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Ultra-high-vacuum (UHV) deposited Ga2O3(Gd2O3) [GGO] has been employed for passivating InGaAs and Ge, without using any interfacial paissivation layers (IPLs). The GGO/InGaAs and /Ge metal-oxide-semiconductor capacitors (MOSCAPs) have exhibited low capacitance-equivalent-thickness (CET) of less than 1nm in GGO, low interfacial densities of states (Dit's) ~ 1011eV-1cm-2, and thermal stability at high...
We have achieved high device performance in self-aligned inversion-channel InGaAs MOSFETs, as well as a CET of <; 1 nm, a Dit ≤ 1011 eV-1cm-2, and high-temperature thermal stability withstanding >850°C RTA in GGO and a CET of <; 1 nm in ALD-HfO2 on InGaAs. Remarkable device performances in self-aligned, inversion-channel Ge MOSFET using GGO without any interfacial passivation layers (IPLs),...
The authors report the fabrication of high-performance planar InGaAs P-I-N buried heterostructure photodetectors (BH-PDs) by introducing mesa etching and refilling with semi-insulating InP. It was found that measured 3-dB bandwidth for the fabricated BH-PD was 12.4 GHz. For a given bandwidth of 1 kHz and a given bias of -5 V, it was found that noise equivalent powers our InGaAs P-I-N BH-PD were 6...
High-performance self-aligned inversion-channel In0.75Ga0.25As n-MOSFETs using in-situ ultra-high-vacuum (UHV) deposited Al2O3/Ga2O3(Gd2O3) and ex-situ atomic-layer-deposited (ALD) Al2O3 as gate dielectrics have been fabricated. Both devices exhibit excellent DC characteristics, including high drain currents and transconductances. A 1.2 mum-gate-length In0.75Ga0.25As MOSFET using Al2O3(2 nm-thick)/GGO(13...
In this work, for practical device integration in future, a self-aligned In0.53Ga0.47As MOSFET was successfully implemented, using molecular beam epitaxy (MBE) grown In0.53Ga0.47As as the channel, ALD-AI2O3 as the gate dielectric, and sputtered TiN as the gate metal. The key of the self-aligned process in fabricating inversion-channel III-V MOSFETs is not only to ensure good interface properly after...
The surface Fermi level unpinning in InGaAs has been realized with high kappa dielectric growth using molecular beam eitaxy (MBE) and atomic layer deposition (ALD). Furthermore, world-record device performances in self-aligned inversion-channel InGaAs MOSFET and a capacitance equivalent thickness (CET) of les 1 nm in Ga2O3(Gd2O3) and ALD-HfO2 on InGaAs have been achieved.
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