The fast neutron irradiation influence on the AlGaAs IR-LEDs reliability

A. V. Gradoboev, K. N. Orlova, I. A. Asanov, A. V. Simonova

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This paper represents the results of investigation of preliminary fast neutron irradiation influence on reliability of IR-LEDs manufactured on the basis of AlGaAs heterostructures. It is determined that design margin of LEDs is defined by catastrophic failures that are driven by mechanical destruction of LED packages rather than their lighting technology characteristics. The upper and lower limits of catastrophic failure probability are determined. In addition, the upper limit is shown to be dependent on the melt temperature of ohmic contact used to fix the chip to chip carrier. The preliminary fast neutron irradiation leads to the shift of defined temperature limits while the probability of catastrophic failure grows with neutron fluence that can be explained by lower radiation resistance of ohmic contact.

Original languageEnglish
JournalMicroelectronics and Reliability
DOIs
Publication statusAccepted/In press - 5 Sep 2015

Fingerprint

Neutron irradiation
neutron irradiation
fast neutrons
Light emitting diodes
aluminum gallium arsenides
light emitting diodes
Ohmic contacts
electric contacts
chips
radiation tolerance
fixing
illuminating
destruction
Heterojunctions
margins
Neutrons
fluence
Lighting
Radiation
neutrons

Keywords

  • AlGaAs
  • Fast neutrons
  • Heterostructures
  • IR range
  • Light emitting diodes
  • Package destruction
  • Reliability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Safety, Risk, Reliability and Quality

Cite this

The fast neutron irradiation influence on the AlGaAs IR-LEDs reliability. / Gradoboev, A. V.; Orlova, K. N.; Asanov, I. A.; Simonova, A. V.

In: Microelectronics and Reliability, 05.09.2015.

Research output: Contribution to journalArticle

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