[go: up one dir, main page]

GB1349786A - Apparatus for testing electrical circuits - Google Patents

Apparatus for testing electrical circuits

Info

Publication number
GB1349786A
GB1349786A GB1722671A GB1349786DA GB1349786A GB 1349786 A GB1349786 A GB 1349786A GB 1722671 A GB1722671 A GB 1722671A GB 1349786D A GB1349786D A GB 1349786DA GB 1349786 A GB1349786 A GB 1349786A
Authority
GB
United Kingdom
Prior art keywords
contacts
conductors
casing
frame
board
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.)
Expired
Application number
GB1722671A
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.)
Fujitsu Services Ltd
Original Assignee
Fujitsu Services Ltd
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 Fujitsu Services Ltd filed Critical Fujitsu Services Ltd
Publication of GB1349786A publication Critical patent/GB1349786A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54—Testing for continuity
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52—Testing for short-circuits, leakage current or ground faults
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

1349786 Test probes INTERNATIONAL COMPUTERS Ltd 26 May 1971 17226/71 Heading H2E Apparatus for establishing electrical connection to conductors carried on a circuit board 14 for the purpose of testing the continuity of the conductors comprises a flexible resilient member 1, having a series of electrical contacts 11 extending therethrough, which is attached to the bottom of a frame 24 movable along a vertical axis by means of a pneumatic system 28. A pressure skirt 35 is attached between the frame 24 and a casing 29 for the purpose of sealing the volume enclosed by the casing above the flexible member 1. Leads 12 connect the contacts 11 to a connector member 20 and flat cables 23 are used to provide electrical connection with a continuity tester situated outside the casing 29. To establish contact with the electrical conductors on the board 14 the frame 24 is lowered using the pneumatic system 28 until the contacts 11 touch the board conductors. The pressure in the volume above the member 1 is then increased for the purpose of maintaining a firm contact between the contacts 11 and the conductors. The resilient member 1 may comprise a thin sheet of Mylar (Registered Trade Mark) with a coating of silicon rubber for the purpose of sealing the holes through which the contacts 11 extend. The contacts may be of gold plated brass. An alternative arrangement of the frame 24 and circuit board inside the casing 29 is described (Figs. 2, 3, not shown).
GB1722671A 1971-05-26 1971-05-26 Apparatus for testing electrical circuits Expired GB1349786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1722671 1971-05-26

Publications (1)

Publication Number Publication Date
GB1349786A true GB1349786A (en) 1974-04-10

Family

ID=10091452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1722671A Expired GB1349786A (en) 1971-05-26 1971-05-26 Apparatus for testing electrical circuits

Country Status (2)

Country Link
FR (1) FR2138605B3 (en)
GB (1) GB1349786A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617190A1 (en) * 1975-05-17 1976-12-02 Int Computers Ltd DEVICES FOR TESTING ELECTRICAL DEVICES
GB2156532A (en) * 1984-03-24 1985-10-09 Plessey Co Plc Apparatus for testing a printed circuit board
US5092774A (en) * 1991-01-09 1992-03-03 National Semiconductor Corporation Mechanically compliant high frequency electrical connector
US5567165A (en) * 1993-12-28 1996-10-22 Yamaichi Electronics Co., Ltd. Fluid actuated connector/carrier for electric part
US5573418A (en) * 1993-12-28 1996-11-12 Yamaichi Electronics Co., Ltd. Press-in connection type structure for electric part
US6468098B1 (en) * 1999-08-17 2002-10-22 Formfactor, Inc. Electrical contactor especially wafer level contactor using fluid pressure
US7396236B2 (en) 2001-03-16 2008-07-08 Formfactor, Inc. Wafer level interposer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2617190A1 (en) * 1975-05-17 1976-12-02 Int Computers Ltd DEVICES FOR TESTING ELECTRICAL DEVICES
GB2156532A (en) * 1984-03-24 1985-10-09 Plessey Co Plc Apparatus for testing a printed circuit board
US5092774A (en) * 1991-01-09 1992-03-03 National Semiconductor Corporation Mechanically compliant high frequency electrical connector
US5567165A (en) * 1993-12-28 1996-10-22 Yamaichi Electronics Co., Ltd. Fluid actuated connector/carrier for electric part
US5573418A (en) * 1993-12-28 1996-11-12 Yamaichi Electronics Co., Ltd. Press-in connection type structure for electric part
US6468098B1 (en) * 1999-08-17 2002-10-22 Formfactor, Inc. Electrical contactor especially wafer level contactor using fluid pressure
US7195503B2 (en) 1999-08-17 2007-03-27 Formfactor, Inc. Electrical contactor, especially wafer level contactor, using fluid pressure
US7455540B2 (en) 1999-08-17 2008-11-25 Formfactor, Inc. Electrical contactor, especially wafer level contactor, using fluid pressure
US7722371B2 (en) 1999-08-17 2010-05-25 Formfactor, Inc. Electrical contactor, especially wafer level contactor, using fluid pressure
US7396236B2 (en) 2001-03-16 2008-07-08 Formfactor, Inc. Wafer level interposer
US7649368B2 (en) 2001-03-16 2010-01-19 Formfactor, Inc. Wafer level interposer

Also Published As

Publication number Publication date
FR2138605A1 (en) 1973-01-05
FR2138605B3 (en) 1975-02-14

Similar Documents

Publication Publication Date Title
GB1508884A (en) Apparatus for testing printed circuit board assemblies
US4837507A (en) High frequency in-circuit test fixture
GB1416950A (en) Electrical contactor
GB1233309A (en)
GB1254677A (en) Electrical contact device
EP0294939A3 (en) Multiple lead probe for integrated circuits in wafer form
GB1450257A (en) Matched impedance printed circuit board connector
GB1491425A (en) Testing semiconductor devices
ES2021640B3 (en) DEVICE FOR ELECTRONIC CONTROL OF CONDUCTOR BOARDS WITH CONTACT POINTS IN A MODULE (1/20 TO 1/10 INCHES) EXTREMELY THIN
GB1515570A (en) Multi-conductor cable testing apparatus
GB1349786A (en) Apparatus for testing electrical circuits
GB1499926A (en) Contact device for a flat cable
GB1385977A (en) Electrical measurement apparatus
EP0001897A3 (en) Electrical connector including an elastomeric connecting element
GB1130079A (en) Fluid proof interconnecting device
EP0294925A3 (en) Coplanarity testing device for surface mounted components
JPS5745473A (en) Device and method for testing printed circuit board
US4403822A (en) Electrical probe apparatus
GB1530350A (en) Electrical test jigs
FR2273257A1 (en) Sensor for surfaces of objects - has surface electrode and measurement electrodes connected to integral elastic film
GB1437998A (en) Extension device for the contact elements of electrical connect ors
GB1494344A (en) Telephone connector block apparatus and method of block construction
GB1348805A (en) Test board assembly for electronic components
GB857951A (en) Improvements in or relating to apparatus for mounting an electricity meter for test purposes
ES196639U (en) Amovible coupling device on isolated conductors. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee