Investigation of Microcircuit Seal Testing

Abstract

The purpose of this investigation was to determine the detection ranges of Test Conditions A, B, C, and E of Method 1014, MIL-STD-883. Also to examine the test variables and modifications of the methods for possible expansion of the detection ranges, and to improve the overall test results. This report discusses the various tests conducted and the results of these tests. In addition to the standard test conditions, various exposure pressures and times of both helium and radioisotope tracer gases are examined. Surface absorption, gettering materials, and controlled orifice helium testing are each examined and discussed. Also the gross leak bubble and weight gain test methods are evaluated for sensitivity and effectiveness using various pressures, pressurization times, and fluids for the purpose of optimizing test conditions and defining reject criteria. Based on the data analysis of this testing, recommendations of leak rate limits and parameter conditions are made which will provide the highest degree of reliability in the most cost-effective manner.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADB004618

Entities

People

  • E. Gerow Roberts
  • Ralph E. Mccullough
  • Sam B. Banks

Organizations

  • Texas Instruments

Tags

Communities of Interest

  • Counter IED
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Body Weight
  • Detection
  • Dwell Time
  • Equations
  • Flow Rate
  • Fluid Flow
  • Isotopes
  • Laser Drilling
  • Mass Spectrometers
  • Materials
  • Plastic Explosives
  • Sorption
  • Standards
  • Test And Evaluation
  • Test Methods
  • Thin Walls
  • Vacuum Pumps

Readers

  • Combustion and Flow Dynamics.
  • Software Engineering
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics