CIRCUIT BOARD
    12.
    发明申请

    公开(公告)号:US20240407103A1

    公开(公告)日:2024-12-05

    申请号:US18723616

    申请日:2022-12-23

    Abstract: A circuit board according to an embodiment includes a first insulating layer; and a second insulating layer disposed on the first insulating layer and including a cavity; wherein the second insulating layer includes a lower surface of the cavity positioned higher than an upper surface of the first insulating layer, wherein the lower surface of the cavity includes: a plurality of first portions, and a plurality of second portions provided between the plurality of first portions and having a height different from that of the plurality of first portions, and wherein a height difference between a portion having a highest height and a portion having a lowest height of the plurality of first portions is 1 μm or less.

    CIRCUIT BOARD
    14.
    发明公开
    CIRCUIT BOARD 审中-公开

    公开(公告)号:US20230328886A1

    公开(公告)日:2023-10-12

    申请号:US18026917

    申请日:2021-09-17

    CPC classification number: H05K1/111 H05K1/185 H05K1/183 H05K3/4697

    Abstract: A circuit board according to an embodiment includes a first insulating layer; a first circuit pattern disposed on the first insulating layer; and a second insulating layer disposed on the first insulating layer and including a cavity, wherein an upper surface of the first insulating layer includes a first region that does not vertically overlap the cavity; a second region vertically overlapping the cavity; and a boundary region between the first region and the second region, the first circuit pattern includes a first-first circuit pattern disposed on the boundary region of the first insulating layer, the first-first circuit pattern includes a first portion that does not vertically overlap the cavity; and a second portion connected to the first portion and vertically overlapping the cavity, and a thickness of the first portion of the first-first circuit pattern is different from a thickness of the second portion of the first-first circuit pattern.

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