MULTI-LAYER CIRCUIT SUBSTRATE MANUFACTURING METHOD AND MULTI-LAYER CIRCUIT SUBSTRATE
    3.
    发明申请
    MULTI-LAYER CIRCUIT SUBSTRATE MANUFACTURING METHOD AND MULTI-LAYER CIRCUIT SUBSTRATE 审中-公开
    多层电路基板制造方法及多层电路基板

    公开(公告)号:US20090032285A1

    公开(公告)日:2009-02-05

    申请号:US11814698

    申请日:2005-01-27

    IPC分类号: H05K3/46 H05K1/14 H05K1/00

    摘要: A method of manufacturing a multilayered circuit board includes the steps of: manufacturing a laminated body by laminating a prepreg of a predetermined thickness on at least one surface of a double-sided circuit board having a grounding link and a signal wiring patterned on both surfaces thereof; and applying heat and pressure to the laminated body and completing a layered structure in which the signal wiring is laid inside the prepreg at a boundary between the double-sided circuit board and the prepreg, wherein prepreg sheets of a predetermined thickness are used in a completed layered structure so that a thickness of a prepreg of the double-sided circuit board is smaller than a distance between a surface of the prepreg on a side not opposed to the double-sided circuit board and the signal wiring laid inside the prepreg.

    摘要翻译: 一种制造多层电路板的方法包括以下步骤:通过在具有接地链路的双面电路板和在其两个表面上图案化的信号布线的至少一个表面层压预定厚度的预浸料来制造层压体 ; 并且对层压体施加热和压力,并且完成在双面电路板和预浸料坯之间的边界处将信号布线放置在预浸料坯内部的层状结构,其中预定厚度的预浸料片材用于完成 使得双面电路板的预浸料坯的厚度小于与双面电路板不相对的一侧上的预浸料坯的表面与布置在预浸料坯内部的信号线之间的距离。

    Method of producing a circuit board
    7.
    发明授权
    Method of producing a circuit board 失效
    电路板的制造方法

    公开(公告)号:US06691409B2

    公开(公告)日:2004-02-17

    申请号:US10280964

    申请日:2002-10-25

    IPC分类号: H01K300

    摘要: A circuit board is configured so as to include not less than two wiring layers, an insulator layer for electric insulation between the wiring layers, and an inner-via-hole conductive member provided in the insulator layer in a thickness direction of the insulator layer, for electric connection between the wiring layers. The insulator layer is made of a composite material containing an organic resin and a material having a smaller thermal expansion coefficient than that of the organic resin, and includes a surface part, a core part, and a surface part laminated in the stated order, the surface part having a high content of the organic resin, the core part having a low content of the organic resin. The wiring layers have a land portion that is connected with the inner-via-hole conductive member, the land portion being embedded so as to be substantially in contact with the core part, and the inner-via-hole conductive member has a thickness substantially equal to a thickness of the core part. According to this configuration, a part of the metal foil is embedded in the insulator layer so as to be in contact with the core layer. Therefore, this makes it possible to provide a circuit board in which portions of the conductive material can be selectively compressed, and which hence is capable of ensuring stable connection between layers.

    摘要翻译: 电路板被构造成在布线层之间包括不少于两个布线层,用于电绝缘的绝缘体层和在绝缘体层的厚度方向上设置在绝缘体层中的内通孔导电构件, 用于布线层之间的电连接。 绝缘体层由包含有机树脂和热膨胀系数小于有机树脂的材料的复合材料制成,并且包括以所述顺序层压的表面部分,芯部分和表面部分, 表面部分具有高含量的有机树脂,芯部分的有机树脂含量低。 所述布线层具有与所述内通孔导电部件连接的台面部,所述接合部嵌入以与所述芯部大体接触,所述内通孔导电部件的厚度基本上 等于芯部的厚度。 根据该结构,将金属箔的一部分嵌入到绝缘体层中以与芯层接触。 因此,能够提供能够选择性地压缩导电材料的部分的电路基板,由此能够确保层之间的稳定的连接。

    Multilayer wiring substrate and manufacturing method of multilayer wiring substrate
    8.
    发明授权
    Multilayer wiring substrate and manufacturing method of multilayer wiring substrate 失效
    多层布线基板及多层布线基板的制造方法

    公开(公告)号:US08604350B2

    公开(公告)日:2013-12-10

    申请号:US13143490

    申请日:2011-02-22

    IPC分类号: H05K1/09 H05K1/11 H01K3/10

    摘要: A multilayer wiring board includes an insulating resin layer, wirings laid on their respective opposite surfaces of the insulating resin layer, and a via-hole conductor for electrically connecting the wirings. The via-hole conductor includes metal and resin portions. The metal portion includes first metal regions including a joined unit made of copper particles for connecting the wirings, second metal regions mainly composed of, for example, tin, a tin-copper alloy, or a tin-copper intermetallic compound, and third metal regions mainly composed of bismuth and in contact with the second metal regions. The copper particles forming the joined unit are in plane contact with one another to form plane contact portions, and the second metal regions at least partially are in contact with the first metal regions.

    摘要翻译: 多层布线板包括绝缘树脂层,布置在其绝缘树脂层的相应相对表面上的布线,以及用于电连接布线的通孔导体。 通孔导体包括金属和树脂部分。 金属部分包括第一金属区域,其包括由用于连接布线的铜颗粒形成的接合单元,主要由例如锡,锡 - 铜合金或锡 - 铜金属间化合物构成的第二金属区域和第三金属区域 主要由铋组成并与第二金属区域接触。 形成接合单元的铜粒子彼此平面接触以形成平面接触部分,并且第二金属区域至少部分地与第一金属区域接触。