< Terug naar vorige pagina

Publicatie

Optimization of the source field-plate design for low dynamic RDS-ON dispersion of AlGaN/GaN MIS-HEMTs

Tijdschriftbijdrage - Tijdschriftartikel

© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim AlGaN/GaN MIS-HEMTs with two levels of source field-plates were studied by means of pulsed I–V measurements. These measurements showed that the presence of a source field-plate itself is not enough to guarantee a low dynamic RDS-ON at high OFF-state drain-bias. Simulations of the electric field were carried out to explain the experimental results. It was found that not only does the intensity of the electric field affects the dynamic RDS-ON, but also that the position of the electric field peaks plays a role in the trapping phenomenon, responsible for the dynamic RDS-ON increase at high OFF-state drain-bias. These results show that the source field-plate must be carefully designed in order to obtain a low dynamic RDS-ON at high bias.
Tijdschrift: Physica Status Solidi A, Applications and Materials Research
ISSN: 1862-6300
Issue: 3
Volume: 214
Jaar van publicatie:2017