Terahertz transmission contactless probing and scanning for signal analysis and fault isolation

    公开(公告)号:US09817028B2

    公开(公告)日:2017-11-14

    申请号:US14866221

    申请日:2015-09-25

    CPC classification number: G01R1/071 G01R1/06772 G01R31/303 G01R31/311

    Abstract: An apparatus comprises a contactless sense probe, an electro optic sensor module, and a test signal emitter circuit. The contactless sense probe includes a photoconductive switch and the signal bandwidth of the photoconductive switch is variable. The test signal emitter circuit configured to apply a test signal to a device under test (DUT) at a first location of the DUT, wherein the test signal includes a test signal frequency. The electro-optic sensor module is coupled to the contactless sense probe and configured to: generate an impulse signal at the contactless sense probe using an optical signal input to the first photoconductive switch; sense the test signal frequency in the impulse signal using the contactless sense probe at a second location of the DUT; and generate an indication of a defect in the DUT when the test signal frequency is undetected in the impulse signal.

    Integrated cable probe design for high bandwidth RF testing

    公开(公告)号:US11226353B2

    公开(公告)日:2022-01-18

    申请号:US16493503

    申请日:2017-03-31

    Abstract: An electrical characterization and fault isolation probe can include a cable, a connector, and a coating over a portion of the cable. The cable can have a first conductor having a first impedance, a second conductor having a second impedance, and a dielectric surrounding the first conductor and electrically isolating the first conductor from the second conductor. The connector can physically couple to, and be in electrical communication with, the cable. The connector can include a first electrical communication pathway and a second electrical communication pathway. The first electrical communication pathway can be electrically isolated from the second electrical communication pathway. The first electrical communication pathway can be in electrical communication with the first conductor. The second electrical communication pathway can be in electrical communication with the second conductor. The connector can have a fifth impedance.

    INTEGRATED CABLE PROBE DESIGN FOR HIGH BANDWIDTH RF TESTING

    公开(公告)号:US20210132113A1

    公开(公告)日:2021-05-06

    申请号:US16493503

    申请日:2017-03-31

    Abstract: An electrical characterization and fault isolation probe can include a cable, a connector, and a coating over a portion of the cable. The cable can have a first conductor having a first impedance, a second conductor having a second impedance, and a dielectric surrounding the first conductor and electrically isolating the first conductor from the second conductor. The connector can physically couple to, and be in electrical communication with, the cable. The connector can include a first electrical communication pathway and a second electrical communication pathway. The first electrical communication pathway can be electrically isolated from the second electrical communication pathway. The first electrical communication pathway can be in electrical communication with the first conductor. The second electrical communication pathway can be in electrical communication with the second conductor. The connector can have a fifth impedance.

    APPARATUS AND METHOD FOR CLASSIFYING AND LOCATING ELECTRICAL FAULTS IN CIRCUITRY

    公开(公告)号:US20180284185A1

    公开(公告)日:2018-10-04

    申请号:US15474674

    申请日:2017-03-30

    Abstract: A die with a transmission circuit, a reception circuit, and a comparison circuit can be provided. The transmission circuit can be configured to transmit a first signal through a first channel at a first transmission rate and a first transmission amplitude. The reception circuit can be in communication with the transmission circuit through the first channel. The reception circuit can receive a second signal at a first reception rate and at a first reception amplitude. The comparison circuit can be in communication with the transmission circuit and the reception circuit. The comparison circuit can be configured to: determine a first rate error value, determine a first amplitude error value, compare the first rate error value with a rate threshold to determine a first rate error occurrence, and compare the first amplitude error value with an amplitude threshold to determine a first amplitude error occurrence.

    Integrated circuit package with test circuitry for testing a channel between dies

    公开(公告)号:US11450613B2

    公开(公告)日:2022-09-20

    申请号:US15933934

    申请日:2018-03-23

    Abstract: Apparatuses, systems and methods associated with integrated circuit packages with integrated test circuitry for testing of a channel between dies are disclosed herein. In embodiments, an integrated circuit (IC) package may include a first die, a second die, and a channel that couples the first die to the second die. The first die may include a transmitter, test circuitry coupled between the transmitter and the channel, wherein the test circuitry is to control charge and discharge of the channel, and a receiver coupled to the channel. The receiver may determine a voltage of the channel during charge and discharge of the channel, and output an indication of the voltage. Other embodiments may be described and/or claimed.

    Method of resonance analysis for electrical fault isolation

    公开(公告)号:US10935593B2

    公开(公告)日:2021-03-02

    申请号:US15857520

    申请日:2017-12-28

    Abstract: A method, system and computer readable medium for determination of distance to an electrical fault within a device. A signal generator excites the device with an electrical input signal. The device comprises an open circuited electrical transmission line. A frequency domain analyzer analyzes part of the signal reflected from the device for determination of the locations of resonant frequency of the signal within the device. A computer calculates the distance to the fault within the device, based on the resonant frequency. The distance to the fault is one quarter wavelength distance into the device at the resonant frequency. A frequency sweeper sweeps the frequency of the input signal and repeated calculation of the distance to the fault made at a plurality of resonant frequencies during the frequency sweep confirms the distance to the fault by convergence of the result of the repeated calculations to substantially the same location.

Patent Agency Ranking