Gabriel DIMA
On the Transient Instabilities in HEMTs

The paper presents a study on the transient instabilities in HEMTs manifested by the appearance of current pulses due to a travelling Gunn domain in the gate-drain region performed through 2D hydrodynamic simulations. The driving forces for the appearance of such oscillations where investigated and analyzed and a proposed optimization methodology based on DOE/RSM was presented.