PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME
    4.
    发明申请
    PRINTED CIRCUIT BOARD AND METHOD OF MANUFACTURING THE SAME 审中-公开
    印刷电路板及其制造方法

    公开(公告)号:US20160374196A1

    公开(公告)日:2016-12-22

    申请号:US15133944

    申请日:2016-04-20

    Abstract: A printed circuit board includes: a first insulating layer; a first circuit layer disposed above the first insulating layer; a second insulating layer disposed above the first insulating layer; a second circuit layer disposed above the second insulating layer and constructed of a photosensitive material; and a protective layer disposed above the second insulating layer and surrounding the second circuit layer, wherein the protective layer includes a tunnel type cavity and exposes a portion of the second circuit layer to an outside environment, and wherein the second insulating layer exposes a portion of the first circuit layer located below the cavity to an outside environment.

    Abstract translation: 印刷电路板包括:第一绝缘层; 设置在所述第一绝缘层上方的第一电路层; 设置在所述第一绝缘层上方的第二绝缘层; 第二电路层,设置在所述第二绝缘层上并由感光材料构成; 以及保护层,其设置在所述第二绝缘层的上方并且围绕所述第二电路层,其中所述保护层包括隧道型腔,并将所述第二电路层的一部分暴露于外部环境,并且其中所述第二绝缘层暴露所述第二绝缘层的一部分 第一电路层位于空腔下面到外部环境。

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