Search routine for 2-point electrical tester
    2.
    发明授权
    Search routine for 2-point electrical tester 失效
    2点电气测试仪的搜索程序

    公开(公告)号:US06255827B1

    公开(公告)日:2001-07-03

    申请号:US09302944

    申请日:1999-04-30

    IPC分类号: H01H3102

    CPC分类号: G01R1/06705

    摘要: A system for locating electrically conductive contact points on an integrated circuit semiconductor substrate utilizes capacitance and line continuity measurements to control and direct the movement of a two-point probe tester in order to locate and precisely align each test probe with designated contact points. The system is capable of testing for continuity conditions or defects and perform other related electrical measurements.

    摘要翻译: 用于在集成电路半导体衬底上定位导电接触点的系统利用电容和线路连续性测量来控制和指导两点探针测试仪的移动,以便将每个测试探针与指定的接触点定位和精确对准。 该系统能够测试连续性条件或缺陷,并执行其他相关的电气测量。

    Apparatus and method for repairing electronic packages
    3.
    发明授权
    Apparatus and method for repairing electronic packages 失效
    用于修理电子封装的装置和方法

    公开(公告)号:US06713686B2

    公开(公告)日:2004-03-30

    申请号:US10053362

    申请日:2002-01-18

    IPC分类号: H01R1204

    摘要: A multi chip module substrate arranged with repair vias and repair lines extending between repair vias of the chip sites of the module by which repairs can be effected to overcome defects in the module circuits and a method for effecting the repairs of defects in the circuits of this module. A defect can occur in any one of a first signal via, a second signal via, and a circuit line extending between and intended to electrically connect the first signal via and the second signal via. After a defective circuit is identified, the signal vias of the circuit are isolated. Then, the first signal via of the defective circuit is electrically connected to that repair via of the chip site having the first signal via that is connected to that repair via of the chip site having the second signal via and the second signal via of the defective circuit is electrically connected to that repair via of the chip site having the second signal via that is connected to that repair via of the chip site having the first signal via.

    摘要翻译: 多芯片模块基板,其布置有在模块的芯片位置的修复通道之间延伸的修理通孔和修复线,通过该维修线可以进行修理以克服模块电路中的缺陷,以及用于实现该电路中的缺陷的修复的方法 模块。 在第一信号通孔,第二信号通孔以及在第一信号通孔和第二信号通孔之间延伸并且用于电连接第一信号通孔的电路线中的任何一个中可能会发生缺陷。 识别出故障电路后,电路的信号通孔被隔离。 然后,故障电路的第一信号通路经由具有第一信号的芯片位置的修复通孔经由与具有第二信号通路的芯片位置的修复通路连接,并且具有缺陷电路的第二信号通孔 电路经由具有第二信号的芯片位置的修复通路经由与经由具有第一信号通孔的芯片位置的修复通路相连接。

    Method and circuit for electrical testing of isolation resistance of large capacitance network

    公开(公告)号:US06573728B2

    公开(公告)日:2003-06-03

    申请号:US09942292

    申请日:2001-08-29

    IPC分类号: H01H3102

    CPC分类号: G01R31/1227 G01R31/028

    摘要: An apparatus (and method) for testing a DC isolation resistance of a large capacitance network experiencing voltage stress, adds capacitance and resistance to a large resistance network under test, such that the direct current (DC) isolation resistance may be determined without distortion from the alternating current (AC) components of the circuit. The capacitance that is added is determined based on the capacitance of the object, the resistance of the object, and the resistance of the testing apparatus. In one embodiment, because the precise capacitance of the network under test may be unknown, the testing apparatus and method may utilize an additional large capacitor designed to obviate small fluctuations in the capacitance of the network.