activity
20222026
most citedHigh performance vacuum annealed beta-(AlxGa1-x)2O3/Ga2O3 HFET with f_T/f_MAX of 32/65 GHz

1 citations · 2 across the 11 of their papers we have counts for

collaborators

11 papers

cond-mat.mtrl-sci2026

4 MV/cm (010) -GaO Heterojunction Diodes Realized by Low-Damage e-Beam NiO Interlayers

Carl Peterson, Yizheng Liu, Chinmoy Nath Saha +3

We report on the utilization of a low-damage e-beam NiO deposition process to realize field-plated heterojunction diodes (FP-HJDs) on (010) -GaO films with high crit…

physics.app-ph2026

VBr >10 kV E-Beam/Sputtered Vertical NiOx/(011) β-Ga2O3 HJDs with PFOM >2.3 GW/cm2

Yizheng Liu, Carl Peterson, Chinmoy Nath Saha +2

Beta-gallium oxide (β-Ga2O3) holds enormous potential for medium voltage range power electronic applications. This work reports VBr > 10 kV/Ron,sp = 43 mΩ*cm2 class edge terminated…

physics.app-ph2026

Evidence of Micron-Scale Ion Damage in (010), (110), and (011) Epitaxial Layers

Carl Peterson, Chinmoy Nath Saha, Yizheng Liu +2

We report on the experimental observation of up to 11.5 deep charge depletion in (010), (110), and (011) epitaxial layers due to ion damage from sputtering and ind…

cond-mat.mtrl-sci2026

Beta-AlGaO/Ga2O3 Tri-Gate MOSHEMT with 70GHz fT and 55GHz fmax

Noor Jahan Nipu, Chinmoy Nath Saha, Uttam Singisetti

We report Beta-AlGaO/Ga2O3 tri-gate heterostructure MOSHEMTs incorporating a thin 5 nm Al2O3 gate oxide layer for improved gate control and reduced leakage. The devices were fabric…

physics.app-ph2025

Electrical Stability of Cr2O3/\b{eta}-Ga2O3 and NiOx/\b{eta}-Ga2O3 Heterojunction Diodes

Yizheng Liu, Haochen Wang, Carl Peterson +3

This work reports the electrical characteristics comparison study between Cr2O3 and NiOx based heterojunction diodes (HJD) on halide vapor phase epitaxy (HVPE) grown \b{eta}-Ga2O3…

physics.app-ph2025

2.34 kV \b{eta}-Ga2O3 Vertical Trench RESURF Schottky Barrier Diode with sub-micron fin width

Chinmoy Nath Saha, Saurav Roy, Yizheng Liu +2

In this letter, we present a kilovolt-class \b{eta}-Ga2O3 vertical trench Schottky barrier diode with a field plate incorporating narrow fin width (Wfin) structures of sub-micron d…

physics.app-ph2025

Kilovolt-Class Field-Plated Schottky Barrier Diodes with MOCVD-Grown Intentionally Doped Drift Layers

Carl Peterson, Chinmoy Nath Saha, Rachel Kahler +4

We report on the growth optimization of intentionally low-doped ( ) high-quality drift layers up to 10 thick via MOCVD and the fabrication of kil…

cond-mat.mtrl-sci2025★ 1 cited

High performance vacuum annealed beta-(AlxGa1-x)2O3/Ga2O3 HFET with f_T/f_MAX of 32/65 GHz

Chinmoy Nath Saha, Noor Jahan Nipu, Uttam Singisetti

This letter reports high performance beta-(AlxGa1-x)2O3/Ga2O3 Heterostructure FET (HFET) with improved regrowth process. Highly scaled I shaped gate have been fabricated with degen…

cond-mat.mtrl-sci2023

Sub-100 nm β-Ga2O3 MOSFET with 55 GHz fMAX and >100 V breakdown

Chinmoy Nath Saha, Abhishek Vaidya, A F M Anhar Uddin Bhuiyan +3

This letter reports a highly scaled 90 nm gate length beta-Ga2O3 T-gate MOSFET with no current collapse and record power gain cut off frequency (fMAX). The epitaxial stack of 60 nm…

cond-mat.mtrl-sci2023

Electrical Characteristics of in situ Mg-doped beta-Ga2O3 Current-Blocking Layer for Vertical Devices

Sudipto Saha, Lingyu Meng, A F M Anhar Uddin Bhuiyan +4

The lack of p-type doping has impeded the development of vertical gallium oxide (Ga2O3) devices. Current blocking layers (CBL) using implanted deep acceptors has been used to demon…

cond-mat.mtrl-sci2022★ 1 cited

Beta-Ga2O3 MOSFETs with near 50 GHz fMAX and 5.4 MV/cm average breakdown field

Chinmoy Nath Saha, Abhishek Vaidya, A F M Anhar Uddin Bhuiyan +3

This letter reports high-performance $\mathrmβ Ga2O3 thin channel MOSFETs with T-gate and degenerately doped source/drain contacts regrown by MOCVD. Gate length scaling (LG= 160-20…