Download or read book Design and Fabrication of Gallium Nitride silicon Carbide Heterojunction Bipolar Transistors written by Hong Wu and published by . This book was released on 2003 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Temperature and High Gain Gallium Nitride silicon Carbide Heterojunction Bipolar Transistors written by Shih-shun Chang and published by . This book was released on 1996 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gallium Nitride And Silicon Carbide Power Devices written by B Jayant Baliga and published by World Scientific Publishing Company. This book was released on 2016-12-12 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 30 years, significant progress has been made to improve our understanding of gallium nitride and silicon carbide device structures, resulting in experimental demonstration of their enhanced performances for power electronic systems. Gallium nitride power devices made by the growth of the material on silicon substrates have gained a lot of interest. Power device products made from these materials have become available during the last five years from many companies.This comprehensive book discusses the physics of operation and design of gallium nitride and silicon carbide power devices. It can be used as a reference by practicing engineers in the power electronics industry and as a textbook for a power device or power electronics course in universities.
Download or read book A Study of Aluminium Gallium Nitride gallium Nitride Polarization Barriers Aluminium Gallium Nitride silicon Carbide Heterojunction Bipolar Transistors and Polarization based Ohmic Contacts written by Choudhury Jayant Praharaj and published by . This book was released on 2004 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three perpendicular-transport structures using wide band-gap semiconductors were studied. A 50 A thick Aluminium Gallium Nitride polarization barrier showed rectifying characteristics as predicted by theory. Heterojunction Bipolar Transistors using n-Gallium Nitride/p-Silicon Carbide emitter and n-Aluminium Gallium Nitride/p-Gallium Nitride/p-Silicon Carbide emitter, and Silicon Carbide collector, were fabricated and characterized for current gain. The Heterojunction Bipolar Transistor with n-Gallium Nitride/p-Silicon Carbide emitter showed no modulation of output current with input current due to small unrecombined electron currents and large collector-base leakage currents. The Heterojunction Bipolar Transistor with n-Aluminium Gallium Nitride/p-Gallium Nitride/p-Silicon Carbide emitter had a current gain of 0.02. Ohmic contacts to p-type Gallium Nitride using Indium Gallium Nitride cap layers and to p-type Aluminium Gallium Nitride using Gallium Nitride cap layers were designed. Large improvements in ohmic contact resistances were predicted over ohmic contacts to bulk p-type nitride materials in the absence of cap layers.
Download or read book Design and Fabrication of GaN based Heterojunction Bipolar Transistors written by Kyu-Pil Lee and published by . This book was released on 2003 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Aluminum Gallium Nitride gallium Nitride Polarization Barriers Aluminum Gallium Nitride silicon Carbide Heterojunction Bipolar Transistors and Polarization based Ohmic Contacts written by Choudhury Jayant Praharaj and published by . This book was released on 2004 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Realization of Bipolar Transistors written by Peter Ashburn and published by . This book was released on 1988-08-18 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses new developments in the design and fabrication of bipolar transistors for high-speed digital circuits. Covers advances in silicon technology (such as polysilicon emitters and self-aligned fabrication techniques), gallium arsenide technology (such as extremely high-performance MSI circuits resulting from the development of GaAs/GaAlAs heterojunctions), and new applications of bipolar transistors (such as optoelectronic circuits). Also deals with optimization of bipolar devices and processes for high-speed, digital circuits by means of a quasi-analytical expression for the gate delay of an ECL logic gate. Includes case studies.
Download or read book Gallium Nitride GaN written by Farid Medjdoub and published by CRC Press. This book was released on 2017-12-19 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses a Growing Need for High-Power and High-Frequency Transistors Gallium Nitride (GaN): Physics, Devices, and Technology offers a balanced perspective on the state of the art in gallium nitride technology. A semiconductor commonly used in bright light-emitting diodes, GaN can serve as a great alternative to existing devices used in microelectronics. It has a wide band gap and high electron mobility that gives it special properties for applications in optoelectronic, high-power, and high-frequency devices, and because of its high off-state breakdown strength combined with excellent on-state channel conductivity, GaN is an ideal candidate for switching power transistors. Explores Recent Progress in High-Frequency GaN Technology Written by a panel of academic and industry experts from around the globe, this book reviews the advantages of GaN-based material systems suitable for high-frequency, high-power applications. It provides an overview of the semiconductor environment, outlines the fundamental device physics of GaN, and describes GaN materials and device structures that are needed for the next stage of microelectronics and optoelectronics. The book details the development of radio frequency (RF) semiconductor devices and circuits, considers the current challenges that the industry now faces, and examines future trends. In addition, the authors: Propose a design in which multiple LED stacks can be connected in a series using interband tunnel junction (TJ) interconnects Examine GaN technology while in its early stages of high-volume deployment in commercial and military products Consider the potential use of both sunlight and hydrogen as promising and prominent energy sources for this technology Introduce two unique methods, PEC oxidation and vapor cooling condensation methods, for the deposition of high-quality oxide layers A single-source reference for students and professionals, Gallium Nitride (GaN): Physics, Devices, and Technology provides an overall assessment of the semiconductor environment, discusses the potential use of GaN-based technology for RF semiconductor devices, and highlights the current and emerging applications of GaN.
Download or read book Gallium Nitride and Silicon Carbide Power Technologies written by K. Shenai and published by The Electrochemical Society. This book was released on 2011 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design and Fabrication of 4H Silicon Carbide Power Bipolar Junction Transistors written by Jianhui Zhang and published by . This book was released on 2006 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: 4H silicon carbide (4H-SiC) bipolar junction transistor (BJT) is a very promising wide band gap semiconductor switching device for high temperature and high power applications. The superior material properties of 4H-SiC, including wide band gap, high breakdown electric field, high thermal conductivity make 4H-SiC ideal for power electronics applications. 4H-SiC power BJT is an intrinsically normally-off switching device, has higher current handling capabilities due to its bipolar character, and is free of the gate oxide problems as in 4H-SiC metal-oxide-semiconductor field effect transistor (MOSFET). Moreover, 4H-SiC BJT easily surpasses silicon BJT with higher current gain, much larger safe-operating-area (SOA) and free of thermal breakdown problem. 4H-SiC power BJT has been gaining more and more attentions since it was first reported in 2000.
Download or read book Gallium Nitride and Silicon Carbide Power Technologies 4 written by K. Shenai and published by The Electrochemical Society. This book was released on with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silicon germanium Heterojunction Bipolar Transistors written by John D. Cressler and published by Artech House. This book was released on 2003 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: This informative, new resource presents the first comprehensive treatment of silicon-germanium heterojunction bipolar transistors (SiGe HBTs). It offers you a complete, from-the-ground-up understanding of SiGe HBT devices and technology, from a very broad perspective. The book covers motivation, history, materials, fabrication, device physics, operational principles, and circuit-level properties associated with this new cutting-edge semiconductor device technology. Including over 400 equations and more than 300 illustrations, this hands-on reference shows you in clear and concise language how to design, simulate, fabricate, and measure a SiGe HBT.
Download or read book Wide Bandgap Semiconductor Power Devices written by B. Jayant Baliga and published by Woodhead Publishing. This book was released on 2018-10-17 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wide Bandgap Semiconductor Power Devices: Materials, Physics, Design and Applications provides readers with a single resource on why these devices are superior to existing silicon devices. The book lays the groundwork for an understanding of an array of applications and anticipated benefits in energy savings. Authored by the Founder of the Power Semiconductor Research Center at North Carolina State University (and creator of the IGBT device), Dr. B. Jayant Baliga is one of the highest regarded experts in the field. He thus leads this team who comprehensively review the materials, device physics, design considerations and relevant applications discussed. - Comprehensively covers power electronic devices, including materials (both gallium nitride and silicon carbide), physics, design considerations, and the most promising applications - Addresses the key challenges towards the realization of wide bandgap power electronic devices, including materials defects, performance and reliability - Provides the benefits of wide bandgap semiconductors, including opportunities for cost reduction and social impact
Download or read book Demonstration and Modeling of a Nitride based Heterojunction Bipolar Transistor Using Nanomembrane Transfer written by Clincy Cheung and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterojunction bipolar transistors (HBT) are sought as a building block for implementation of modern broadband electronics, defense applications, and other mm-wave electronic systems demanding in high-speed and high-power performance. The push for greater frequency performance, higher power densities and reliability have pushed research towards wide-bandgap materials such as Gallium Nitride (GaN) given its superior intrinsic material properties, providing for higher breakdown voltage, and enabling higher power performance. However, GaN faces a fundamental limitation with p-type doping, limiting its adoption in RF power electronics. Attempts at a wide bandgap HBT to-date has exclusively relied on epitaxial growth using metal-organic chemical vapor deposition or molecular beam epitaxy (MBE) to fabricate a GaN-based transistor; however, none have yielded a device with both sufficient current gain and transition frequency - both key measures of performance in a bipolar transistor. Alternative materials for the different HBT layers have been considered but are limited by significant lattice mismatch. To bypass p-type GaN limitations and improve the base-collector junction with minimal interface trap density, a nanomembrane interlayer device transfer is proposed as an alternative for fabrication of an HBT. There are two aims in this dissertation: to demonstrate an experimental HBT with a sufficient current gain above 20 and demonstrate using computer-aided modeling that sufficient frequency performance can be achieved - both to demonstrate that a wide-bandgap HBT is both possible and worth further exploration for RF electronics. In Chapter 1, the landscape of research into wide-bandgap bipolar transistors is presented. In Chapter 2, multiple methods of integration for different diode pairs within the HBT are evaluated for probability of success in the overall device, where a GaAs-GaN base-collector diode is demonstrated to have the best performance using nanomembrane layer transfer. Additionally, an MBE-grown AlGaAs-GaAs film stack was transferred and demonstrated an emitter-base structure can be transferred with no degradation in performance. In Chapter 3, fabrication of the HBT is demonstrated using the best methods selected from Chapter 2, where a AlGaAs-GaAs-GaN HBT was demonstrated to have a current gain greater than 70. In Chapter 4, technology computer-aided design simulations were developed to validate the DC results shown in Chapter 2 and 3, and simulated transition frequencies of at least 60 GHz for the experimental structure fabricated in Chapter 3. Finally, in Chapter 5, next steps are outlined for exploration beyond this initial proof-of-concept device. Taken altogether, this dissertation serves to demonstrate a device structure with the potential to vastly exceed existing solutions that can be applied to a vast array of wide-bandgap materials without being limited by its p-type analogues, enabling performance for a wide array of applications in the next generations of electronics.
Download or read book Wide Energy Bandgap Electronic Devices written by Fan Ren and published by World Scientific. This book was released on 2003 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents state-of-the-art GaN and SiC electronic devices, as well as detailed applications of these devices to power conditioning, r. f. base station infrastructure and high temperature electronics.
Download or read book Design and Fabrication of Lateral Silicon Germanium Heterojunction Bipolar Transistors written by Putapon Pengpad and published by . This book was released on 2008 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Fabrication and Analysis of a Gallium Arsenide Heterojunction Bipolar Transistor written by Edward David Goff and published by . This book was released on 1991 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
