Basic Properties of III-V Devices – Understanding Mysterious Trapping Phenomena

Basic Properties of III-V Devices – Understanding Mysterious Trapping Phenomena
Title Basic Properties of III-V Devices – Understanding Mysterious Trapping Phenomena PDF eBook
Author Kompa, Günter
Publisher kassel university press GmbH
Pages 762
Release 2014
Genre Compound semiconductors
ISBN 3862195414

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Trapping effects in III-V devices pose a great challenge to any microwave device modeler. Understanding their physical origins is of prime importance to create physics-related reliable device models. The treatment of trapping phenomena is commonly beyond the classical higher-education level of communication engineers. This book provides any basic material needed to understand trapping effects occurring primarily in GaAs and GaN power HEMT devices. As the text material covers interdisciplinary topics such as crystal defects and localized charges, trap centers and trap dynamics, deep-level transient spectroscopy, and trap centers in passivation layers, the book will be of interest to graduate students of electrical engineering, communication engineering, and physics as well as materials, device, and circuit engineers in research and industry.

Parameter Extraction and Complex Nonlinear Transistor Models

Parameter Extraction and Complex Nonlinear Transistor Models
Title Parameter Extraction and Complex Nonlinear Transistor Models PDF eBook
Author Gunter Kompa
Publisher Artech House
Pages 610
Release 2019-12-31
Genre Technology & Engineering
ISBN 1630817457

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All model parameters are fundamentally coupled together, so that directly measured individual parameters, although widely used and accepted, may initially only serve as good estimates. This comprehensive resource presents all aspects concerning the modeling of semiconductor field-effect device parameters based on gallium-arsenide (GaAs) and gallium nitride (GaN) technology. Metal-semiconductor field-effect transistors (MESFETs), high electron mobility transistors (HEMTs) and heterojunction bipolar transistors (HBTs), their structures and functions, and existing transistor models are also classified. The Shockley model is presented in order to give insight into semiconductor field-effect transistor (FET) device physics and explain the relationship between geometric and material parameters and device performance. Extraction of trapping and thermal time constants is discussed. A special section is devoted to standard nonlinear FET models applied to large-signal measurements, including static-/pulsed-DC and single-/two-tone stimulation. High power measurement setups for signal waveform measurement, wideband source-/load-pull measurement (including envelope source-/load pull) are also included, along with high-power intermodulation distortion (IMD) measurement setup (including envelope load-pull). Written by a world-renowned expert in the field, this book is the first to cover of all aspects of semiconductor FET device modeling in a single volume.

'Advances in Microelectronics: Reviews', Vol_1

'Advances in Microelectronics: Reviews', Vol_1
Title 'Advances in Microelectronics: Reviews', Vol_1 PDF eBook
Author Sergey Yurish
Publisher Lulu.com
Pages 536
Release 2017-12-24
Genre Technology & Engineering
ISBN 8469786334

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The 1st volume of 'Advances in Microelectronics: Reviews' Book Series contains 19 chapters written by 72 authors from academia and industry from 16 countries. With unique combination of information in each volume, the 'Advances in Microelectronics: Reviews' Book Series will be of value for scientists and engineers in industry and at universities. In order to offer a fast and easy reading of the state of the art of each topic, every chapter in this book is independent and self-contained. All chapters have the same structure: first an introduction to specific topic under study; second particular field description including sensing applications. Each of chapter is ending by well selected list of references with books, journals, conference proceedings and web sites. This book ensures that readers will stay at the cutting edge of the field and get the right and effective start point and road map for the further researches and developments.

Advances in Data Mining. Applications and Theoretical Aspects

Advances in Data Mining. Applications and Theoretical Aspects
Title Advances in Data Mining. Applications and Theoretical Aspects PDF eBook
Author Petra Perner
Publisher Springer
Pages 456
Release 2016-06-27
Genre Computers
ISBN 3319415611

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This book constitutes the refereed proceedings of the 16th Industrial Conference on Advances in Data Mining, ICDM 2016, held in New York, NY, USA, in July 2016. The 33 revised full papers presented were carefully reviewed and selected from 100 submissions. The topics range from theoretical aspects of data mining to applications of data mining, such as in multimedia data, in marketing, in medicine, and in process control, industry, and society.

Partitioning Design Approach for the Reliable Design of Highly Efficient RF Power Amplifiers

Partitioning Design Approach for the Reliable Design of Highly Efficient RF Power Amplifiers
Title Partitioning Design Approach for the Reliable Design of Highly Efficient RF Power Amplifiers PDF eBook
Author Roshanak Lehna
Publisher kassel university press GmbH
Pages 190
Release 2017-11-13
Genre
ISBN 373760388X

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The modern wireless communication systems require modulated signals with wide modulation bandwidth. This, in turns, requires signals with very high dynamic range and peak-to-average power ratio (PAPR). This means that the amplifier in the base-station has to work at a power back-off as large as the dynamic range of the signal, so that the amplifier has a high linearity in this region. For the standard single-stage amplifiers, this large power back-off reduces the efficiency dramatically. In this work, a three-way Doherty power amplifier (DPA) aiming at high power efficiency within a dynamic range of 9.5 dB, is designed and fabricated using partitioning design approach. The partitioning design approach decomposes a complex design task into small-sized, well-controllable, and verifiable subcircuits. This advanced straight forward method has shown very promising results. Using this design approach, a three-way DPA has been designed to demonstrate the advantages of this reliable design technique as well. Based on the design of a single-stage power amplifier and proposing a novel output power combiner, a 6 W three-way DPA has been designed which allows the mandatory load modulation principle in three-way DPA structures to be realized with simpler elements, whereas the design of a standard Doherty combiner would have been very challenging and not practical due to the extremely small value of its characteristic line impedance. The proposed combiner is calculated for a three-way DPA with 2-mm AlGaN/GaN-HEMTs. The simulation result shows a very good load modulation for the amplifier, which confirms the theoretical expectation for a three-way DPA. The efficiency of the designed 6 W three-way DPA at large back-off shows very promising values compared to recently reported amplifiers. The measured IMD3 products confirm the good linearity of the amplifier as well. Accordingly, the proposed power combiner and the design strategy are recommended to be used as the preferred option for designing three-way DPA structures with very high output power.

Frontiers in Optics and Photonics

Frontiers in Optics and Photonics
Title Frontiers in Optics and Photonics PDF eBook
Author Federico Capasso
Publisher Walter de Gruyter GmbH & Co KG
Pages 783
Release 2021-06-08
Genre Technology & Engineering
ISBN 3110710684

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This book provides a cutting-edge research overview on the latest developments in the field of Optics and Photonics. All chapters are authored by the pioneers in their field and will cover the developments in Quantum Photonics, Optical properties of 2D Materials, Optical Sensors, Organic Opto-electronics, Nanophotonics, Metamaterials, Plasmonics, Quantum Cascade lasers, LEDs, Biophotonics and biomedical photonics and spectroscopy.

GaN and ZnO-based Materials and Devices

GaN and ZnO-based Materials and Devices
Title GaN and ZnO-based Materials and Devices PDF eBook
Author Stephen Pearton
Publisher Springer Science & Business Media
Pages 497
Release 2012-01-14
Genre Technology & Engineering
ISBN 3642235212

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The AlInGaN and ZnO materials systems have proven to be one of the scientifically and technologically important areas of development over the past 15 years, with applications in UV/visible optoelectronics and in high-power/high-frequency microwave devices. The pace of advances in these areas has been remarkable and the wide band gap community relies on books like the one we are proposing to provide a review and summary of recent progress.