High Speed GaAs Device and Integrated Circuit Modelling and Simulation

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Publisher :
ISBN 13 :
Total Pages : 450 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis High Speed GaAs Device and Integrated Circuit Modelling and Simulation by : Tzu-Hung Chen

Download or read book High Speed GaAs Device and Integrated Circuit Modelling and Simulation written by Tzu-Hung Chen and published by . This book was released on 1984 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design and Simulation of Ultra High Speed GaAs Integrated Circuits

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Publisher :
ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Design and Simulation of Ultra High Speed GaAs Integrated Circuits by : Philip Nord Jenkins

Download or read book Design and Simulation of Ultra High Speed GaAs Integrated Circuits written by Philip Nord Jenkins and published by . This book was released on 1989 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Gallium Arsenide Digital Circuits

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Publisher : Springer Science & Business Media
ISBN 13 : 1461315417
Total Pages : 198 pages
Book Rating : 4.4/5 (613 download)

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Book Synopsis Gallium Arsenide Digital Circuits by : Omar Wing

Download or read book Gallium Arsenide Digital Circuits written by Omar Wing and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallium Arsenide technology has come of age. GaAs integrated circuits are available today as gate arrays with an operating speed in excess of one Gigabits per second. Special purpose GaAs circuits are used in optical fiber digital communications systems for the purpose of regeneration, multiplexing and switching of the optical signals. As advances in fabrication and packaging techniques are made, the operat ing speed will further increase and the cost of production will reach a point where large scale application of GaAs circuits will be economical in these and other systems where speed is paramount. This book is written for students and engineers who wish to enter into this new field of electronics for the first time and who wish to embark on a serious study of the subject of GaAs circuit design. No prior knowledge of GaAs technology is assumed though some previous experience with MOS circuit design will be helpful. A good part of the book is devoted to circuit analysis, to the extent that is possible for non linear circuits. The circuit model of the GaAs transistor is derived from first principles and analytic formulas useful in predicting the approxi mate circuit performance are also derived. Computer simulation is used throughout the book to show the expected performance and to study the effects of parameter variations.

Semiconductor Device Modelling

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Publisher : Springer Science & Business Media
ISBN 13 : 1447110331
Total Pages : 267 pages
Book Rating : 4.4/5 (471 download)

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Book Synopsis Semiconductor Device Modelling by : Christopher M. Snowden

Download or read book Semiconductor Device Modelling written by Christopher M. Snowden and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 267 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor device modelling has developed in recent years from being solely the domain of device physicists to span broader technological disciplines involved in device and electronic circuit design and develop ment. The rapid emergence of very high speed, high density integrated circuit technology and the drive towards high speed communications has meant that extremely small-scale device structures are used in contempor ary designs. The characterisation and analysis of these devices can no longer be satisfied by electrical measurements alone. Traditional equivalent circuit models and closed-form analytical models cannot always provide consis tently accurate results for all modes of operation of these very small devices. Furthermore, the highly competitive nature of the semiconductor industry has led to the need to minimise development costs and lead-time associated with introducing new designs. This has meant that there has been a greater demand for models capable of increasing our understanding of how these devices operate and capable of predicting accurate quantitative results. The desire to move towards computer aided design and expert systems has reinforced the need for models capable of representing device operation under DC, small-signal, large-signal and high frequency operation. It is also desirable to relate the physical structure of the device to the electrical performance. This demand for better models has led to the introduction of improved equivalent circuit models and a upsurge in interest in using physical models.

GaAs High-Speed Devices

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Publisher : John Wiley & Sons
ISBN 13 : 047185641X
Total Pages : 642 pages
Book Rating : 4.4/5 (718 download)

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Book Synopsis GaAs High-Speed Devices by : C. Y. Chang

Download or read book GaAs High-Speed Devices written by C. Y. Chang and published by John Wiley & Sons. This book was released on 1994-10-28 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of high-speed semiconductor devices—the genius driving digital computers, advanced electronic systems for digital signal processing, telecommunication systems, and optoelectronics—is inextricably linked to the unique physical and electrical properties of gallium arsenide. Once viewed as a novel alternative to silicon, gallium arsenide has swiftly moved into the forefront of the leading high-tech industries as an irreplaceable material in component fabrication. GaAs High-Speed Devices provides a comprehensive, state-of-the-science look at the phenomenally expansive range of engineering devices gallium arsenide has made possible—as well as the fabrication methods, operating principles, device models, novel device designs, and the material properties and physics of GaAs that are so keenly integral to their success. In a clear five-part format, the book systematically examines each of these aspects of GaAs device technology, forming the first authoritative study to consider so many important aspects at once and in such detail. Beginning with chapter 2 of part one, the book discusses such basic subjects as gallium arsenide materials and crystal properties, electron energy band structures, hole and electron transport, crystal growth of GaAs from the melt and defect density analysis. Part two describes the fabrication process of gallium arsenide devices and integrated circuits, shedding light, in chapter 3, on epitaxial growth processes, molecular beam epitaxy, and metal organic chemical vapor deposition techniques. Chapter 4 provides an introduction to wafer cleaning techniques and environment control, wet etching methods and chemicals, and dry etching systems, including reactive ion etching, focused ion beam, and laser assisted methods. Chapter 5 provides a clear overview of photolithography and nonoptical lithography techniques that include electron beam, x-ray, and ion beam lithography systems. The advances in fabrication techniques described in previous chapters necessitate an examination of low-dimension device physics, which is carried on in detail in chapter 6 of part three. Part four includes a discussion of innovative device design and operating principles which deepens and elaborates the ideas introduced in chapter 1. Key areas such as metal-semiconductor contact systems, Schottky Barrier and ohmic contact formation and reliability studies are examined in chapter 7. A detailed discussion of metal semiconductor field-effect transistors, the fabrication technology, and models and parameter extraction for device analyses occurs in chapter 8. The fifth part of the book progresses to an up-to-date discussion of heterostructure field-effect (HEMT in chapter 9), potential-effect (HBT in chapter 10), and quantum-effect devices (chapters 11 and 12), all of which are certain to have a major impact on high-speed integrated circuits and optoelectronic integrated circuit (OEIC) applications. Every facet of GaAs device technology is placed firmly in a historical context, allowing readers to see instantly the significant developmental changes that have shaped it. Featuring a look at devices still under development and device structures not yet found in the literature, GaAs High-Speed Devices also provides a valuable glimpse into the newest innovations at the center of the latest GaAs technology. An essential text for electrical engineers, materials scientists, physicists, and students, GaAs High-Speed Devices offers the first comprehensive and up-to-date look at these formidable 21st century tools. The unique physical and electrical properties of gallium arsenide has revolutionized the hardware essential to digital computers, advanced electronic systems for digital signal processing, telecommunication systems, and optoelectronics. GaAs High-Speed Devices provides the first fully comprehensive look at the enormous range of engineering devices gallium arsenide has made possible as well as the backbone of the technology—ication methods, operating principles, and the materials properties and physics of GaAs—device models and novel device designs. Featuring a clear, six-part format, the book covers: GaAs materials and crystal properties Fabrication processes of GaAs devices and integrated circuits Electron beam, x-ray, and ion beam lithography systems Metal-semiconductor contact systems Heterostructure field-effect, potential-effect, and quantum-effect devices GaAs Microwave Monolithic Integrated Circuits and Digital Integrated Circuits In addition, this comprehensive volume places every facet of the technology in an historical context and gives readers an unusual glimpse at devices still under development and device structures not yet found in the literature.

GaAs Devices and Circuits

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Publisher : Springer Science & Business Media
ISBN 13 : 1489919899
Total Pages : 677 pages
Book Rating : 4.4/5 (899 download)

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Book Synopsis GaAs Devices and Circuits by : Michael S. Shur

Download or read book GaAs Devices and Circuits written by Michael S. Shur and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: GaAs devices and integrated circuits have emerged as leading contenders for ultra-high-speed applications. This book is intended to be a reference for a rapidly growing GaAs community of researchers and graduate students. It was written over several years and parts of it were used for courses on GaAs devices and integrated circuits and on heterojunction GaAs devices developed and taught at the University of Minnesota. Many people helped me in writing this book. I would like to express my deep gratitude to Professor Lester Eastman of Cornell University, whose ideas and thoughts inspired me and helped to determine the direction of my research work for many years. I also benefited from numerous discussions with his students and associates and from the very atmosphere of the pursuit of excellence which exists in his group. I would like to thank my former and present co-workers and colleagues-Drs. Levinstein and Gelmont of the A. F. Ioffe Institute of Physics and Technology, Professor Melvin Shaw of Wayne State University, Dr. Kastalsky of Bell Communi cations, Professor Gary Robinson of Colorado State University, Professor Tony Valois, and Dr. Tim Drummond of Sandia Labs-for their contributions to our joint research and for valuable discussions. My special thanks to Professor Morko.;, for his help, his ideas, and the example set by his pioneering work. Since 1978 I have been working with engineers from Honeywell, Inc.-Drs.

FinFET/GAA Modeling for IC Simulation and Design

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Publisher : Elsevier
ISBN 13 : 0323958230
Total Pages : 326 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis FinFET/GAA Modeling for IC Simulation and Design by : Yogesh Singh Chauhan

Download or read book FinFET/GAA Modeling for IC Simulation and Design written by Yogesh Singh Chauhan and published by Elsevier. This book was released on 2024-08-30 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: FinFET/GAA Modeling for IC Simulation and Design: Using the BSIM-CMG Standard, Second Edition is the first to book to explain FinFET modeling for IC simulation and the industry standard – BSIM-CMG - describing the rush in demand for advancing the technology from planar to 3D architecture as now enabled by the approved industry standard. The book gives a strong foundation on the physics and operation of FinFET, details aspects of the BSIM-CMG model such as surface potential, charge and current calculations, and includes a dedicated chapter on parameter extraction procedures, thus providing a step-by-step approach for the efficient extraction of model parameters. With this book, users will learn Why you should use FinFET, The physics and operation of FinFET Details of the FinFET standard model (BSIM-CMG), Parameter extraction in BSIM-CMG FinFET circuit design and simulation, and more. Authored by the lead inventor and developer of FinFET and developers of the BSIM-CMG standard model, providing an expert’s insight into the specifications of the standard A new edition of the original groundbreaking book on the industry-standard FinFET model—BSIM-CMG New to This Edition Includes a new chapter providing a comprehensive introduction to GAAFET, including motivations, device concepts, structure, benefits, and the industry standard GAAFET model Covers the most recent developments in the BSIM-CMG model Presents an updated RF modeling of FinFET using the BSIM-CMG model including parameter extraction Includes a new chapter on cryogenic modeling

GaAs Microelectronics

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Publisher : Academic Press
ISBN 13 : 1483217779
Total Pages : 472 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis GaAs Microelectronics by : Norman G. Einspruch

Download or read book GaAs Microelectronics written by Norman G. Einspruch and published by Academic Press. This book was released on 2014-12-01 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: VLSI Electronics Microstructure Science, Volume 11: GaAs Microelectronics presents the important aspects of GaAs (Gallium Arsenide) IC technology development ranging from materials preparation and IC fabrication to wafer evaluation and chip packaging. The volume is comprised of eleven chapters. Chapter 1 traces the historical development of GaAs technology for high-speed and high-frequency applications. This chapter summarizes the important properties of GaAs that serve to make this material and its related compounds technologically important. Chapter 2 covers GaAs substrate growth, ion implantation and annealing, and materials characterization, technologies that are essential for IC development. Chapters 3-6 describe the various IC technologies that are currently under development. These include microwave and digital MESFET ICs, the most mature technologies, and bipolar and field-effect heterostructure transistor ICs. The high-speed capability of GaAs ICs introduces new problems, on-wafer testing and packaging. These topics are discussed in Chapters 7 and 8. Applications for GaAs ICs are covered in Chapters 9 and 10. The first of these chapters is concerned with high speed computer applications; the second addresses military applications. The book concludes with a chapter on radiation effects in GaAs ICs. Scientists, engineers, researchers, device designers, and systems architects will find the book useful.

High-Speed VLSI Interconnections

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Publisher : John Wiley & Sons
ISBN 13 : 0470165960
Total Pages : 433 pages
Book Rating : 4.4/5 (71 download)

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Book Synopsis High-Speed VLSI Interconnections by : Ashok K. Goel

Download or read book High-Speed VLSI Interconnections written by Ashok K. Goel and published by John Wiley & Sons. This book was released on 2007-10-19 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Second Edition focuses on emerging topics and advances in the field of VLSI interconnections In the decade since High-Speed VLSI Interconnections was first published, several major developments have taken place in the field. Now, updated to reflect these advancements, this Second Edition includes new information on copper interconnections, nanotechnology circuit interconnects, electromigration in the copper interconnections, parasitic inductances, and RLC models for comprehensive analysis of interconnection delays and crosstalk. Each chapter is designed to exist independently or as a part of one coherent unit, and several appropriate exercises are provided at the end of each chapter, challenging the reader to gain further insight into the contents being discussed. Chapter subjects include: * Preliminary Concepts * Parasitic Resistances, Capacitances, and Inductances * Interconnection Delays * Crosstalk Analysis * Electromigration-Induced Failure Analysis * Future Interconnections High-Speed VLSI Interconnections, Second Edition is an indispensable reference for high-speed VLSI designers, RF circuit designers, and advanced students of electrical engineering.

High-speed Circuits for Lightwave Communications

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Publisher : World Scientific
ISBN 13 : 9789810235369
Total Pages : 376 pages
Book Rating : 4.2/5 (353 download)

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Book Synopsis High-speed Circuits for Lightwave Communications by : Keh-Chung Wang

Download or read book High-speed Circuits for Lightwave Communications written by Keh-Chung Wang and published by World Scientific. This book was released on 1999 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: High speed circuits are crucial for increasing the bandwidth of transmission and switching of voice/video/data over optical fiber networks. The ever-increasing demand for bit rates higher than those available due to the explosion of Internet traffic has driven engineers to develop integrated circuits of performance approaching 100 Gb/s. Commercial lightwave products using high speed circuits of 10 Gb/s and beyond are readily available.High Speed Circuits for Lightwave Communications presents the latest information on circuit design, measured results, applications, and product development. It covers electronic and opto-electronic circuits for transmission, receiving, and cross-point switching. These circuits were implemented with various state-of-the-art IC technologies, including Si BJT, GaAs MESFET, HEMT, HBT, as well as InP HEMT and HBT. The book, written by more than 50 experts, will benefit graduate students, researchers, and engineers who are interested in or work in this exciting and challenging field of optical communications.

ESD Design for Analog Circuits

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Publisher : Springer Science & Business Media
ISBN 13 : 1441965653
Total Pages : 473 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis ESD Design for Analog Circuits by : Vladislav A. Vashchenko

Download or read book ESD Design for Analog Circuits written by Vladislav A. Vashchenko and published by Springer Science & Business Media. This book was released on 2010-07-27 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Book and Simulation Software Bundle Project Dear Reader, this book project brings to you a unique study tool for ESD protection solutions used in analog-integrated circuit (IC) design. Quick-start learning is combined with in-depth understanding for the whole spectrum of cro- disciplinary knowledge required to excel in the ESD ?eld. The chapters cover technical material from elementary semiconductor structure and device levels up to complex analog circuit design examples and case studies. The book project provides two different options for learning the material. The printed material can be studied as any regular technical textbook. At the same time, another option adds parallel exercise using the trial version of a complementary commercial simulation tool with prepared simulation examples. Combination of the textbook material with numerical simulation experience presents a unique opportunity to gain a level of expertise that is hard to achieve otherwise. The book is bundled with simpli?ed trial version of commercial mixed- TM mode simulation software from Angstrom Design Automation. The DECIMM (Device Circuit Mixed-Mode) simulator tool and complementary to the book s- ulation examples can be downloaded from www.analogesd.com. The simulation examples prepared by the authors support the speci?c examples discussed across the book chapters. A key idea behind this project is to provide an opportunity to not only study the book material but also gain a much deeper understanding of the subject by direct experience through practical simulation examples.

High Speed Circuits For Lightwave Communications, Selected Topics In Electronics And Systems, Vol 1

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Publisher : World Scientific
ISBN 13 : 9814495891
Total Pages : 374 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis High Speed Circuits For Lightwave Communications, Selected Topics In Electronics And Systems, Vol 1 by : Keh-chung Wang

Download or read book High Speed Circuits For Lightwave Communications, Selected Topics In Electronics And Systems, Vol 1 written by Keh-chung Wang and published by World Scientific. This book was released on 1999-01-25 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: High speed circuits are crucial for increasing the bandwidth of transmission and switching of voice/video/data over optical fiber networks. The ever-increasing demand for bit rates higher than those available due to the explosion of Internet traffic has driven engineers to develop integrated circuits of performance approaching 100 Gb/s. Commercial lightwave products using high speed circuits of 10 Gb/s and beyond are readily available.High Speed Circuits for Lightwave Communications presents the latest information on circuit design, measured results, applications, and product development. It covers electronic and opto-electronic circuits for transmission, receiving, and cross-point switching. These circuits were implemented with various state-of-the-art IC technologies, including Si BJT, GaAs MESFET, HEMT, HBT, as well as InP HEMT and HBT. The book, written by more than 50 experts, will benefit graduate students, researchers, and engineers who are interested in or work in this exciting and challenging field of optical communications.

Optoelectronic Integrated Circuit Design and Device Modeling

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Publisher : John Wiley & Sons
ISBN 13 : 0470828382
Total Pages : 258 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Optoelectronic Integrated Circuit Design and Device Modeling by : Jianjun Gao

Download or read book Optoelectronic Integrated Circuit Design and Device Modeling written by Jianjun Gao and published by John Wiley & Sons. This book was released on 2011-09-19 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Optoelectronic Integrated Circuit Design and Device Modeling, Professor Jianjun Gao introduces the fundamentals and modeling techniques of optoelectronic devices used in high-speed optical transmission systems. Gao covers electronic circuit elements such as FET, HBT, MOSFET, as well as design techniques for advanced optical transmitter and receiver front-end circuits. The book includes an overview of optical communication systems and computer-aided optoelectronic IC design before going over the basic concept of laser diodes. This is followed by modeling and parameter extraction techniques of lasers and photodiodes. Gao covers high-speed electronic semiconductor devices, optical transmitter design, and optical receiver design in the final three chapters. Addresses a gap within the rapidly growing area of transmitter and receiver modeling in OEICs Explains diode physics before device modeling, helping readers understand their equivalent circuit models Provides comprehensive explanations for E/O and O/E conversions done with laser and photodiodes Covers an extensive range of devices for high-speed applications Accessible for students new to microwaves Presentation slides available for instructor use This book is primarily aimed at practicing engineers, researchers, and post-graduates in the areas of RF, microwaves, IC design, photonics and lasers, and solid state devices. The book is also a strong supplement for senior undergraduates taking courses in RF and microwaves. Lecture materials for instructors available at www.wiley.com/go/gao

High-Speed Heterostructure Devices

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Publisher : Cambridge University Press
ISBN 13 : 1139437461
Total Pages : 726 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis High-Speed Heterostructure Devices by : Patrick Roblin

Download or read book High-Speed Heterostructure Devices written by Patrick Roblin and published by Cambridge University Press. This book was released on 2002-03-07 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuelled by rapid growth in communications technology, silicon heterostructures and related high-speed semiconductors are spearheading the drive toward smaller, faster and lower power devices. High-Speed Heterostructure Devices is a textbook on modern high-speed semiconductor devices intended for both graduate students and practising engineers. This book is concerned with the underlying physics of heterostructures as well as some of the most recent techniques for modeling and simulating these devices. Emphasis is placed on heterostructure devices of the immediate future such as the MODFET, HBT and RTD. The principles of operation of other devices such as the Bloch Oscillator, RITD, Gunn diode, quantum cascade laser and SOI and LD MOSFETs are also introduced. Initially developed for a graduate course taught at Ohio State University, the book comes with a complete set of homework problems and a web link to MATLAB programs supporting the lecture material.

GaAs Technology and Its Impact on Circuits and Systems

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Author :
Publisher : Institution of Electrical Engineers
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis GaAs Technology and Its Impact on Circuits and Systems by : David Haigh

Download or read book GaAs Technology and Its Impact on Circuits and Systems written by David Haigh and published by Institution of Electrical Engineers. This book was released on 1989 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book captures the essence of developments of Gallium Arsenide technology from the research laboratory to the marketplace along with the dramatic increases in complexity from early single devices to ICs of MSI complexity for both analog and digital applications.

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 702 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analysis and Modeling of GaAs MESFET's for Linear Integrated Circuit Design

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Publisher :
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.:/5 (277 download)

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Book Synopsis Analysis and Modeling of GaAs MESFET's for Linear Integrated Circuit Design by : Mankoo Lee

Download or read book Analysis and Modeling of GaAs MESFET's for Linear Integrated Circuit Design written by Mankoo Lee and published by . This book was released on 1990 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete Gallium Arsenide Metal Semiconconductor Field Effect Transistor (GaAs MESFET) model including deep-level trap effects has been developed, which is far more accurate than previous equivalent circuit models, for high-speed applications in linear integrated circuit design. A new self-backgating GaAs MESFET model, which can simulate low frequency anomalies, is presented by including deep-level trap effects which cause transconductance reduction and the output conductance and the saturation drain current to increase with the applied signal frequency. This model has been incorporated into PSPICE and includes a time dependent I-V curve model, a capacitance model, a subthreshold current model, an RC network describing the effective substrate-induced capacitance and resistance, and a switching resistance providing device symmetry. An analytical approach is used to derive capacitances which depend on Vgs and Vds and is one which also includes the channel/substrate junction modulation by the self backgating effect. A subthreshold current model is analytically derived by the mobile charge density from the parabolic potential distribution in the cut-off region. Sparameter errors between previous models and measured data in conventional GaAs MESFET's have been reduced by including a transit time delay in the transconductances, gm and gds, by the second order Bessel polynomial approximation. As a convenient extraction method, a new circuit configuration is also proposed for extracting simulated S-parameters which accurately predict measured data. Also, a large-signal GaAs MESFET model for performing nonlinear microwave circuit simulations is described. As a linear IC design vehicle for demonstrating the utility of the model, a 3-stage GaAs operational amplifier has been designed and also has been fabricated with results of a 35 dB open-loop gain at high frequencies and a 4 GHz gain bandwidth product by a conventional half micron MESFET technology. Using this new model, the low frequency anomalies of the GaAs amplifier such as a gain roll-off, a phase notch, and an output current lag are more accurately predicted than with any other previous model. This new self-backgating GaAs MESFET model, which provides accurate voltage dependent capacitances, frequency dependent output conductance, and transit time delay dependent transconductances, can be used to simulate low frequency effects in GaAs linear integrated circuit design.