Static and dynamic characterization of a GaN-on-GaN 600 V, 2 a vertical transistor

Vertical GaN power semiconductors promise higher power with faster switching speeds but the development of this technology has been slowed. This is due to the expense and lack of familiarity with GaN substrates. This paper will detail the functionality of HRL's cutting-edge vertical GaN transistor which is mounted onto a specially made PCB and tested. The testing consists of a static characterization which shows a breakdown voltage of 600 V, as well as the transfer characteristics, output characteristics, and the on-state resistance with respect to current. The device is then switched at various voltages and currents with voltage switching speeds up to 97 V/ns. The device is successfully switched up to 450 V under a 2 A load current.