Infrared Detection of Faulty Solder Joints. Phase 2.2.

Abstract

An experimental model of a laser/thermal testing system for solder joints has been evaluated during tests on 1,074 joints. Certain types of defect in through-hole and lap joints are revealed by this method, which seeks out variations in surface quality and in thermal mass. The possibility of accidental laser-beam damage to substrates was also investigated. A means of reducing this possibility was conceived and implemented. The feasibility of testing solder joints covered by a conformal coating was confirmed. Several improvements in the system design concept were effected during the course of the work. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1982
Accession Number
ADA112703

Entities

People

  • Alan C. Traub

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Assembly
  • Circuit Boards
  • Detection
  • Detectors
  • Helium Neon Lasers
  • Infrared Detection
  • Infrared Detectors
  • Laser Beams
  • Lasers
  • Measurement
  • Optical Detectors
  • Optical Fibers
  • Optics
  • Printed Circuits
  • Test Methods
  • Warning Systems

Fields of Study

  • Engineering

Readers

  • Integrated Circuit Design and Technology.
  • Surface Coatings Technology.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy