Printed-Wiring Assemblies; Detection of Ionic Contaminants on.

Abstract

A test for determining the ionic contaminants on printed-wiring assemblies was proposed, defined, and found feasible. The basis of the test is the change in electrical resistivity of the solvent with which the chemist washed the printed-wiring assembly. The solvent was 75% by volume, ACS Reagant Grade isopropyl alcohol. The resistivity is lowered when contaminants, such as flux residues, are dissolved. Establishing acceptance criteria for clean printed-wiring assemblies was beyond he scope of this investigation. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 24, 1978
Accession Number
ADA057364

Entities

People

  • W. T. Hobson

Organizations

  • Naval Air Warfare Center, Indianapolis

Tags

DTIC Thesaurus Topics

  • Alcohols
  • Assembly
  • Chemical Synthesis
  • Chemistry
  • Conductivity
  • Data Science
  • Dielectric Polymers
  • Environmental Pollutants
  • Hot Water
  • Information Science
  • Least Squares Method
  • Materials
  • Measurement
  • Sodium Compounds
  • Statistical Analysis
  • Test Methods
  • Water

Readers

  • Agricultural Chemistry/Soil Science
  • Nanocomposite Materials Science
  • Plasma Physics.