THIN-FILM ELECTRIC INITIATOR: IV. MECHANISM OF LOW-POWER EXPLOSION OF THIN-FILM RESISTORS,

Abstract

The burnout (explosion) mechanism for small, thin-film bridges deposited on various substrates was investigated in conjunction with the development of a miniature electric detonator. Film bridges on fused silica, barium aluminum borosilicate glass and polyimide film were exploded by the discharge current from a capacitor and also by current from a d-c source. Photomicrographs were taken of bridge resistors before and after they were burned out by capacitor discharge, and photomicrographs were taken of other bridge resistors before and during various stages of the burnout caused by the current furnished by the d-c source. It was concluded that the bridges burned out due to mechanical stresses caused by the different rates of thermal expansion between the bridge and substrate and the constraint of the electrodes. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1968
Accession Number
AD0684309

Entities

People

  • S. A. Clark Jr

Organizations

  • Harry Diamond Laboratories

Tags

DTIC Thesaurus Topics

  • Capacitors
  • Detonators
  • Electric Detonators
  • Explosions
  • Explosives Initiators
  • Film Resistors
  • Films
  • Optical Materials
  • Resistors
  • Substrates
  • Thermal Expansion
  • Thin Film Resistors
  • Thin Films

Fields of Study

  • Engineering

Readers

  • Combustion science or combustion engineering.
  • Electrical Engineering
  • Thin Film Deposition Science.