Stability, reliability, and robustness of GaN power devices: A review

JP Kozak, R Zhang, M Porter, Q Song… - … on Power Electronics, 2023 - ieeexplore.ieee.org
Gallium nitride (GaN) devices are revolutionarily advancing the efficiency, frequency, and
form factor of power electronics. However, the material composition, architecture, and …

Degradation and recovery of GaN HEMTs in overvoltage hard switching near breakdown voltage

JP Kozak, Q Song, R Zhang, Y Ma, J Liu… - … on Power Electronics, 2022 - ieeexplore.ieee.org
GaN high electron mobility transistors (HEMTs) have limited avalanche capability and
usually fail catastrophically in voltage overshoot up to their dynamic breakdown voltage (BV …

Evaluation and MHz Converter Application of 1.2-kV Vertical GaN JFET

X Yang, R Zhang, Q Yang, Q Song… - … on Power Electronics, 2024 - ieeexplore.ieee.org
The 1.2 kV vertical GaN fin-channel junction field-effect transistor (JFET) is an emerging
industrial device with low specific on-resistance (R ON), normally-off operation, and …

Evaluation of Dynamic RON, Coss Loss, and Short-Circuit Ruggedness of 650V and 1200V Industrial Vertical GaN JFETs

X Yang, Q Song, R Zhang, B Wang… - … Devices and ICs …, 2024 - ieeexplore.ieee.org
Dynamic on-resistance R_ON, hysteresis output capacitance (Coss) loss, and short-circuit
(SC) capability are three crucial reliability and robustness concerns facing many GaN high …

Switching performance evaluation of 650 V vertical GaN fin JFET

R Zhang, Q Yang, Q Li, Y Zhang… - 2023 IEEE Applied …, 2023 - ieeexplore.ieee.org
This work reports the first switching performance characterization of a 650 V NexGen's
Vertical GaN TM fin-channel junction field effect transistor (Fin-JFET) fabricated on 4-inch …

Exceptional repetitive-short-circuit robustness of vertical GaN fin-JFET at high voltage

R Zhang, J Liu, Q Li, S Pidaparthi… - 2022 IEEE 34th …, 2022 - ieeexplore.ieee.org
The limited short circuit (SC) capability of GaN high-electron-mobility transistors (HEMTs)
has become a critical concern for their adoption in many power applications. Recently …

Switching of a bus voltage of 1400 V at 10 MHz using vertical GaN Fin-JFETs

A Edwards, V Padilla, C Drowley… - … Devices and ICs …, 2023 - ieeexplore.ieee.org
The fast-switching performance results of a 1200 V rated normally-off vertical GaN Fin-JFET
are presented in this paper. A compact SPICE model which predicts its DC and dynamic …

Compact Modeling of Power GaN Fin-JFETs IV Characteristics using ASM-HEMT Model

D Bavi, S Khandelwal - 2024 IEEE Texas Power and Energy …, 2024 - ieeexplore.ieee.org
In this paper, we analyse and precisely model the current-voltage (IV) characteristics of
Vertical GaN Fin-JFETs for operation temperatures of T= 25° C, 100° C and 200° C. To the …

Surge-energy and Overvoltage Robustness of Cascode GaN Power Transistors

Q Song - 2022 - vtechworks.lib.vt.edu
Surge-energy robustness is essential for power devices in many applications such as
automotive powertrains and electricity grids. While Si and SiC MOSFETs can dissipate surge …