Experimental and comparative study of gamma radiation effects on Si-IGBT and SiC-JFET

B. Tala-Ighil, J. L. Trolet, H. Gualous, P. Mary, S. Lefebvre

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


This paper deals with an experimental study and a comparative study of the effects of total ionising dose of 60Co gamma radiation on Si-IGBT and SiC-JFET. The response of the threshold voltage and the turn-on switching parameters are reported for both devices. Charge trapping in the gate oxide causes the decrease of the threshold voltage for Si-IGBT. The decrease of this parameter combined with the behaviour of Miller plateau during irradiation results in a decrease of the collector current rise-time, the collector-emitter voltage fall-time, and the turn-on switching energy and in an increase of the peak of the turn-on switching power and of the turn-on overshoot collector current. No changes in these parameters are observed for SiC-JFETs up to 2900 Gy with a dose rate of 2.80 Gy/h. This indicates that those SiC-JFETs have extremely high radiation resistance with respect to the TID effects compared to the Si-IGBTs.

Original languageEnglish
Pages (from-to)1512-1516
Number of pages5
JournalMicroelectronics Reliability
Issue number9-10
Publication statusPublished - 1 Aug 2015
Externally publishedYes


  • Gamma irradiation
  • Si-IGBT
  • SiC-JFET

ASJC Scopus subject areas

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

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