scholarly journals Long-term radiation effects in GaAs microwave devices exposed to pulsed ionizing radiation

2019 ◽  
Vol 30 ◽  
pp. 10005
Author(s):  
Dmitry Gromov ◽  
Vadim Elesin

The investigation results of the GaAs microwave devices characteristics under pulse irradiation are presented. The study covers the field effect transistor with Schottky barrier, pseudomorphic high-electron mobility transistors and resonant tunnelling diodes implemented in GaAs technology processes. It has been demonstrated that GaAs MESFET, pHEMT and RTDs may show the long-term parameter recovery undo pulsed ionizing exposure.

2000 ◽  
Vol 10 (01) ◽  
pp. 119-128
Author(s):  
ENRICO ZANONI ◽  
GAUDENZIO MENEGHESSO ◽  
ALDO DI CARLO ◽  
PAOLO LUGLI ◽  
LORENZO ROSSI

The operating voltage of advanced microwave devices is currently limited by impact-ionization and breakdown effects. An extended study of the effects of hot carriers on the breakdown behavior and reliability of GaAs-based and InP-based HEMTs (high electron mobility transistors) has been carried out by means of pulsed measurements, electroluminescence spectroscopy and microscopy and Monte Carlo simulations. We show that the parasitic bipolar effect, which explains kink effects in HEMTs, can also induce regenerative phenomena eventually leading to on-state breakdown. Results concerning the effects of hot carrier aging on GaAs-based and InP-based HEMTs are summarized.


1995 ◽  
Vol 10 (11) ◽  
pp. 1445-1451 ◽  
Author(s):  
N Arpatzanis ◽  
M Papastamatiou ◽  
G J Papaioannou ◽  
Z Hatzopoulos ◽  
G Konstandinides

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