Results 31 to 40 of about 3,063,705 (286)

Current Collapse-Free and Self-Heating Performances in Normally Off GaN Nanowire GAA-MOSFETs

open access: yesIEEE Journal of the Electron Devices Society, 2018
Normally off lateral GaN nanowire gate-all-around MOSFETs have been fabricated on the GaN-on-insulator substrate. The dynamic measurement proved that the devices with various nanowire heights exhibit current collapse-free characteristics implying that ...
Ki-Sik Im   +6 more
doaj   +1 more source

Solar‐Blind Ultrathin Sn‐Doped Polycrystalline Ga2O3 UV Phototransistor for Normally Off Operation

open access: yesAdvanced Photonics Research, 2022
Deep ultraviolet (DUV) photodetectors (PDs) based on ultrawide bandgap β‐Ga2O3 have great potential for aerospace, military, and civilian applications, especially because of their inherent solar blindness.
Youngbin Yoon   +2 more
doaj   +1 more source

Dynamic Behavior Improvement of Normally-Off p-GaN High-Electron-Mobility Transistor Through a Low-Temperature Microwave Annealing Process

open access: yesIEEE Journal of the Electron Devices Society, 2019
The surface morphology optimization of ohmic contacts and the Mg out-diffusion suppression of normally off p-GaN gate high-electron-mobility transistors (HEMTs) continue to be challenges in the power electronics industry in terms of the high-frequency ...
Hsien-Chin Chiu   +6 more
doaj   +1 more source

Study of Magnesium Activation Effect on Pinch-Off Voltage of Normally-Off p-GaN HEMTs for Power Applications

open access: yesCrystals, 2023
The role of the magnesium (Mg) doping and its electrical activation on the off-state of p-GaN/AlGaN/GaN HEMTs has been investigated in this work. Firstly, the effect of different Mg doping profiles has been studied via the help of Technology Computer ...
Giovanni Giorgino   +8 more
doaj   +1 more source

Quasi-Normally-Off AlGaN/GaN HEMTs With SiNₓ Stress Liner and Comb Gate for Power Electronics Applications

open access: yesIEEE Journal of the Electron Devices Society, 2020
Recess processes for the fabrication of normally-off GaN HEMTs generally compromise devices’ on-state performance. In this work, recess-free quasi-normally-off GaN HEMTs with a threshold voltage of 0.24 V is realized by local control of two ...
Wei-Chih Cheng   +5 more
doaj   +1 more source

Normally-Off AlGaN/GaN HEMTs With a Low Reverse Conduction Turn-On Voltage

open access: yesIEEE Access, 2023
Third quadrant operation is vital for power applications such as synchronous DC-DC converters and inverters, which require a low drain-source voltage drop to reduce conduction losses.
Dai-Jie Lin   +5 more
doaj   +1 more source

High-Performance Normally Off p-GaN Gate HEMT With Composite AlN/Al0.17Ga0.83N/Al0.3Ga0.7N Barrier Layers Design

open access: yesIEEE Journal of the Electron Devices Society, 2018
In this paper, a novel normally off p-gallium nitride (GaN) gate high electron-mobility transistor (HEMT) with composite AlN/Al0.17Ga0.83N/Al0.3Ga0.7N barrier layers is proposed.
Hsien-Chin Chiu   +6 more
doaj   +1 more source

Fabrication and characteristics of flexible normally-off AlGaN/GaN HEMTs

open access: yesAIP Advances, 2020
In this paper, we present a method for removing a high electron mobility transistor (HEMT) silicon substrate using mechanical grinding and deep silicon etching technology and successfully transferred the epitaxial wafer to a PET substrate to achieve the ...
Runze Lin   +9 more
doaj   +1 more source

Normally-off GaN Transistors for Power Applications

open access: yesJournal of Physics: Conference Series, 2014
Normally-off high voltage GaN-HFETs for switching applications are presented. Normally-off operation with threshold voltages of 1 V and more and with 5 V gate swing has been obtained by using p-type GaN as gate. Different GaN-based buffer types using doping and backside potential barriers have been used to obtain blocking strengths up to 1000 V.
Hilt, O.   +6 more
openaire   +1 more source

Normally-off p-GaN Gated AlGaN/GaN HEMTs Using Plasma Oxidation Technique in Access Region

open access: yesIEEE Journal of the Electron Devices Society, 2020
Normally-off p-GaN gated AlGaN/GaN high electron mobility transistors (HEMTs) were developed. Oxygen plasma treatment converted a low-resistive p-GaN layer in the access region to a high-resistive GaN (HR-GaN); that oxygen plasma treatment used an AlN ...
Xinke Liu   +8 more
doaj   +1 more source

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