Stable Operation of AlGaN/GaN HEMTs at 400${}^{\circ }$C in air for 25 hours

Saleh Kargarrazi, Ananth Saran Yalamarthy, Peter F. Satterthwaite +3

In this letter, we report the operation of AlGaN/GaN HEMTs with Pd gates in air over a wide temperature range from 22${}^{\circ }$C to 500${}^{\circ }$C. The variation in the threshold volta…