Short Channel Gan Fet Mmic Technology For High Reliability Applications
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Short Channel Gan Fet Mmic Technology For High Reliability Applications Band 74
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Author : Konstantin Osipov
language : en
Publisher: Cuvillier Verlag
Release Date : 2024-02-07
Short Channel Gan Fet Mmic Technology For High Reliability Applications Band 74 written by Konstantin Osipov and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-07 with categories.
Nowdays GaN HEMT technology reached maturity level that allows industral fabrication of such devices for wide range of civil (telecommunications, power electrinics, automotive etc.), as well as space and military (phased array radars) applications. At this level, technology start reaching physical limits of GaN material and require new approaches that will allow to overcome some of well known problems related to GaN HEMTs, such as high gate leakage currents, reliability issues and difficulties of normally-off transistor fabrication. The goal of these theses is theoretical and experimental confirmation of the idea, that using peizoelectric nature of GaN crystal will allow local modification of GaN HEMT channel by means of external mechanical stress (using first and second passivation layers as stressors). After implementation of the proposed technology changes and new device geometry in process flow intended for 150 nm GaN HEMTMMIC fabrication, E/D devices with pinch-off voltages +0.1V and -1.65V respectively were fabricated on the same wafer within single process flow. It was observed, that E-mode devices, fabricated using compressed passivation layers, demonstrate lower gate leakage currents and more robust in HTRB test as compared to D-mode devices. In summary, it was demonstrated, that it is possible to control pinch-off voltage and gate leakage current of short channel GaN HEMTs by application of external stress. Usage of external stress, opens new degree of freedom in device optimization, and extends opportunities for more advanced MMIC design.
Untersuchung Der Degradation Von Inalgan Basierten Ultravioletten Leuchtdioden Zur Verbesserung Der Zuverl Ssigkeit Band 79
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Author : Johannes Glaab
language : de
Publisher: Cuvillier Verlag
Release Date : 2025-06-20
Untersuchung Der Degradation Von Inalgan Basierten Ultravioletten Leuchtdioden Zur Verbesserung Der Zuverl Ssigkeit Band 79 written by Johannes Glaab and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-06-20 with categories.
Diese Arbeit untersucht das betriebsinduzierte Degradationsverhalten von InAlGaN-basierten UV-C und UV-B LEDs. Durch Analyse des zeitlichen Verlaufs von elektroopti-schen Parametern, wie beispielsweise optische Leistung und Betriebsspannung, sowie Materialanalytischen Messungen konnten drei Degradationsmechanismen identifiziert werden, welche zu einer Reduktion der optischen Leistung der LEDs führen: Die Aktivie-rung von Magnesium-Wasserstoff-Komplexen, die Bildung von Punktdefekten in der akti-ven Zone, sowie die Diffusion von Punktdefekten in die aktive Zone. Optimierungen der Heterostruktur, des p-Dotierprofil und der Elektronenblockierschicht verbesserten die Lochinjektion und strahlende Rekombination, wodurch die initiale Leistung erhöht und die Lebensdauer der LEDs deutlich gesteigert werden konnte.
Iii Nitride Electronic Devices
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Author :
language : en
Publisher: Academic Press
Release Date : 2019-10-18
Iii Nitride Electronic Devices written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-18 with Science categories.
III-Nitride Electronic Devices, Volume 102, emphasizes two major technical areas advanced by this technology: radio frequency (RF) and power electronics applications. The range of topics covered by this book provides a basic understanding of materials, devices, circuits and applications while showing the future directions of this technology. Specific chapters cover Electronic properties of III-nitride materials and basics of III-nitride HEMT, Epitaxial growth of III-nitride electronic devices, III-nitride microwave power transistors, III-nitride millimeter wave transistors, III-nitride lateral transistor power switch, III-nitride vertical devices, Physics-Based Modeling, Thermal management in III-nitride HEMT, RF/Microwave applications of III-nitride transistor/wireless power transfer, and more. - Presents a complete review of III-Nitride electronic devices, from fundamental physics, to applications in two key technical areas – RF and power electronics - Outlines fundamentals, reviews state-of-the-art circuits and applications, and introduces current and emerging technologies - Written by a panel of academic and industry experts in each field
Nitride Semiconductor Technology
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Author : Fabrizio Roccaforte
language : en
Publisher: Wiley-VCH
Release Date : 2020-08-24
Nitride Semiconductor Technology written by Fabrizio Roccaforte and has been published by Wiley-VCH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-24 with Technology & Engineering categories.
The book "Nitride Semiconductor Technology" provides an overview of nitride semiconductors and their uses in optoelectronics and power electronics devices. It explains the physical properties of those materials as well as their growth methods. Their applications in high electron mobility transistors, vertical power devices, LEDs, laser diodes, and vertical-cavity surface-emitting lasers are discussed in detail. The book further examines reliability issues in these materials and puts forward perspectives of integrating them with 2D materials for novel high-frequency and high-power devices. In summary, it covers nitride semiconductor technology from materials to devices and provides the basis for further research.
Component Reliability For Electronic Systems
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Author : Titu I. Băjenescu
language : en
Publisher: Artech House
Release Date : 2010
Component Reliability For Electronic Systems written by Titu I. Băjenescu and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Technology & Engineering categories.
The main reason for the premature breakdown of today's electronic products (computers, cars, tools, appliances, etc.) is the failure of the components used to build these products. Today professionals are looking for effective ways to minimize the degradation of electronic components to help ensure longer-lasting, more technically sound products and systems. This practical book offers engineers specific guidance on how to design more reliable components and build more reliable electronic systems. Professionals learn how to optimize a virtual component prototype, accurately monitor product reliability during the entire production process, and add the burn-in and selection procedures that are the most appropriate for the intended applications. Moreover, the book helps system designers ensure that all components are correctly applied, margins are adequate, wear-out failure modes are prevented during the expected duration of life, and system interfaces cannot lead to failure.
Chemical Abstracts
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Author :
language : en
Publisher:
Release Date : 2002
Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Chemistry categories.
International Aerospace Abstracts
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Author :
language : en
Publisher:
Release Date : 1999
International Aerospace Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Aeronautics categories.
Microwave Journal
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Author :
language : en
Publisher:
Release Date : 2008
Microwave Journal written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Microwaves categories.
Encyclopedia Of Materials
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Author : K. H. J. Buschow
language : en
Publisher:
Release Date : 2001
Encyclopedia Of Materials written by K. H. J. Buschow and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Materials categories.
Accompanyind CR-ROM conrtains The Encyclopedia of Materials Science and Technology on a web access disc.
Microwave Circuit Design Using Linear And Nonlinear Techniques
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Author : George D. Vendelin
language : en
Publisher: John Wiley & Sons
Release Date : 2005-10-03
Microwave Circuit Design Using Linear And Nonlinear Techniques written by George D. Vendelin and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-10-03 with Technology & Engineering categories.
The ultimate handbook on microwave circuit design with CAD. Full of tips and insights from seasoned industry veterans, Microwave Circuit Design offers practical, proven advice on improving the design quality of microwave passive and active circuits-while cutting costs and time. Covering all levels of microwave circuit design from the elementary to the very advanced, the book systematically presents computer-aided methods for linear and nonlinear designs used in the design and manufacture of microwave amplifiers, oscillators, and mixers. Using the newest CAD tools, the book shows how to design transistor and diode circuits, and also details CAD's usefulness in microwave integrated circuit (MIC) and monolithic microwave integrated circuit (MMIC) technology. Applications of nonlinear SPICE programs, now available for microwave CAD, are described. State-of-the-art coverage includes microwave transistors (HEMTs, MODFETs, MESFETs, HBTs, and more), high-power amplifier design, oscillator design including feedback topologies, phase noise and examples, and more. The techniques presented are illustrated with several MMIC designs, including a wideband amplifier, a low-noise amplifier, and an MMIC mixer. This unique, one-stop handbook also features a major case study of an actual anticollision radar transceiver, which is compared in detail against CAD predictions; examples of actual circuit designs with photographs of completed circuits; and tables of design formulae.