12.5 A/350 V AlGaN/GaN-on-Si MOS-HEMT with low specific on-resistance and minimal threshold hysteresis
2014
An AlGaN/GaN metal-oxide semiconductor (MOS) high-electron mobility transistor (HEMT) on silicon substrate was obtained with 8 nm Al2O3 gate dielectric films grown using atomic layer deposition. The MOS-HEMT shows a low specific on-resistance of 0.57 Omega.mm(2), a large maximum saturate drain current of 12.5 A and a minimal threshold hysteresis of 0.05 V. Low specific on-resistance, large maximum saturate drain current and minimal threshold hysteresis show that the fabricated MOS-HEMT is very suitable for power switching applications.
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