DC and low-frequency noise characteristics of GaN-based HEMTs under cryogenic temperatures

B Zeng, H Zhang, C Luo, Z Xiang… - Journal of Physics D …, 2022 - iopscience.iop.org
In this work, the device characteristics of GaN-based high-electron-mobility transistors
(HEMTs) were systematically investigated by the direct current (DC) and low-frequency …

On the practical limitations for the generation of Gunn oscillations in highly doped GaN diodes

S García-Sánchez, M Abou Daher… - … on Electron Devices, 2023 - ieeexplore.ieee.org
Planar Gunn diodes based on doped GaN active layers with different geometries have been
fabricated and characterized. Gunn oscillations have not been observed due to the …

Characterization of self-heating in cryogenic high electron mobility transistors using Schottky thermometry

AY Choi, I Esho, B Gabritchidze, J Kooi… - Journal of Applied …, 2021 - pubs.aip.org
Cryogenic low-noise amplifiers based on high electron mobility transistors (HEMTs) are
widely used in applications such as radio astronomy, deep space communications, and …

Optimization of the epilayer design for the fabrication of doped GaN planar Gunn diodes

S Garcia-Sanchez, I Iniguez-de-la-Torre… - … on Electron Devices, 2021 - ieeexplore.ieee.org
By means of Monte Carlo simulations of gallium nitride (GaN) planar Gunn diodes, the
epilayer structure on which they are fabricated is optimized in order to achieve ultrahigh …

[HTML][HTML] Monte Carlo analysis of thermal effects in the DC and AC performance of AlGaN/GaN HEMTs

H Sánchez-Martín, I Íñiguez-de-la-Torre… - Solid-State …, 2022 - Elsevier
The influence of thermal effects in AlGaN/GaN HEMTs is studied by means of Monte Carlo
simulations. Measured output and transfer characteristics of a transistor are well reproduced …

A Deep Learning-Monte Carlo combined prediction of side-effect impact ionization in highly doped GaN diodes

S García-Sánchez, R Rengel, S Pérez… - … on Electron Devices, 2023 - ieeexplore.ieee.org
The existence of leakage current pathways leading to the appearance of impact ionization
and the potential device breakdown in planar Gunn GaN diodes is analyzed by means of a …

Hybrid AI-Thermal Model Trained via Monte Carlo Simulations to Study Self-Heating Effects

S García-Sánchez, I Íñiguez-de-la-Torre… - … on Electron Devices, 2024 - ieeexplore.ieee.org
This article presents a hybrid artificial intelligence (AI)-thermal model for the determination of
the current and lattice temperature of a device under a given bias voltage. The model is …

[图书][B] Investigation of electronic fluctuations in semiconductor materials and devices through first-principles simulations and experiments in transistor amplifiers

AY Choi - 2022 - search.proquest.com
Electronic noise, or stochasticity in the current, voltage, and frequency of a carrier signal is
caused by microscopic fluctuations in the occupation of quantum electronic states. In the …

Characterization of GaN-based HEMTs down to 4.2 K for cryogenic applications

B Zeng, H Zhang, Z Xiang, C Luo, Y Zhang… - arXiv preprint arXiv …, 2022 - arxiv.org
The cryogenic performance of GaN-based HEMTs (high-electron-mobility transistors) is
systematically investigated by the direct current (DC) and low-frequency noise (LFN) …

THz Oscillation in Doped-GaN Based Planar Gunn Diode with the T-shape Channel

L Huo, R Lingaparthi, K Shabdurasulov… - 2023 18th European …, 2023 - ieeexplore.ieee.org
In this study, the performance of a doped-GaN-based planar Gunn diode (PGD) with a T-
shape channel is investigated through numerical simulations. The effects of the vertical …