Low Voltage Power MOSFETs

Low Voltage Power MOSFETs PDF

Author: Jacek Korec

Publisher: Springer Science & Business Media

Published: 2011-03-30

Total Pages: 68

ISBN-13: 1441993207

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Low Voltage Power MOSFETs focuses on the design of low voltage power MOSFETs and the relation between the device structure and the performance of a power MOSFET used as a switch in power management applications. This SpringerBriefs close the gap between detailed engineering reference books and the numerous technical papers on the subject of power MOSFETs. The material presented covers low voltage applications extending from battery operated portable electronics, through point of load converters, internet infrastructure, automotive applications, to personal computers and server computers. The issues treated in this volume are explained qualitatively using schematic illustrations, making the discussion easy to follow for all prospective readers.

Parameter Extraction and Device Physics Projections on Lateral Low Voltage Power Mosfet Configurations

Parameter Extraction and Device Physics Projections on Lateral Low Voltage Power Mosfet Configurations PDF

Author:

Publisher:

Published: 2001

Total Pages:

ISBN-13:

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The growing demand for battery-operated portable systems and power supply restrictions due to device scaling and reliability are major driving forces for development of low voltage/high current MOSFETs for VLSI technology. Reducing the power supply is a very effective way to reduce power consumption, hence increasing the device operating lifetime and relaxing the reliability constraints. The biggest challenge is to maintain high performance characteristics of the device, i.e. to prevent degradation of the device speed, by scaling down the device, thus lowering the threshold voltage and increasing the current-drive of the MOSFET. The contents of this document describe the major portion of experimental efforts and the subsequent results, of a project initiated by the Procter and Gamble Company with the intent of developing ultra low voltage power MOSFETs in collaboration with the University of Cincinnati. The specific objectives of the project are given below: 1. Full device characterization of existing state of the art power MOSFETs, verification and analysis and detailed understanding of the provided models and fitness comparison. 2. Parameter Extraction, model generation and comparison with obtained I-V characteristics. 3. Testing and full characterization of the lateral power MOSFET. 4. Investigation of the semiconductor physics for short channel, high current, low voltageMOSFETs and impact of sub 1V design on power MOSFET performance. 5. Parameter extraction and modeling of the developed device.

Power MOSFETs

Power MOSFETs PDF

Author: Duncan A. Grant

Publisher: Wiley-Interscience

Published: 1989-04-25

Total Pages: 540

ISBN-13:

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Details the theory of power MOSFETs and their applications. Explains the basis of MOSFET characteristics, and the features that determine MOSFET behavior. Examines the interaction of the MOSFET device with other elements in the circuit, and how device characteristics influence circuit design. Describes several circuits at length to highlight the practical details of power MOSFET use.

High Performance Low Voltage Power MOSFET for High-frequency Synchronous Buck Converters

High Performance Low Voltage Power MOSFET for High-frequency Synchronous Buck Converters PDF

Author: Boyi Yang

Publisher:

Published: 2012

Total Pages: 125

ISBN-13:

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In particular, a new NexFET structure with its source electrode on the bottom side of the die (source-down) is designed to enable the innovative stacked-die PSiP technology with significantly reduced parasitic inductance and package footprint. It is also observed that in synchronous buck converter very fast switching of power MOSFETs sometimes leads to high voltage oscillations at the phase node of the buck converter, which may introduce additional power loss and cause EMI related problems and undesirable electrical stress to the power MOSFET. At the same time, the synchronous MOSFET plays an important role in determining the performance of the synchronous buck converter. The reverse recovery of its body diode and the Cdv/dt induced false trigger-on are two major mechanisms that impact the performance of the SyncFET. This dissertation introduces a new approach to effectively overcome the aforementioned challenges associated with the state-of-art technology. The threshold voltage of the low-side NexFET is intentionally reduced to minimize the conduction and body diode related power losses. Meanwhile, a monolithically integrated gate voltage pull-down circuitry is proposed to overcome the possible Cdv/dt induced turn-on issue inadvertently induced by the low V[subscript TH] SynFET.

MOS Devices for Low-Voltage and Low-Energy Applications

MOS Devices for Low-Voltage and Low-Energy Applications PDF

Author: Yasuhisa Omura

Publisher: John Wiley & Sons

Published: 2017-02-28

Total Pages: 483

ISBN-13: 1119107350

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Helps readers understand the physics behind MOS devices for low-voltage and low-energy applications Based on timely published and unpublished work written by expert authors Discusses various promising MOS devices applicable to low-energy environmental and biomedical uses Describes the physical effects (quantum, tunneling) of MOS devices Demonstrates the performance of devices, helping readers to choose right devices applicable to an industrial or consumer environment Addresses some Ge-based devices and other compound-material-based devices for high-frequency applications and future development of high performance devices. "Seemingly innocuous everyday devices such as smartphones, tablets and services such as on-line gaming or internet keyword searches consume vast amounts of energy. Even when in standby mode, all these devices consume energy. The upcoming 'Internet of Things' (IoT) is expected to deploy 60 billion electronic devices spread out in our homes, cars and cities. Britain is already consuming up to 16 per cent of all its power through internet use and this rate is doubling every four years. According to The UK's Daily Mail May (2015), if usage rates continue, all of Britain's power supply could be consumed by internet use in just 20 years. In 2013, U.S. data centers consumed an estimated 91 billion kilowatt-hours of electricity, corresponding to the power generated by seventeen 1000-megawatt nuclear power plants. Data center electricity consumption is projected to increase to roughly 140 billion kilowatt-hours annually by 2020, the equivalent annual output of 50 nuclear power plants." —Natural Resources Defense Council, USA, Feb. 2015 All these examples stress the urgent need for developing electronic devices that consume as little energy as possible. The book “MOS Devices for Low-Voltage and Low-Energy Applications” explores the different transistor options that can be utilized to achieve that goal. It describes in detail the physics and performance of transistors that can be operated at low voltage and consume little power, such as subthreshold operation in bulk transistors, fully depleted SOI devices, tunnel FETs, multigate and gate-all-around MOSFETs. Examples of low-energy circuits making use of these devices are given as well. "The book MOS Devices for Low-Voltage and Low-Energy Applications is a good reference for graduate students, researchers, semiconductor and electrical engineers who will design the electronic systems of tomorrow." —Dr. Jean-Pierre Colinge, Taiwan Semiconductor Manufacturing Company (TSMC) "The authors present a creative way to show how different MOS devices can be used for low-voltage and low-power applications. They start with Bulk MOSFET, following with SOI MOSFET, FinFET, gate-all-around MOSFET, Tunnel-FET and others. It is presented the physics behind the devices, models, simulations, experimental results and applications. This book is interesting for researchers, graduate and undergraduate students. The low-energy field is an important topic for integrated circuits in the future and none can stay out of this." —Prof. Joao A. Martino, University of Sao Paulo, Brazil

Advanced Power MOSFET Concepts

Advanced Power MOSFET Concepts PDF

Author: B. Jayant Baliga

Publisher: Springer Science & Business Media

Published: 2010-06-26

Total Pages: 573

ISBN-13: 1441959173

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During the last decade many new concepts have been proposed for improving the performance of power MOSFETs. The results of this research are dispersed in the technical literature among journal articles and abstracts of conferences. Consequently, the information is not readily available to researchers and practicing engineers in the power device community. There is no cohesive treatment of the ideas to provide an assessment of the relative merits of the ideas. "Advanced Power MOSFET Concepts" provides an in-depth treatment of the physics of operation of advanced power MOSFETs. Analytical models for explaining the operation of all the advanced power MOSFETs will be developed. The results of numerical simulations will be provided to give additional insight into the device physics and validate the analytical models. The results of two-dimensional simulations will be provided to corroborate the analytical models and give greater insight into the device operation.