Gallium Nitride HEMTs grown on Si substrates are the most promising solution for the future technologies in the power electronics industry. Compensation of unintentional GaN n-type conductivity is specifically mandatory in the buffer for an optimum device blocking function. Carbon (C) or Iron (Fe) doping are the most common solutions that however are responsible also for the introduction of traps in the buffer, that induce large charge trapping and current collapse when devices are biased at high voltages as well as affect breakdown behavior of these devices. This paper reviews the main high field related issues recently reported in GaN-on-Si devices for power applications.

Trapping and High Field Related Issues in GaN Power HEMTs / Meneghesso, Gaudenzio; Meneghini, Matteo; Chini, Alessandro; Verzellesi, Giovanni; Zanoni, Enrico. - ELETTRONICO. - February(2014), pp. 446-449. (Intervento presentato al convegno 2014 60th IEEE International Electron Devices Meeting, IEDM 2014 tenutosi a San Francisco, CA (USA) nel December 15-17, 2014) [10.1109/IEDM.2014.7047072].

Trapping and High Field Related Issues in GaN Power HEMTs

CHINI, Alessandro;VERZELLESI, Giovanni;
2014

Abstract

Gallium Nitride HEMTs grown on Si substrates are the most promising solution for the future technologies in the power electronics industry. Compensation of unintentional GaN n-type conductivity is specifically mandatory in the buffer for an optimum device blocking function. Carbon (C) or Iron (Fe) doping are the most common solutions that however are responsible also for the introduction of traps in the buffer, that induce large charge trapping and current collapse when devices are biased at high voltages as well as affect breakdown behavior of these devices. This paper reviews the main high field related issues recently reported in GaN-on-Si devices for power applications.
2014
2014 60th IEEE International Electron Devices Meeting, IEDM 2014
San Francisco, CA (USA)
December 15-17, 2014
446
449
Meneghesso, Gaudenzio; Meneghini, Matteo; Chini, Alessandro; Verzellesi, Giovanni; Zanoni, Enrico
Trapping and High Field Related Issues in GaN Power HEMTs / Meneghesso, Gaudenzio; Meneghini, Matteo; Chini, Alessandro; Verzellesi, Giovanni; Zanoni, Enrico. - ELETTRONICO. - February(2014), pp. 446-449. (Intervento presentato al convegno 2014 60th IEEE International Electron Devices Meeting, IEDM 2014 tenutosi a San Francisco, CA (USA) nel December 15-17, 2014) [10.1109/IEDM.2014.7047072].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1061319
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