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Related papers: 3 kV Monolithic Bidirectional GaN HEMT on Sapphire

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Despite considerable advancements, high electron mobility transistors (HEMTs) based on gallium nitride (GaN) channels remain largely limited to power applications below 650 V. For higher power demands, the ultra-wide bandgap semiconductor…

Nano-electronic integrated circuit technology is exclusively based on MOSFET transistor due to its scalability down to the nanometer range. On the other hand, Bipolar Junction Transistor (BJT), which provides unmatched analog…

Mesoscale and Nanoscale Physics · Physics 2021-08-03 Farshid Raissi , Mina Amirmazlaghani , Ali Rajabi

This paper introduces a robust Pareto design approach for transistor sizing of Gallium Nitride (GaN) High Electron Mobility Transistors (HEMTs), particularly for power amplifier (PA) and low-noise amplifier (LNA) designs in 5G applications.…

Systems and Control · Electrical Eng. & Systems 2025-02-27 Rafael Perez Martinez , Stephen Boyd , Srabanti Chowdhury

Transistors operating at high frequencies are the basic building blocks of millimeter-wave communication and sensor systems. The high velocity and mobility of carriers in graphene can open way for ultra-fast group IV transistors with…

Mesoscale and Nanoscale Physics · Physics 2022-01-03 Muhammad Asad , Saman Majdi , Andrei Vorobiev , Kjell Jeppson , Jan Isberg , Jan Stake

Ultrathin (~3 quintuple layer) field-effect transistors (FETs) of topological insulator Bi2Se3 are prepared by mechanical exfoliation on 300nm SiO2/Si susbtrates. Temperature- and gate-voltage dependent conductance measurements show that…

Mesoscale and Nanoscale Physics · Physics 2012-01-19 Sungjae Cho , Nicholas P. Butch , Johnpierre Paglione , Michael S. Fuhrer

In this letter, we demonstrate a lateral AlGaN/GaN Schottky barrier diode (SBD) on sapphire substrate with low turn-on voltage (Von) and high breakdown voltage (VBK). By using a double barrier anode (DBA) structure formed by the mixture of…

Device based on GaN have great potential for high power switching applications due to its high breakdown field and high electron mobility. In this work, we present the device design of a vertical GaN-on-GaN PN power diode using high…

A high threshold voltage enhancement-mode GaN HEMT with p-type doped buffer is discussed and simulated. Analytical expressions are derived to explain the role of buffer capacitance in designing and enhancing threshold voltage. Simulations…

Instrumentation and Detectors · Physics 2015-11-17 Sanyam Bajaj , Fatih Akyol , Sriram Krishnamoorthy , Ting-Hsiang Hung , Siddharth Rajan

Using recently available GaN FETs, a 600 Volt three-stage, multi-FET switch has been developed having 2 nanosecond rise time driving a 200 Ohm load with the potential of approaching 30 MHz average switching rates. Possible applications…

Accelerator Physics · Physics 2017-05-02 D. Frolov , H. Pfeffer , G. Saewert

We present a novel p-GaN gate HEMT structure with reduced hole concentration near the Schottky interface by doping engineering in MOCVD, which aims at lowering the electric field across the gate. By employing an additional unintentionally…

Applied Physics · Physics 2021-06-04 Guangnan Zhou , Fanming Zeng , Rongyu Gao , Qing Wang , Kai Cheng , Guangrui Xia , Hongyu Yu

We present a comprehensive investigation of self-heating in gallium nitride (GaN) high-electron-mobility transistors (HEMTs) through technology computer-aided design (TCAD) simulations and phonon Monte Carlo (MC) simulations. With…

Applied Physics · Physics 2024-01-25 Yang Shen , Bing-Yang Cao

For the first time, n-type few-layer MoS2 field-effect transistors with graphene/Ti as the hetero-contacts have been fabricated, showing more than 160 mA/mm drain current at 1 {\mu}m gate length with an on-off current ratio of 107. The…

Materials Science · Physics 2014-05-13 Yuchen Du , Lingming Yang , Jingyun Zhang , Han Liu , Kausik Majumdar , Paul D. Kirsch , Peide D. Ye

This work demonstrates high-performance vertical NiO/Ga2O3 heterojunction diodes (HJDs) with a 2-step space-modulated junction termination extension. Distinct from the current state-of-the-art Ga2O3 HJDs, we achieve breakdown voltage…

Applied Physics · Physics 2024-09-04 Advait Gilankar , Abishek Katta , Nabasindhu Das , Nidhin Kurian Kalarickal

Difficulties in obtaining high-performance p-type transistors and gate insulator charge-trapping effects present two major challenges for III-V complementary metal-oxide semiconductor (CMOS) electronics. We report a p-GaAs nanowire…

Mesoscale and Nanoscale Physics · Physics 2018-09-28 A. R. Ullah , F. Meyer , J. G. Gluschke , S. Naureen , P. Caroff , P. Krogstrup , J. Nygard , A. P. Micolich

The performance of ultra-wide band gap materials like $\beta$-Ga$_\mathrm{2}$O$_\mathrm{3}$ is critically dependent on achieving high average electric fields within the active region of the device. In this report, we show that high-k gate…

A dual-channel AlN/GaN/AlN/GaN high electron mobility transistor (HEMT) architecture is proposed, simulated, and demonstrated that suppresses gate lag due to surface-originated trapped charge. Dual two-dimensional electron gas (2DEG)…

Mesoscale and Nanoscale Physics · Physics 2017-01-04 David A. Deen , Ross Miller , Andrei Osinsky , Brian P. Downey , David F. Storm , David J. Meyer , D. Scott Katzer , Neeraj Nepal

The emerging wide bandgap BAlN alloys have potentials for improved III-nitride power devices including high electron mobility transistor (HEMT). Yet few relevant studies have been carried. In this work, we have investigated the use of the…

Applied Physics · Physics 2020-05-05 Rongyu Lin , Xinwei Liu , Kaikai Liu , Yi Lu , Xinke Liu , Xiaohang Li

An analysis of recent experimental data for high-performance In0.7Ga0.3As high electron mobility transistors (HEMTs) is presented. Using a fully quantum mechanical, ballistic model, we simulate In0.7Ga0.3As HEMTs with gate lengths of LG =…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Neophytos Neophytou , Titash Rakshit , Mark S. Lundstrom

In this letter, we report the operation of AlGaN/GaN HEMTs with Pd gates in air over a wide temperature range from 22$^\circ$C to 500$^\circ$C. The variation in the threshold voltage ($V_{th}$) is less than 1$\%$ over the entire temperature…

In this work, AlGaN/GaN HEMTs with dual-layer SiNx stressors (composed of a low-stress layer and a high-stress layer) were investigated. The low-stress padding layer solved the surface damage problem caused during the deposition of the…