Method of fabrication of multiple-layer high density substrate
    3.
    发明授权
    Method of fabrication of multiple-layer high density substrate 有权
    多层高密度基板的制造方法

    公开(公告)号:US06187652B1

    公开(公告)日:2001-02-13

    申请号:US09152365

    申请日:1998-09-14

    IPC分类号: H01L2130

    CPC分类号: H05K3/4623

    摘要: A method of fabricating a multi-layer interconnected substrate structure. The inventive method includes forming a multi-layer structure from multiple, pre-fabricated power and/or signal substrates which are laminated together. A drill is then used to form a via through the surface of a ring-type pad down to a desired depth in the multi-layer structure. The via hole is cleaned and then filled with a conductive material. The via so formed between two or more substrates is self-aligned by using the ring pad(s). This contributes to an increased signal routing density compared to conventional methods.

    摘要翻译: 一种制造多层互连衬底结构的方法。 本发明的方法包括从层压在一起的多个预制电源和/或信号基板形成多层结构。 然后使用钻头在多层结构中通过环型垫的表面形成通孔,直到所需的深度。 通孔被清洁,然后用导电材料填充。 通过使用环形垫,在两个或更多个基板之间形成的通孔是自对准的。 与常规方法相比,这有助于提高信号路由密度。

    Chip and board stress relief interposer
    4.
    发明授权
    Chip and board stress relief interposer 失效
    芯片和板应力消除插入器

    公开(公告)号:US6050832A

    公开(公告)日:2000-04-18

    申请号:US130871

    申请日:1998-08-07

    摘要: An interposer structure permits a differential transverse displacement of contact pads on opposite sides of the interposer to reduce thermal stresses when the interposer is bonded to contact pads of a chip and a substrate with different thermal coefficients of expansion. The effective elasticity of the interposer between top and bottom contact pads of the interposer is facilitated by perforations which define flap-like regions. A flexible trace couples top contact pads to bottom contact pads through a via while permitting substantial transverse relative displacement of the top and bottom contact pads in flap-like regions.

    摘要翻译: 插入器结构允许在插入器的相对侧上的接触焊盘的差异横向位移,以在插入器与不同的热膨胀系数的芯片和衬底的接触焊盘接合时降低热应力。 插入器的顶部和底部接触垫之间的插入件的有效弹性由定义瓣状区域的穿孔促进。 柔性迹线通过通孔将顶部接触焊盘连接到底部接触焊盘,同时允许顶部和底部接触焊盘在翼状区域中的相当大的横向相对位移。