second width greater than the first width, and connected to the first pattern through the via.

    CIRCUIT BOARD STRUCTURE
    13.
    发明公开

    公开(公告)号:US20230156918A1

    公开(公告)日:2023-05-18

    申请号:US17853933

    申请日:2022-06-30

    Inventor: Shih-Lian Cheng

    CPC classification number: H05K1/116 H05K1/0222 H05K2201/09509 H05K2201/0195

    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, a first annular retaining wall, and a second annular retaining wall. The conductive through hole penetrates through the third dielectric layer, a second dielectric layer, and the fourth dielectric layer. The conductive through hole is electrically connected to the first external circuit layer and the second external circuit layer. The first annular retaining wall is disposed in the third dielectric layer, surrounds the conductive through hole, and is electrically connected to the first external circuit layer and the first inner circuit layer. The second annular retaining wall is disposed in the fourth dielectric layer, surrounds the conductive through hole, and connects to the second external circuit layer and the second inner circuit layer electrically.

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