Abstract
In this work, measurements were taken to investigate the robustness of a GaN HEMT to TID by a 60CO Source. These results will be compared with a previous X-ray based work. The robustness was investigated through IxV curves and characteristic parameters of the irradiated device. The analysis included data acquired both from on- and off- state modes. The work concludes that the device is robust to TID, as it quickly recovered important parameters. Mainly, the on-state mode, which presented a better performance compared to the off-mode. An analogous behavior was seen for X-ray. Finally, the VTH values due to the TID, in this device is independent of the dose rate and the radiation source.
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