WIRING BASE AND ELECTRONIC DEVICE
    2.
    发明公开

    公开(公告)号:US20240074035A1

    公开(公告)日:2024-02-29

    申请号:US18029023

    申请日:2021-09-28

    Abstract: A wiring base includes a base, a signal conductor, and a ground conductor including a first ground conductor. The base includes a first surface, a first region, and a second region. The first region is located near an outer side of the first surface. An external board is mounted in the first region. The second region is other than the first region. The signal conductor extends through a region including the first region of the first surface in a first direction away from the outer side. The first ground conductor is located in the base at a distance from the signal conductor of less than ¼ of a wavelength of a high-frequency signal. The high-frequency signal is transmitted through the signal conductor. The first ground conductor includes a first grid portion at a first location overlapping the first region and at least a portion of the signal conductor.

    Techniques for high-speed signal layer transition

    公开(公告)号:US11889617B1

    公开(公告)日:2024-01-30

    申请号:US17901208

    申请日:2022-09-01

    Applicant: Baidu USA LLC

    Inventor: Zhenwei Yu Yun Ji

    Abstract: A printed circuit board includes first and second surfaces, first and second layers, and first and second vias. The first via extends from a first layer to the second surface and includes a first portion that is on a conductive path between the first layer and the second layer and a second portion that is not on the conductive path. A length of the first portion of the first via is greater than that of the second portion of the first via. The second via extends from the second surface to the second layer. The second via includes a first portion that is on the conductive path between the first layer and the second layer and a second portion that is not on the conductive path. A length of the first portion of the second via is greater than that of the second portion of the second via.

    MULTILAYER STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20230262888A1

    公开(公告)日:2023-08-17

    申请号:US18303648

    申请日:2023-04-20

    Inventor: Hiromichi TANAKA

    Abstract: A multilayer structure having a main surface includes: a first conductor extending in parallel with the main surface; a second conductor extending in parallel with the main surface and disposed at a different position from the first conductor with respect to a thickness direction of the multilayer structure; and a third conductor having a shape extending in at least any direction as seen in a direction perpendicular to the main surface. In a range higher than a lower end of the third conductor and lower than an upper end of the third conductor in the thickness direction of the multilayer structure, at least a part of the first conductor is included and at least a part of the second conductor is included.

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