Demonstration of KV-Class \b{eta}-Ga2O3 Trench Junction Barrier Schottky Diodes with SpaceModulated Junction Termination Extension

Fuente: arXiv
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Autores principales: Gilankar, Advait, Gervassi-Saga, Julian, McCartney, Martha R., Das, Nabasindhu, McComas, David Malcolm, Smith, David J., Kalarickal, Nidhin Kurian
Formato: Preprint
Publicado: 2025
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author Gilankar, Advait
Gervassi-Saga, Julian
McCartney, Martha R.
Das, Nabasindhu
McComas, David Malcolm
Smith, David J.
Kalarickal, Nidhin Kurian
author_facet Gilankar, Advait
Gervassi-Saga, Julian
McCartney, Martha R.
Das, Nabasindhu
McComas, David Malcolm
Smith, David J.
Kalarickal, Nidhin Kurian
contents In this work, we report on the design and fabrication of p-NiO/Ga2O3 trench junction barrier schottky diodes (JBSD) integrated with space-modulated junction termination extension (SM-JTE) and compare the performance with planar Ni/Ga2O3 schottky diodes (SBDs) and p-NiO/Ga2O3 heterojunction diodes (HJDs). The JBSDs achieved breakdown voltages exceeding 1.8 kV along with low leakage currents (<10-2 A/cm2), while displaying low turn on voltage (VON) of ~1V, which is similar to that of planar Ni/Ga2O3 SBDs. The fabricated devices showed excellent forward characteristics with low differential on-resistance (Ron,sp) ranging from 4-10.5 mΩ-cm2, for fin width between 0.6- 1.25 microns. Best performing device with fin width of 0.85μm showed a unipolar figure of merit (FOM) of ~0.7GW/cm2. This work showcases the benefits of trench JBS design along with SM-JTE edge-termination for efficient high-performance kilovolt-class \b{eta}- Ga2O3 diodes.
format Preprint
id arxiv_https___arxiv_org_abs_2512_04033
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Demonstration of KV-Class \b{eta}-Ga2O3 Trench Junction Barrier Schottky Diodes with SpaceModulated Junction Termination Extension
Gilankar, Advait
Gervassi-Saga, Julian
McCartney, Martha R.
Das, Nabasindhu
McComas, David Malcolm
Smith, David J.
Kalarickal, Nidhin Kurian
Applied Physics
In this work, we report on the design and fabrication of p-NiO/Ga2O3 trench junction barrier schottky diodes (JBSD) integrated with space-modulated junction termination extension (SM-JTE) and compare the performance with planar Ni/Ga2O3 schottky diodes (SBDs) and p-NiO/Ga2O3 heterojunction diodes (HJDs). The JBSDs achieved breakdown voltages exceeding 1.8 kV along with low leakage currents (<10-2 A/cm2), while displaying low turn on voltage (VON) of ~1V, which is similar to that of planar Ni/Ga2O3 SBDs. The fabricated devices showed excellent forward characteristics with low differential on-resistance (Ron,sp) ranging from 4-10.5 mΩ-cm2, for fin width between 0.6- 1.25 microns. Best performing device with fin width of 0.85μm showed a unipolar figure of merit (FOM) of ~0.7GW/cm2. This work showcases the benefits of trench JBS design along with SM-JTE edge-termination for efficient high-performance kilovolt-class \b{eta}- Ga2O3 diodes.
title Demonstration of KV-Class \b{eta}-Ga2O3 Trench Junction Barrier Schottky Diodes with SpaceModulated Junction Termination Extension
topic Applied Physics
url https://arxiv.org/abs/2512.04033