Results 111 to 120 of about 26,376 (228)

Nonalloyed Ohmic Formation for p-type AlGaN with p-type GaN Capping Layers Using Ohmic Recessed Technique

open access: yes, 2013
[[abstract]]In this study, we report that the p-type GaN (p-GaN) capping layer grown on top of p-type AlGaN (p-AlGaN) and the fabrication of recessed channels are used to demonstrate a new type of nonalloyed ohmic contact.
Lin, Yow-Jon
core  

Low Thermal Resistance Architectures for AlGaN‐Based Semiconductor Devices

open access: yesAdvanced Electronic Materials
Next‐generation high‐power radio‐frequency (RF) devices increasingly demand transistors that operate efficiently with high gain at high frequencies. High‐aluminum‐content ultrawide‐bandgap (UWBG) AlGaN alloys have shown great potential for enabling such ...
Kidus Guye   +6 more
doaj   +1 more source

Polarization effects simulation of AlGaN/GaN heterojunction by using a symbolistic delta-doping layer

open access: yes, 2004
Polarization effects in AlGaN/GaN heterojunction are simulated based on a traditional semiconductor device simulator. A delta doping layer is purposely inserted at the interface of the heterojunction in the simulation, so the ionized donors or acceptors ...
Li, N   +3 more
core  

Growth and characterization of AlGaN/AlN/GaN HEMT structures with a compositionally step-graded AlGaN barrier layer

open access: yes, 2007
A new AlGaN/AlN/GaN high electron mobility transistor (HEMT) structure using a compositionally step-graded AlGaN barrier layer is grown on sapphire by metalorganic chemical vapour deposition (MOCVD).
Luo WJ (Luo Wei-Jun)   +9 more
core  

Reliability Study of AlN Passivation Effects on AlGaN/GaN HEMT Using Fully-Coupled Self-Consistent Electro-Thermo-Mechanical Analysis

open access: yes, 2012
[[abstract]]In this study, the effect of AlN materials as passivation over AlGaN layer on AlGaN/GaN HEMTs performance was investigated using fully-coupled electro-thermo-mechanical analysis by TCAD simulations and analytic calculations. It found that AlN
Prabowo, Briliant Adhi
core  

Research on biomolecule-gate AlGaN/GaN high-electron-mobility transistor biosensors

open access: yes, 2014
In order to enhance the performance of AlGaN/GaN high electron mobility transistor (HEMT) biosensor, millimeter grade AlGaN/GaN HEMT structure have been designed and successfully fabricated.
Cheng, JJ (程珺洁)   +6 more
core  

Indium-doping enhanced two-dimensional-electron-gas performance in AlGaN/GaN heterostructures

open access: yes, 2000
Indium (In)-doping was applied in GaN layers during growth of AlGaN/GaN heterostructure with unintentionally doped or modulation Si-doped AlGaN layers.
Liu XL   +6 more
core  

Development of solar-blind AlGaN 128x128 ultraviolet focal plane arrays

open access: yes, 2008
This paper reports the development of solar-blind aluminum gallium nitride (AlGaN) 128x128 UV Focal Plane Arrays (FPAs). The back-illuminated hybrid FPA architecture consists of an 128x128 back-illuminated AlGaN PIN detector array that is bump-mounted to
Yuan, YG   +6 more
core  

Relationship between the growth rate and Al incorporation of AlGaN by metalorganic chemical vapor deposition

open access: yes, 2011
The growth rate and its relationship with growth conditions of AlGaN alloy films by metalorganic chemical vapor deposition (MOCVD) are investigated. It is found that both parasitic reaction and competitive adsorption play important roles in determining ...
Wang H (王辉)   +11 more
core  

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