Publications by Minghua Zhu | EPFL Graph Search

Related publications (12)

Nanoplasma-enabled picosecond switches for ultrafast electronics

Elison de Nazareth Matioli, Armin Jafari, Mohammad Samizadeh Nikooytabalvandani, Palliyage Srilak Nirmana Perera, Minghua Zhu, Giovanni Santoruvo

The broad applications of ultrawide-band signals and terahertz waves in quantum measurements, imaging and sensing techniques, advanced biological treatments, and very-high-data-rate communications have drawn extensive attention to ultrafast electronics. In ...

2020

Enhancement Mode Tri-gate GaN Power Devices and Logic Circuits

Minghua Zhu

Gallium Nitride (GaN) is one of the most promising materials for high frequency power switching due to its exceptional properties such as large saturation velocity, high carrier mobility, and high breakdown field strength. The high switching frequency of G ...

EPFL2021

High-Voltage Normally-off Recessed Tri-Gate GaN Power MOSFETs With Low on-Resistance

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Catherine Erine, Minghua Zhu

In this letter, we present normally-off GaN-on-Si MOSFETs based on the combination of tri-gate with a short barrier recess to yield a large positive threshold voltage (VTH) while maintaining a low specific on resistance (R ON,SP ) and high current density ...

Institute of Electrical and Electronics Engineers2019

Resonances on GaN-on-Si Epitaxies: A Source of Output Capacitance Losses in Power HEMTs

Elison de Nazareth Matioli, Armin Jafari, Mohammad Samizadeh Nikooytabalvandani, Riyaz Mohammed Abdul Khadar, Minghua Zhu

GaN-on-Si high-electron-mobility transistors (HEMTs) exhibit excellent properties for efficient power conversion. Nevertheless, a considerable energy loss associated with the charging and discharging of the output capacitance (COSS) in these transistors se ...

Institute of Electrical and Electronics Engineers2021

P-GaN Tri-Gate MOS Structure for Normally-Off GaN Power Transistors

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Mohammad Samizadeh Nikooytabalvandani, Catherine Erine, Minghua Zhu, Pirouz Sohi

In this letter, we present a new concept for normally-off AlGaN/GaN-on-Si MOS-HEMTs based on the combination of p-GaN, tri-gate and MOS structures to achieve high threshold voltage (V-TH) and low on-resistance (R-ON). The p-GaN is used to engineer the band ...

Institute of Electrical and Electronics Engineers2021

High-performance normally-off tri-gate GaN power MOSFETs

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Minghua Zhu

In this work, we present the investigation of the combination of gate recess and tri-gate structures to achieve high performance normally-off GaN-on-Si MOSFETs with high positive threshold voltage ( VTH ), low specific on resistance ( RON,SP ) and high out ...

IEEE2019

High-performance nanowire-based E-mode Power GaN MOSHEMTs with large workfunction gate metal

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Minghua Zhu

In this work, we demonstrate high-performance Enhancement-mode (E-mode) GaN Metal-Oxide-Semiconductor High Electron Mobility Transistors (MOS-HEMTs) on Si substrate based on sidewall depletion achieved by nanostructured gate with large work-function metal. ...

Institute of Electrical and Electronics Engineers2019

Investigation of p-GaN tri-Gate normally-Off GaN Power MOSHEMTs

Elison de Nazareth Matioli, Jun Ma, Minghua Zhu

In this work, we present the investigation of the combination of p-GaN gate and tri-gate structures to achieve normally-off operation on GaN-on-Si MOSFETs. We have developed and optimized a selective and low-damage p-GaN etching recipe to stop at the AlGaN ...

IEEE2020

Monolithic integration of GaN-based NMOS digital logic gate circuits with E-mode power GaN MOSHEMTs

Elison de Nazareth Matioli, Minghua Zhu

In this work, we demonstrate high-performance NMOS GaN-based logic gates including NOT, NAND, and NOR by integration of E/D-mode GaN MOSHEMTs on silicon substrates. The load-to-driver resistance ratio was optimized in these logic gates by using a multi-fin ...

2018

High-performance nanowire-based E-mode Power GaN MOSHEMTs

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Minghua Zhu

In this work, we demonstrate high-performance Enhancement-mode (E-mode) GaN Metal-Oxide-Semiconductor High Electron Mobility Transistors (MOS-HEMTs) on Si substrate achieved by a nanostructured gate region in combination with a large work-function gate met ...

IEEE2019

900 V Reverse-Blocking GaN-on-Si MOSHEMTs With a Hybrid Tri-Anode Schottky Drain

Elison de Nazareth Matioli, Jun Ma, Minghua Zhu

In this letter, we present high-performance GaN-on-Si metal-oxide-semiconductor high electron mobility transistors with record reverse-blocking (RB) capability. By replacing the conventional ohmic drain with a hybrid tri-anode Schottky drain, a high revers ...

Institute of Electrical and Electronics Engineers2017

1200 V Multi-Channel Power Devices with 2.8 Ω•mm ON-Resistance

Elison de Nazareth Matioli, Jun Ma, Luca Nela, Catherine Erine, Minghua Zhu

Here we report novel multi-channel AlGaN/GaN MOSHEMTs with high breakdown voltage (V BR ) and low ON-resistance (R ON ). The multi-channel structure was judiciously designed to yield a small sheet resistance (R s ) of 80 Ω/sq using only four 2DEG channels, ...

IEEE2019