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34 条记录 (耗时 0.017 秒)

    VERFAHREN UND VORRICHTUNG ZUM PRÜFEN EINES SCHALTKREISES
    2.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUM PRÜFEN EINES SCHALTKREISES 审中-公开
    方法和设备测试电路

    公开(公告)号：EP2954338A1

    公开(公告)日：2015-12-16

    申请号：EP14703032.4

    申请日：2014-02-05

    申请人： Giesecke & Devrient GmbH

    发明人： FINKENZELLER, Klaus ,  BALDISCHWEILER, Michael

    IPC分类号： G01R31/315 ,  G01R31/28

    摘要： A method for testing a circuit (20) designed for contactless data communication, which comprises an antenna (22) and an electronic component (24) coupled to the antenna (22), therefore comprises the following steps: generation (S1) of a magnetic alternating field of a field strength and arrangement (S2) of the circuit (20) within the alternating field range. The electronic circuit (20) is then excited by means of an energy pulse (S3). In a further step, an oscillation of the circuit (20) in response to the excitation of the circuit by the energy pulse is detected (S4). The detected oscillation of the circuit (20) is finally evaluated (S5), in particular with regard to a self-resonant frequency of the circuit (20).

    METHOD AND SYSTEM FOR LOCALIZATION OF OPEN DEFECTS IN ELECTRONIC DEVICES WITH A DC SQUID BASED RF MAGNETOMETER
    3.
    发明公开
    METHOD AND SYSTEM FOR LOCALIZATION OF OPEN DEFECTS IN ELECTRONIC DEVICES WITH A DC SQUID BASED RF MAGNETOMETER 审中-公开
    的方法和系统用于电子器件的开路缺陷与甲RF磁强计ON DC-SQUID基ISOLATION

    公开(公告)号：EP2780731A4

    公开(公告)日：2015-11-18

    申请号：EP11875630

    申请日：2011-11-14

    申请人： NEOCERA LLC

    发明人： OROZCO ANTONIO ,  TALANOV VLADIMIR V ,  CAWTHORNE ALFRED BENJAMIN ,  GAGLIOLO NICOLAS ERIC

    IPC分类号： G01R33/035 ,  G01R31/08 ,  G01R31/308 ,  G01R31/315

    CPC分类号： G01R31/088 ,  G01N27/82 ,  G01R31/08 ,  G01R31/308 ,  G01R31/315 ,  G01R33/0356

    摘要： Non-destructive localization of open defects in electronic devices is performed with a DC SQUID based RF magnetometer capable of sensing coherent magnetic fields up to 200 MHz and higher. RF magnetic fields (or RF current) images are correlated to conductive paths layout of the electronic device, and the open defect is pinpointed at a location of RF current disappearance on the current image. The bandwidth limitations associated with transmission line delays between SQUID circuit and readout electronic, as well as with near-field coupling between different parts of the measurement scheme, are overcome by superimposing the RF flux emanating from device under study on the modulation flux to produce at the SQUID output a binary phase modulated RF voltage, which is processed to lock the static flux, and to control modulation regime by producing an AC bias for the RF flux. RF readout electronics is based on a double lock-in through sequential demodulation of the RF component of the output SQUID voltage at the modulation flux frequency ωm and the RF flux frequency ωRF.

    Magnetic sensor for detecting location of short circuit between lead wires of high-density micro-patterns
    5.
    发明公开
    Magnetic sensor for detecting location of short circuit between lead wires of high-density micro-patterns 审中-公开
    用于定位的微图案具有高密度的导体线之间短路的磁传感器

    公开(公告)号：EP1632783A1

    公开(公告)日：2006-03-08

    申请号：EP05291813.3

    申请日：2005-08-31

    申请人： LG ELECTRONICS INC.

    发明人： Jeong, Dae-Hwa ,  Lee, Seung-Min

    IPC分类号： G01R33/035 ,  G01R33/07 ,  G01R33/09 ,  G01R15/20 ,  G09G3/00 ,  G01R31/315 ,  G01R31/02

    CPC分类号： G01R31/315 ,  B82Y25/00 ,  G01R15/148 ,  G01R15/202 ,  G01R31/02 ,  G01R33/0358 ,  G01R33/07 ,  G01R33/09 ,  G01R33/093

    摘要： The present invention relates to a sensor, which detects the short circuit between high-density integrated lead wires formed on various boards, such as used in a flat panel display, in a non-contact manner, wherein an electric field is blocked by a conductor.
    According to the present invention, the present invention is advantageous in that it greatly improves detection performance and increases the capability to detect short circuit defects at the time of detecting a magnetic field when an electromotive force, caused by the induction of an electric field, is induced at a magnetic sensor, as in the case of a flat panel display, so that defects in metal patterns can be rapidly detected and corrected at an early stage of a manufacturing process, in cooperation with other defect testers, such as an external shape tester, thus remarkably reducing reworking costs.

    摘要翻译： 本发明涉及一种传感器，其检测形成在各个板，彩色高密度集成引线间的短路：例如在平板显示器中使用，以非接触方式，电场的worin被导体遮挡 ， 。根据本发明，本发明是有利的，这样做是极大地提高检测性能和增加了检测短路缺陷的能力在检测磁场时电动势，通过电场的感应造成的，是时间 感应在磁传感器，如在平板显示器的情况下，所以没在金属图案缺陷可以被迅速地检测，并在在制造过程的早期阶段修正，与其它缺陷的测试，颜色合作：如关于外部形状测试仪 ，从而显着地降低了再加工的成本。

    FAULT LOCATION CALCULATING TRAVELING WAVE ARRIVAL TIME
    9.
    发明公开
    FAULT LOCATION CALCULATING TRAVELING WAVE ARRIVAL TIME 审中-公开
    BERECHNUNG EINER WANDERWELLEN-ANKUNFTSZEIT MIT FEHLERORTUNG

    公开(公告)号：EP3047287A1

    公开(公告)日：2016-07-27

    申请号：EP14843786.6

    申请日：2014-09-16

    申请人： Schweitzer Engineering Laboratories, Inc.

    发明人： SCHWEITZER, Edmund O. III ,  MYNAM, Mangapathirao Venkata ,  GUZMAN-CASILLAS, Armando ,  LEE, Tony J. ,  SKENDZIC, Veselin ,  KASZTENNY, Bogdan Z. ,  WHITEHEAD, David E.

    IPC分类号： G01R31/08 ,  G01R31/11 ,  G01R31/315

    CPC分类号： G01R31/088 ,  G01R19/2513 ,  G01R31/085 ,  G01R31/11 ,  H02H7/265

    摘要： A location of a fault in an electric power delivery system may be detected using traveling waves instigated by the fault. The time of arrival of the traveling wave may be calculated using the peak of the traveling wave. To determine the time of arrival of the peak of the traveling wave, estimates may be made of the time of arrival, and a parabola may be fit to filtered measurements before and after the estimated peak. The maximum of the parabola may be the time of arrival of the traveling wave. Dispersion of the traveling wave may also be corrected using an initial location of the fault and a known rate of dispersion of the electric power delivery system. Time stamps may be corrected using the calculated dispersion of the traveling wave.

    摘要翻译： 可以使用由故障引起的行波来检测电力输送系统中的故障的位置。 可以使用行波的峰值来计算行波的到达时间。 为了确定行波峰值的到达时间，可以估计到达时间，并且抛物线可以适合估计峰值之前和之后的滤波测量。 抛物线的最大值可能是行进波的到达时间。 还可以使用故障的初始位置和电力输送系统的已知的分散速率来校正行波的色散。 可以使用所计算的行波的色散校正时间标记。