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Method and apparatus for testing of electrical interconnection networks

  • US 4,565,966 A
  • Filed: 03/07/1983
  • Issued: 01/21/1986
  • Est. Priority Date: 03/07/1983
  • Status: Expired due to Term
First Claim
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1. A method for testing rigid or flexible electrical interconnection network boards including at least two networks including terminal points and interconnecting conductors, said method comprising the steps of:

  • establishing an electrically conductive reference means in a predetermined electrical and geometrical position with respect to the surface containing the interconnecting conductors of the networks, and separated therefrom by a dielectric;

    making measurements from terminal points of the interconnection board being tested includingat least one impedance measurement from a terminal point of each network to said reference means, andat least a measurement of the end-to-end resistance of each network;

    with either the impedance or the resistance measurement(s) being made first;

    comparing said measured impedance and resistance values with the respective pre-established values for an interconnection board with no electrical faults;

    and indicating faults when either(a) said impedance measurement value is above said respective established value by more than a predetermined amount;

    (b) said impedance measurement value is below said respective established value by more than a predetermined amount; and

    /or(c) said resistance measurement value departs from said respective predetermined value.

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