Printed wire board and associated mobile terminal
    93.
    发明申请
    Printed wire board and associated mobile terminal 有权
    印刷线路板及相关移动终端

    公开(公告)号:US20050135072A1

    公开(公告)日:2005-06-23

    申请号:US10743527

    申请日:2003-12-22

    CPC classification number: H05K1/0265 H05K3/4641 H05K2201/0352 H05K2201/0358

    Abstract: A multi-layer printed wire board (PWB) structure optimized for improved drop reliability, reliable electrical connections under thermal load, and minimal thickness is provided, along with a mobile terminal, including the PWB. The PWB includes alternating conductive layers and insulative layers. The outermost three layers form an interconnect structure constructed of two conductive layers surrounding an insulative-coated conductive layer. The thicknesses of the various layers are optimized to have an increased resistance to mechanical shock resulting from, for instance, a drop onto a hard surface. In addition, the optimized PWB structure has a minimized thickness and an improved resistance to connection failures resulting from cyclical thermal loads.

    Abstract translation: 提供了一种多层印刷线路板(PWB)结构以及包括PWB在内的移动终端,优化了降低可靠性,热负载下的可靠电气连接和最小厚度。 PWB包括交替的导电层和绝缘层。 最外面的三层形成由围绕绝缘涂覆的导电层的两个导电层构成的互连结构。 各层的厚度被优化以具有增加的抗机械冲击的抵抗力,例如由硬质表面上的液滴引起的机械冲击。 此外,优化的PWB结构具有最小化的厚度和改善的耐循环热负载引起的连接故障。

    Method of constructing a multilayer electric apparatus
    96.
    发明授权
    Method of constructing a multilayer electric apparatus 有权
    构造多层电气设备的方法

    公开(公告)号:US06591490B1

    公开(公告)日:2003-07-15

    申请号:US09743753

    申请日:2001-01-11

    Abstract: A method of constructing a multilayer electric apparatus. The method includes forming a set of conductive features and a plurality of fiducial markings on a first dielectric layer in mutual reference to each other so that their relative positions are known to a first tolerance. Also, a pattern of information corresponding to a desired photoresist exposure pattern for a second layer of the multilayer electric apparatus is stored in a computer readable format. The locations of the fiducial markings on the first layer are measured and the pattern of information for the second layer is altered in correspondence to the measured locations of the fiducial markings. The updated pattern of information is used to control a laser to selectively expose the photoresist on the second layer. Finally, the first and second layers are joined to each other.

    Abstract translation: 一种构造多层电气设备的方法。 该方法包括在第一介电层上相互引用形成一组导电特征和多个基准标记,使得它们的相对位置已知为第一公差。 此外,以计算机可读格式存储对应于多层电气设备的第二层的期望的光致抗蚀剂曝光图案的信息图案。 测量第一层上的基准标记的位置,并且第二层的信息图案对应于基准标记的测量位置而改变。 更新的信息模式用于控制激光器以选择性地暴露第二层上的光致抗蚀剂。 最后,第一和第二层彼此连接。

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