Multi-layer printed circuit board wiring layout and method for manufacturing the same
    71.
    发明申请
    Multi-layer printed circuit board wiring layout and method for manufacturing the same 失效
    多层印刷电路板布线及其制造方法

    公开(公告)号:US20060108680A1

    公开(公告)日:2006-05-25

    申请号:US11285334

    申请日:2005-11-22

    Abstract: A multi-layer printed circuit board (PCB) includes a first wire layer, a middle layer above the first wire layer, a second wire layer above the middle layer, and a slanting via formed in the middle layer and the second wire layer. The manufacturing method includes the steps of providing a first wire layer and forming a first wiring on the first wire layer, forming a middle layer on the first wire layer, forming a second wire layer on the middle layer, forming a slanting via in the middle layer and the second wire layer wherein the direction of the slanting via is not orthogonal to the first and the second wire layers, forming a second wiring on the second wire layer by an etching method, and forming an electroplated layer in the via to connect the first wiring and the second wiring.

    Abstract translation: 多层印刷电路板(PCB)包括第一布线层,第一布线层之上的中间层,中间层上方的第二布线层和形成在中间层和第二布线层中的倾斜孔。 该制造方法包括以下步骤:在第一布线层上形成第一布线层并形成第一布线,在第一布线层上形成中间层,在中间层上形成第二布线层,在中间层形成倾斜孔 层和第二线层,其中倾斜通孔的方向不与第一和第二线层正交,通过蚀刻方法在第二线层上形成第二布线,并且在通孔中形成电镀层以连接 第一布线和第二布线。

    Methods for making plated through holes usable as interconnection wire or probe attachments

    公开(公告)号:US07024763B2

    公开(公告)日:2006-04-11

    申请号:US10723269

    申请日:2003-11-26

    Abstract: Methods are provided for making plated through holes usable for inserting and attaching connector probes. In a first method, a curved plated through hole is formed by bonding curved etchable wires to a first substrate, plating the wires with a non-etchable conductive material, encasing the plated wires with a dielectric material to form a second substrate, planing the second substrate to expose the etchable wire, and etching the wires to leave plated through holes. In a second method, wires coated with a first etchable layer are initially bonded to a substrate, a second non-etchable plating layer is then applied over the first layer, and the first layer is etched away leaving plated through holes with wires disposed inside. In a third embodiment, a layer of masking material is initially deposited on a substrate and etched to form holes which are filled with a sacrificial fill material, the masking material is then removed, the fill material plated, grinding is performed to remove some plating to expose the fill material, and the fill material is then etched away leaving plated attachment wells. Probes may be attached to the plated through holes or attachment wells to create resilient spring contacts to form a wafer probe card assembly. A twisted tube plated through hole structure is formed by supporting twisted sacrificial wires coated with the plating material in a substrate, and later etching away the wires.

    Floating interposer
    77.
    发明授权
    Floating interposer 有权
    浮动插值器

    公开(公告)号:US06774315B1

    公开(公告)日:2004-08-10

    申请号:US09577457

    申请日:2000-05-24

    Abstract: A flexible, compliant layer of a single low modulus material for connecting a chip die directly to a circuit card without encapsulation. The flexible compliant layer provides stress relief caused by CTE thermal mismatch in chip die and circuit card. An array of copper plated vias are formed in said compliant layer with each via terminating on opposing surfaces of the layer in copper pads. Rather than copper, other metals, such as gold or nickel, may also be used. An array of holes may be positioned between said array of vias to provide additional resiliency. The plated vias may be angled with respect to said opposing surfaces to allow additional vertical and horizontal stress relief. Connection of the pads on one surface to high melt C-4 solder balls or columns on a chip die results in solder filled vias. Low melt solder connection of the pads on the other surface to a circuit card allows non-destructive rework of the cards.

    Abstract translation: 用于将芯片裸片直接连接到电路卡而不封装的单个低模量材料的柔性兼容层。 灵活的柔性层提供了芯片和电路卡中CTE热失配引起的应力消除。 在所述顺应层中形成镀铜通孔的阵列,每个通孔终止于铜衬垫的相对表面上。 而不是铜,也可以使用其他金属,例如金或镍。 一组孔可以位于所述通孔阵列之间以提供额外的弹性。 电镀通孔可以相对于所述相对的表面成角度,以允许额外的垂直和水平应力释放。 将一个表面上的焊盘与芯片模具上的高熔点C-4焊球或柱的连接导致焊料填充的通孔。 将另一个表面上的焊盘的低熔点焊接连接到电路卡允许卡的非破坏性返修。

    Method for manufacturing a probe
    79.
    发明授权
    Method for manufacturing a probe 失效
    探针制造方法

    公开(公告)号:US5513430A

    公开(公告)日:1996-05-07

    申请号:US293365

    申请日:1994-08-19

    Abstract: A probe card (40, 55) having probe card probes (36, 56) and a method for fabricating the probe card probes (36, 56). A layer of resist (23) is formed on a plating base (21). The layer of resist (23) is exposed to radiation (32) and developed to provide angled, tapered openings (33) exposing portions of the plating base (22). An electrically conductive material is electroplated on the exposed portions of the plating base (22) and fills the angled, tapered openings (33). The layer of resist (23) and portions of the plating base (22) between the electroplated conductive material are removed. The electrically conductive material forms the probe card probes (36) which are angled and tapered. In addition, the compliant probe card probes (56) may be stair-step shaped.

    Abstract translation: 具有探针卡探针(36,56)的探针卡(40,55)和用于制造探针卡探针(36,56)的方法。 在电镀基体(21)上形成有抗蚀剂层(23)。 抗蚀剂层(23)暴露于辐射(32)并显影以提供倾斜的锥形开口(33),暴露电镀基底(22)的部分。 导电材料电镀在电镀基座(22)的露出部分上并填充有角度的锥形开口(33)。 去除了电镀层(23)和电镀基底(22)在电镀导电材料之间的部分。 导电材料形成了成角度和锥形的探针卡探头(36)。 此外,兼容的探针卡探针(56)可以是台阶形状。

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