Multilayer wiring substrate with engineering change pads
    61.
    发明授权
    Multilayer wiring substrate with engineering change pads 失效
    多层布线基板与工程更换垫

    公开(公告)号:US4710592A

    公开(公告)日:1987-12-01

    申请号:US875670

    申请日:1986-06-18

    Applicant: Kohji Kimbara

    Inventor: Kohji Kimbara

    Abstract: A multilayer wiring substrate is disclosed which includes a reconfigurable link structure for effecting wiring change. A plurality of pad portions are connected to a link structure through holes on an insulating layer located therebetween which also acts as a solder dam. A gap is present on a portion of the insulating layer through which a portion of the link structure is exposed. By cutting away the portion so exposed, the link structure is divided, and pad portions connected to the divided portions of the link structure become disconnected. An external wire may be selectively soldered to any one pad portion while the insulating layer acts as a soldering dam for preventing flow of solder onto the base wiring substrate section below the link structure. Because the insulating layer acts as a solder dam, the pad portions may be fabricated with materials conducive to solder wettability and severability.

    Abstract translation: 公开了一种多层布线基板,其包括用于实现布线改变的可重构链路结构。 多个焊盘部分通过位于其间的绝缘层上的孔连接到连接结构,其也用作焊接坝。 在绝缘层的一部分存在间隙,通过该部分露出连接结构的一部分。 通过切除暴露的部分,链接结构被分割,并且连接到链接结构的分割部分的焊盘部分断开。 外部导线可以选择性地焊接到任何一个焊盘部分,同时绝缘层用作防止焊料流向连接结构下方的基底布线基板部分上的焊接坝。 由于绝缘层用作焊料坝,焊盘部分可以用有助于焊料润湿性和可分割性的材料制成。

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