TELESCOPING BLIND VIA IN THREE-LAYER CORE
    1.
    发明申请
    TELESCOPING BLIND VIA IN THREE-LAYER CORE 审中-公开
    通过三层核心引导盲人

    公开(公告)号:WO2005036940A1

    公开(公告)日:2005-04-21

    申请号:PCT/US2004/033012

    申请日:2004-10-08

    Abstract: A multilayer PCB including at least one carrier, wherein the at least one carrier comprises a pseudo three-layer core (110). Each three-layer core (110) includes a first metal layer (120), a first dielectric layer (124), an internal bridge layer (126), a second dielectric layer (125), and a second metal layer (122). The bridge layer includes a plurality of bridge pads (134). Each carrier includes a plurality of interlayer interconnection units (150a, 150n) for interconnecting the first and second metal layers. Each interlayer interconnection unit comprises a pair of opposed blind vias (140, 142) and a bridge pad (134) disposed between, and in electrical contact with, the pair of blind vias.

    Abstract translation: 包括至少一个载体的多层PCB,其中所述至少一个载体包括伪三层芯(110)。 每个三层芯(110)包括第一金属层(120),第一介电层(124),内部桥接层(126),第二介电层(125)和第二金属层(122)。 桥接层包括多个桥接焊盘(134)。 每个载体包括用于互连第一和第二金属层的多个层间互连单元(150a,150n)。 每个层间互连单元包括一对相对的盲孔(140,142)和布置在一对盲孔之间并与之接触的桥接垫(134)。

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