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 …

Non-linear thermal resistance model for the simulation of high power GaN-based devices

S García-Sánchez, I Íñiguez-de-la-Torre… - Semiconductor …, 2021 - iopscience.iop.org
We report on the modeling of self-heating in GaN-based devices. While a constant thermal
resistance is able to account for the self-heating effects at low power, the decrease of the …

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 …

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 …

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 …

Monte Carlo Study of Gunn Oscillations in Geometrically Shaped Planar Gunn Diodes Based on Doped GaN: Influence of Geometry, Intervalley Energy, and …

S García-Sánchez, I Íñiguez-de-la-Torre… - … on Electron Devices, 2024 - ieeexplore.ieee.org
An investigation into self-switching diodes based on highly doped GaN is conducted under
direct current (dc) bias conditions. Different device geometries are explored under various …

Investigation of THz frequency shaped anode planar Gunn diodes operating in delayed mode

A Mindil, G Dunn, A Khalid… - IEEE Journal of the …, 2020 - ieeexplore.ieee.org
A novel planar design of Gunn diode with a shaped anode contact, utilizing Monte Carlo
simulations, has been shown to have produced 0.3 THz frequency current output when …