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FR2374650A1 - Detecteur de defauts de conducteurs de circuits imprimes - Google Patents

Detecteur de defauts de conducteurs de circuits imprimes

Info

Publication number
FR2374650A1
FR2374650A1 FR7726487A FR7726487A FR2374650A1 FR 2374650 A1 FR2374650 A1 FR 2374650A1 FR 7726487 A FR7726487 A FR 7726487A FR 7726487 A FR7726487 A FR 7726487A FR 2374650 A1 FR2374650 A1 FR 2374650A1
Authority
FR
France
Prior art keywords
printed circuit
fault detector
circuit conductor
conductor fault
conductors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7726487A
Other languages
English (en)
Other versions
FR2374650B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Genrad Inc
Original Assignee
Genrad Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Genrad Inc filed Critical Genrad Inc
Publication of FR2374650A1 publication Critical patent/FR2374650A1/fr
Application granted granted Critical
Publication of FR2374650B1 publication Critical patent/FR2374650B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
    • G01R31/2805—Bare printed circuit boards

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

L'invention concerne un nouveau procédé de détection des courts-circuits sur des ensembles de conducteurs. Le procédé consiste à faire passer un courant alternatif d'excitation dans les ensembles à conducteurs, à contrôler et à déterminer la répartition spatiale de la phase du champ produit par ce courant d'excitation au voisinage des conducteurs Ce procédé est applicable aux plaquettes de circuits imprimés et aux ensembles de conducteurs semblables.
FR7726487A 1976-12-16 1977-08-31 Detecteur de defauts de conducteurs de circuits imprimes Granted FR2374650A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/751,103 US4186338A (en) 1976-12-16 1976-12-16 Phase change detection method of and apparatus for current-tracing the location of faults on printed circuit boards and similar systems

Publications (2)

Publication Number Publication Date
FR2374650A1 true FR2374650A1 (fr) 1978-07-13
FR2374650B1 FR2374650B1 (fr) 1983-01-07

Family

ID=25020496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726487A Granted FR2374650A1 (fr) 1976-12-16 1977-08-31 Detecteur de defauts de conducteurs de circuits imprimes

Country Status (6)

Country Link
US (1) US4186338A (fr)
JP (1) JPS6037900B2 (fr)
CA (1) CA1084634A (fr)
DE (1) DE2749529A1 (fr)
FR (1) FR2374650A1 (fr)
GB (1) GB1578798A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459980A1 (fr) * 1979-06-23 1981-01-16 Membrain Ltd Procedes et appareils de localisation de defauts dans des circuits electroniques

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377782A (en) * 1979-06-23 1983-03-22 Membrain Limited Fault location methods and apparatus using current pulse injection
US4345201A (en) * 1979-12-20 1982-08-17 Membrain Limited Fault location system with enhanced noise immunity
DE3049286C2 (de) * 1980-12-29 1983-11-10 Vsesojuznyj naučno-issledovatel'skij institut elektroizmeritel'nych priborov, Leningrad Einrichtung zur kontaktlosen Kontrolle elektrischer Impulssignale
US4517511A (en) * 1981-10-16 1985-05-14 Fairchild Camera And Instrument Corporation Current probe signal processing circuit employing sample and hold technique to locate circuit faults
US4459693A (en) * 1982-01-26 1984-07-10 Genrad, Inc. Method of and apparatus for the automatic diagnosis of the failure of electrical devices connected to common bus nodes and the like
US4525665A (en) * 1982-08-06 1985-06-25 Smalley Daniel S Induction furnace monitor
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
DE3231598A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Verfahren und vorrichtung zur elektrischen pruefung von mikroverdrahtungen
US4697143A (en) * 1984-04-30 1987-09-29 Cascade Microtech, Inc. Wafer probe
DE3729500A1 (de) * 1987-09-03 1989-03-16 Siemens Ag Vorrichtung zur fehlersuche in elektronischen schaltungen
US5006808A (en) * 1989-03-21 1991-04-09 Bath Scientific Limited Testing electrical circuits
US5640092A (en) * 1990-09-27 1997-06-17 Motazed; Behnam Electromagnetic pipe mapper for accurate location and depth determination
US5194816A (en) * 1990-10-19 1993-03-16 Westinghouse Electric Corp. Method and apparatus for locating electrical shorts between concealed conductive objects
JPH055772A (ja) * 1990-10-30 1993-01-14 Electron Packaging Co プリント回路板試験システム
US5124660A (en) * 1990-12-20 1992-06-23 Hewlett-Packard Company Identification of pin-open faults by capacitive coupling through the integrated circuit package
US5625292A (en) * 1990-12-20 1997-04-29 Hewlett-Packard Company System for measuring the integrity of an electrical contact
US5254953A (en) * 1990-12-20 1993-10-19 Hewlett-Packard Company Identification of pin-open faults by capacitive coupling through the integrated circuit package
US5557209A (en) * 1990-12-20 1996-09-17 Hewlett-Packard Company Identification of pin-open faults by capacitive coupling through the integrated circuit package
EP0508062B1 (fr) * 1991-04-10 1995-07-19 atg test systems GmbH Méthode et dispositif pour tester un arrangement de conducteurs électriques
US5345170A (en) 1992-06-11 1994-09-06 Cascade Microtech, Inc. Wafer probe station having integrated guarding, Kelvin connection and shielding systems
US6380751B2 (en) * 1992-06-11 2002-04-30 Cascade Microtech, Inc. Wafer probe station having environment control enclosure
GB9212646D0 (en) * 1992-06-15 1992-07-29 Marconi Instruments Ltd A method of and equipment for testing the electrical conductivity of a connection
US5420500A (en) * 1992-11-25 1995-05-30 Hewlett-Packard Company Pacitive electrode system for detecting open solder joints in printed circuit assemblies
US5631572A (en) * 1993-09-17 1997-05-20 Teradyne, Inc. Printed circuit board tester using magnetic induction
KR0131389B1 (ko) * 1994-09-27 1998-04-14 황인길 비지에이 반도체패키지의 와이어본딩 검사방법
US6028434A (en) * 1994-11-28 2000-02-22 Lockheed Fort Worth Company Method and apparatus for detecting emitted radiation from interrupted electrons
US5561377A (en) * 1995-04-14 1996-10-01 Cascade Microtech, Inc. System for evaluating probing networks
US5963038A (en) * 1996-06-06 1999-10-05 U.S. Philips Corporation Method of testing a connection which includes a conductor in an integrated circuit
US5894224A (en) * 1996-06-06 1999-04-13 U.S. Philips Corporation Method of testing a connection which includes a conductor in an integrated circuit
US6118284A (en) * 1996-10-04 2000-09-12 Ghoshal; Uttam S. High speed magnetic flux sampling
US5821759A (en) * 1997-02-27 1998-10-13 International Business Machines Corporation Method and apparatus for detecting shorts in a multi-layer electronic package
US6002263A (en) 1997-06-06 1999-12-14 Cascade Microtech, Inc. Probe station having inner and outer shielding
US6107806A (en) * 1997-07-30 2000-08-22 Candescent Technologies Corporation Device for magnetically sensing current in plate structure
US6118279A (en) * 1997-07-30 2000-09-12 Candescent Technologies Corporation Magnetic detection of short circuit defects in plate structure
DE19742055C2 (de) * 1997-09-24 2000-02-24 Ita Ingb Testaufgaben Gmbh Vorrichtung zum Testen von Schaltungsplatinen
US6445202B1 (en) 1999-06-30 2002-09-03 Cascade Microtech, Inc. Probe station thermal chuck with shielding for capacitive current
US6965226B2 (en) * 2000-09-05 2005-11-15 Cascade Microtech, Inc. Chuck for holding a device under test
US6914423B2 (en) 2000-09-05 2005-07-05 Cascade Microtech, Inc. Probe station
US6529019B1 (en) * 2000-10-23 2003-03-04 Agilent Technologies, Inc. Multiple axis magnetic test for open integrated circuit pins
WO2003020467A1 (fr) * 2001-08-31 2003-03-13 Cascade Microtech, Inc. Appareil de test optique
US6777964B2 (en) 2002-01-25 2004-08-17 Cascade Microtech, Inc. Probe station
US20040008022A1 (en) * 2002-07-11 2004-01-15 Viola Jeffrey L. Current sensor
US6847219B1 (en) * 2002-11-08 2005-01-25 Cascade Microtech, Inc. Probe station with low noise characteristics
US7250779B2 (en) 2002-11-25 2007-07-31 Cascade Microtech, Inc. Probe station with low inductance path
US6861856B2 (en) * 2002-12-13 2005-03-01 Cascade Microtech, Inc. Guarded tub enclosure
US7221172B2 (en) * 2003-05-06 2007-05-22 Cascade Microtech, Inc. Switched suspended conductor and connection
US7492172B2 (en) * 2003-05-23 2009-02-17 Cascade Microtech, Inc. Chuck for holding a device under test
US7250626B2 (en) * 2003-10-22 2007-07-31 Cascade Microtech, Inc. Probe testing structure
US7187188B2 (en) * 2003-12-24 2007-03-06 Cascade Microtech, Inc. Chuck with integrated wafer support
DE202005021434U1 (de) 2004-06-07 2008-03-20 Cascade Microtech, Inc., Beaverton Thermooptische Einspannvorrichtung
US7330041B2 (en) * 2004-06-14 2008-02-12 Cascade Microtech, Inc. Localizing a temperature of a device for testing
EP1807724A2 (fr) * 2004-11-02 2007-07-18 Umech Technologies Co. Systeme d'imagerie numerique optiquement ameliore
US20060169897A1 (en) * 2005-01-31 2006-08-03 Cascade Microtech, Inc. Microscope system for testing semiconductors
US7535247B2 (en) * 2005-01-31 2009-05-19 Cascade Microtech, Inc. Interface for testing semiconductors
US7656172B2 (en) 2005-01-31 2010-02-02 Cascade Microtech, Inc. System for testing semiconductors
US7640121B2 (en) * 2005-11-30 2009-12-29 General Electric Company System and method for disambiguating the phase of a field received from a transmitter in an electromagnetic tracking system
US8319503B2 (en) * 2008-11-24 2012-11-27 Cascade Microtech, Inc. Test apparatus for measuring a characteristic of a device under test
US7821281B2 (en) * 2009-02-23 2010-10-26 Faraday Technology Corp. Method and apparatus of testing die to die interconnection for system in package
US9523729B2 (en) * 2013-09-13 2016-12-20 Infineon Technologies Ag Apparatus and method for testing electric conductors
CN107861045A (zh) * 2017-10-13 2018-03-30 天津市英贝特航天科技有限公司 一种基于直流ct技术的短路芯片查找装置及方法
CN112955756B (zh) * 2018-11-06 2024-06-14 宜普电源转换公司 针对定时敏感电路的磁场脉冲电流感测

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960103A1 (de) * 1969-11-29 1971-06-03 Volkswagenwerk Ag Verfahren zur Pruefung des elektrischen Durchganges von parallel geschalteten,in eine Scheibe eingebetteten Heizfaeden
FR2323155A1 (fr) * 1975-09-05 1977-04-01 Ericsson L M Pty Ltd Procede et dispositif de localisation de defauts de circuits electriques

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2744232A (en) * 1952-03-06 1956-05-01 Elbert N Shawhan Magnetic and conducting materials detector
US2946939A (en) * 1958-06-02 1960-07-26 Arden L Lind Curve follower
US2921179A (en) * 1958-11-20 1960-01-12 Air Reduction Electromagnetically locating and following workpart configurations
US3076931A (en) * 1959-12-23 1963-02-05 Jasper Cronje Apparatus for identifying and phasing electrical conductors
US3303400A (en) * 1961-07-25 1967-02-07 Fairchild Camera Instr Co Semiconductor device complex
US3201562A (en) * 1963-02-28 1965-08-17 Air Reduction Stabilized eddy current seam follower
US3344347A (en) * 1963-08-23 1967-09-26 Bell Inc F W Method and apparatus for determining displacement utilizing a hall plate positioned tangential to an arcuate magnetic field
DE2050705A1 (de) * 1969-10-15 1971-04-22 Olivetti & Co Spa Verfahren und Anordnung zum Loka hsieren von Kurzschlüssen
US3705956A (en) * 1971-01-25 1972-12-12 Computek Inc Graphic data tablet
DE2311903A1 (de) * 1973-03-09 1974-09-12 Siemens Ag Verfahren und einrichtung zur ortung von kurzschluessen in mehrlagenverdrahtungen
US3860866A (en) * 1973-05-04 1975-01-14 Western Electric Co Methods and apparatus for locating an open section in a conductor
US3889179A (en) * 1974-01-21 1975-06-10 Cranleigh Electro Thermal Inc Directional pickup coil and oscillator apparatus for the location of buried electrically conducting elements
US3924179A (en) * 1974-04-24 1975-12-02 William A Dozier Method for certifying dead cables or conductors by determining current pulse polarity
US3988663A (en) * 1975-03-19 1976-10-26 Texaco Inc. Locator for metallic pipe with AC signals impressed
US4074188A (en) * 1975-08-01 1978-02-14 Testline Instruments, Inc. Low impedance fault detection system and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1960103A1 (de) * 1969-11-29 1971-06-03 Volkswagenwerk Ag Verfahren zur Pruefung des elektrischen Durchganges von parallel geschalteten,in eine Scheibe eingebetteten Heizfaeden
FR2323155A1 (fr) * 1975-09-05 1977-04-01 Ericsson L M Pty Ltd Procede et dispositif de localisation de defauts de circuits electriques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459980A1 (fr) * 1979-06-23 1981-01-16 Membrain Ltd Procedes et appareils de localisation de defauts dans des circuits electroniques

Also Published As

Publication number Publication date
CA1084634A (fr) 1980-08-26
GB1578798A (en) 1980-11-12
DE2749529A1 (de) 1978-06-22
JPS6037900B2 (ja) 1985-08-29
FR2374650B1 (fr) 1983-01-07
US4186338A (en) 1980-01-29
JPS5375473A (en) 1978-07-04

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Legal Events

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ST Notification of lapse