Institute of Solid State Physics


SS22WS22SS23WS23SS24WS24      Guidelines for Master Students

Electrical characterization of charge accumulation/depletion in GaN-based HEMTs
Boris Butej
11:15 - 12:15 Wednesday 18 November 2020 PH01150

Video: https://bigmail.TUGraz.at/outgoing/boris_butej_134130_3212/2191_de.html

Gallium nitride (GaN) based High Electron Mobility Transistors (HEMTs) are superior to conventional silicon (Si) based devices in terms of high power, high frequency and high temperature applications. For cost-competitiveness these devices are grown on Si substrates, which introduce a lot of defects such as dislocations or point defects in the buffer layers and therefore lead to a negative impact on the device performance. This talk will give an insight where and how charges accumulate/deplete in the GaN-based HEMT under different stress conditions.