Printed wiring board and method of manufacturing the same

    公开(公告)号:US10321566B2

    公开(公告)日:2019-06-11

    申请号:US15683138

    申请日:2017-08-22

    Abstract: A printed wiring board according to an aspect of the present invention includes an insulating resin, a plated copper formed on a front surface side of the insulating resin, and a plated copper formed on a back surface side of the insulating resin. The plated copper and the plated copper are electrically connected via a plated copper that fills a through hole penetrating the insulating resin from the front surface side to the back surface side. Furthermore, the through hole includes a conical section whose opening diameter decreases from the front surface side to the back surface side of the insulating resin, and a cylindrical section that communicates with the conical section at a bottom surface of the conical section.

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