Abstract
This paper presents an analysis on the dependence of the pulsed I-V characteristics of GaN HEMTs under varying quiescent drain voltage (Vdsq) conditions, and a new model is developed for this behavior. It is found that three device parameters change with Vdsq: threshold (or cut-off) voltage, and 2-DEG densities in source and drain side access regions. It is shown that these device parameters have a non-linear dependence on Vdsq. The new model for this non-linear behavior w.r.t Vdsq is validated with measured data for six Vdsq 's for two different GaN technologies. The developed model is also exercised for large signal microwave frequency performance yielding good agreement with measurements and indicating the importance of modeling this trap-related device parameter change with Vdsq. Index Terms - MMIC, power amplifiers, Gallium Nitride, Compact models, GaN trapping effects.
Original language | English |
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Title of host publication | 2019 IEEE BiCMOS and Compound semiconductor Integrated Circuits and Technology Symposium (BCICTS) |
Place of Publication | Piscataway, NJ |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Number of pages | 4 |
ISBN (Electronic) | 9781728105864 |
ISBN (Print) | 9781728105871 |
DOIs | |
Publication status | Published - 2019 |
Externally published | Yes |
Event | 2nd IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2019 - Nashville, United States Duration: 3 Nov 2019 → 6 Nov 2019 |
Conference
Conference | 2nd IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2019 |
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Country/Territory | United States |
City | Nashville |
Period | 3/11/19 → 6/11/19 |