Aluminium Gallium Nitride (AlGaN)/Gallium Nitride (GaN)/Boron Gallium Nitride (BGaN) High Electron Mobility Transistors (HEMT): From Normally-On to Normally-Off Transistor
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Abstract
In this paper, using the simulator TCAD SILVACO, the physical parameters to pass from a normallyon to a normally-off AlGaN/GaN HEMT with a BGaN back-barrier, was studied. With n-doped donor layer at 1 × 1016 cm–3, as a results we obtain a threshold
voltage of 0.509 V normally-off AlGaN/GaN HEMT. The first transistor is able to operate in high power in better way; the second one is efficient for weak signals up to the X-band, and it has the advantage of being normally-off.
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