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For the first time, inversion-channel GaN MOSFETs using atomic-layer-deposited (ALD) Al2O3 as a gate dielectric have been successfully fabricated, showing well-behaved drain I-V and transfer characteristics. The drain current was scaled with gate length, showing a maximum drain current of 10 mA/mm in a device of 1 mum gate length, at a gate voltage (Vgs) of 8 V and a drain voltage (Vds) of 10 V. High...
Self-aligned inversion-channel In0.53Ga0.47As n-MOSFETs with ex-situ atomic-layer-deposited Al2O3 and in-situ ultra-high-vacuum deposited Al2O3/Ga2O3(Gd2O3) as gate dielectrics have been demonstrated. Both devices exhibit excellent DC characteristics, including high drain currents and transconductances. In addition, RF characteristics of both devices were analyzed; without using any isolation, non...
In this paper, inversion n-channel GaN MOSFETs using atomic-layer-deposited (ALD) Al2O3 as a high k gate dielectric is demonstrated for the first time electrical performance close to those of the silicon based MOSFET. Device performance are markedly improved compared to the previous results of GaN MOSFETs with high k dielectrics.
The authors have successfully demonstrated self-aligned high-performance inversion-channel In0.53Ga0.47As MOSFETs using UHV-deposited nano-meter thick AI2O3/GGO dual-layer dielectrics and a TiN metal gate. Record-high drain current and transconductance, despite its challenging process, were achieved. Ring gate D-mode In0.2Ga0.8As MOSFETs using as a similar dual layer gate dielectric also exhibits...
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