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45 条记录 (耗时 0.015 秒)

    Multi-layer PCB and method for coupling block type multichannel optical signals
    42.
    发明授权
    Multi-layer PCB and method for coupling block type multichannel optical signals 失效
    多层PCB和耦合块式多通道光信号的方法

    公开(公告)号：US06978058B2

    公开(公告)日：2005-12-20

    申请号：US10414921

    申请日：2003-04-16

    申请人： Young-Woo Kim ,  Byoung-Ho Rhee ,  Dek-Gin Yang ,  Young-Sang Cho ,  Kyu-Hyok Yim

    发明人： Young-Woo Kim ,  Byoung-Ho Rhee ,  Dek-Gin Yang ,  Young-Sang Cho ,  Kyu-Hyok Yim

    IPC分类号： H05K3/46 ,  G02B6/36 ,  G02B6/43 ,  G02B6/12

    CPC分类号： G02B6/43 ,  G02B6/3652 ,  G02B6/3676 ,  G02B6/3688 ,  G02B6/3692

    摘要： The present invention discloses a multi-layer Printed Circuit Board (PCB) and method for coupling block type multichannel optical signals, the method including the steps of i) forming one or more first optical via holes to allow one or more first optical signal coupling blocks to be inserted therein, ii) aligning a first optical waveguide and the first optical signal coupling blocks so that the first optical waveguide is interconnected to the first optical signal coupling blocks via an optical signal, iii) attaching a first fixing guide to a base board to fasten the first optical signal coupling blocks, iv) removing the first fixing guide and forming one or more second optical via holes to allow one or more second optical signal coupling blocks to be inserted therein, and v) repeatedly performing steps i) to iv) as many times as a number of layers of the multi-layer PCB.

    摘要翻译： 本发明公开了一种用于耦合块型多通道光信号的多层印刷电路板（PCB）和方法，该方法包括以下步骤：i）形成一个或多个第一光通孔，以允许一个或多个第一光信号耦合块 插入其中，ii）对准第一光波导和第一光信号耦合块，使得第一光波导经由光信号互连到第一光信号耦合块，iii）将第一固定引导件附接到基板 固定第一光信号耦合块，iv）去除第一固定引导件并形成一个或多个第二光通孔，以允许一个或多个第二光信号耦合块插入其中，以及v）重复执行步骤i）至iv ）多层多层PCB的层数。

    Method of measuring dielectric constant of PCB for RIMM
    44.
    发明授权
    Method of measuring dielectric constant of PCB for RIMM 失效
    测量RIMM PCB的介电常数的方法

    公开(公告)号：US06882161B2

    公开(公告)日：2005-04-19

    申请号：US10447348

    申请日：2003-05-28

    申请人： Young-Woo Kim ,  Byoung-Ho Rhee ,  Dek-Gin Yang ,  Young-Sang Cho ,  Dong-Hwan Lee

    发明人： Young-Woo Kim ,  Byoung-Ho Rhee ,  Dek-Gin Yang ,  Young-Sang Cho ,  Dong-Hwan Lee

    IPC分类号： G01R31/12 ,  G01R27/06 ,  G01R31/08 ,  G01R31/11 ,  G01R37/02

    CPC分类号： G01R27/06

    摘要： Disclosed herein is a method of measuring a dielectric constant of a Printed Circuit Board (PCB) for a Rambus Inline Memory Module (RIMM), which includes the steps of measuring a length of a Rambus product of a PCB, applying an input waveform to the Rambus product at a certain probing position and obtaining a cross point of rising times of the input waveform and an output waveform generated by reflection of the input waveform, obtaining time corresponding to the cross point, and calculating a dielectric constant by substituting the measured length of the Rambus product and the obtained time for corresponding variables of a dielectric constant calculating equation.

    摘要翻译： 本文公开了一种测量Rambus在线存储器模块（RIMM）的印刷电路板（PCB）的介电常数的方法，其包括以下步骤：测量PCB的Rambus积的长度，将输入波形应用于 Rambus产品在一定的探测位置，并获得输入波形的上升时间的交叉点和通过输入波形的反射产生的输出波形，获得与交叉点相对应的时间，并且通过将测量的长度 Rambus乘积和相应变量的获得时间的介电常数计算方程。