Method of measuring dielectric constant of PCB for RIMM
    21.
    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

    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。