Transient Floating-Body Effects for Memory Applications in Fully-Depleted SOI MOSFETs

Transient Floating-Body Effects for Memory Applications in Fully-Depleted SOI MOSFETs

Author: Maryline Bawedin

Publisher: Presses univ. de Louvain

Published: 2007

Total Pages: 176

ISBN-13: 9782874630880

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Memory devices based on floating-body effects (FBE) in Silicon-on-Insulator (SOI) technology are among the most promising candidates for sub-100nm and low power Dynamic Random Access Memory (DRAM). This new type of DRAMs, called Zero-Capacitor RAM (Z-RAM), uses only one transistor in partially-depleted (PD) SOI technology and takes advantage of FBE which have been considered as parasitic phenomena until now. The Z-RAM programming principles are based on the threshold voltage VTH variations induced by the excess or lack of majority carriers in the floating body. In this dissertation, a new floating-body effect, the Transient Floating Body Potential Effect (TFBPE), based on the body majority carriers non-equilibrium and on the dual dynamic gate coupling in standard fully-depleted (FD) SOI MOSFETs is presented for the first time. The TFBPE occurs in a specific gate bias range and can induce strong hysteresis of the gate and drain current characteristics although the FD SOI transistors are usually known to be immune against the FBE and their aftermaths. Adapted from the same physics principles as in the drain current hysteresis, that we called the Meta-Stable Dip (MSD) effect, a new concept of one-transistor capacitor-less memory was also proposed, the Meta-Stable DRAM (MSDRAM) which is dedicated for double-gate operations. All the experimental results and physics interpretations were supported by 2D numerical simulations. A 1D semi-analytical model of the body potential for non-equilibrium states was also proposed. For the first time, this original body-potential model takes into account the majority carriers density variations, i.e., the quasi-Fermi level non-equilibrium versus a transient gate voltage scan in a FD MOS device.


Fully-Depleted SOI CMOS Circuits and Technology for Ultralow-Power Applications

Fully-Depleted SOI CMOS Circuits and Technology for Ultralow-Power Applications

Author: Takayasu Sakurai

Publisher: Springer Science & Business Media

Published: 2007-02-01

Total Pages: 420

ISBN-13: 0387292187

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Fully-depleted SOI CMOS Circuits and Technology for Ultralow-Power Applications addresses the problem of reducing the supply voltage of conventional circuits for ultralow-power operation and explains power-efficient MTCMOS circuit design for FD-SOI devices at a supply voltage of 0.5 V. The topics include the minimum required knowledge of the fabrication of SOI substrates; FD-SOI devices and the latest developments in device and process technologies; and ultralow-voltage circuits, such as digital circuits, analog/RF circuits, and DC-DC converters. Each ultra-low-power technique related to devices and circuits is fully explained using figures to help understanding.


Fundamentals of Ultra-Thin-Body MOSFETs and FinFETs

Fundamentals of Ultra-Thin-Body MOSFETs and FinFETs

Author: Jerry G. Fossum

Publisher: Cambridge University Press

Published: 2013-08-29

Total Pages: 227

ISBN-13: 1107434491

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Understand the theory, design and applications of the two principal candidates for the next mainstream semiconductor-industry device with this concise and clear guide to FD/UTB transistors. • Describes FD/SOI MOSFETs and 3-D FinFETs in detail • Covers short-channel effects, quantum-mechanical effects, applications of UTB devices to floating-body DRAM and conventional SRAM • Provides design criteria for nanoscale FinFET and nanoscale thin- and thick-BOX planar FD/SOI MOSFET to help reduce technology development time • Projects potential nanoscale UTB CMOS performances • Contains end-of-chapter exercises. For professional engineers in the CMOS IC field who need to know about optimal non-classical device design and integration, this is a must-have resource.


Fully Depleted Silicon-On-Insulator

Fully Depleted Silicon-On-Insulator

Author: Sorin Cristoloveanu

Publisher: Elsevier

Published: 2021-08-04

Total Pages: 386

ISBN-13: 0128231653

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Fully Depleted Silicon-On-Insulator provides an in-depth presentation of the fundamental and pragmatic concepts of this increasingly important technology. There are two main technologies in the marketplace of advanced CMOS circuits: FinFETs and fully depleted silicon-on-insulators (FD-SOI). The latter is unchallenged in the field of low-power, high-frequency, and Internet-of-Things (IOT) circuits. The topic is very timely at research and development levels. Compared to existing books on SOI materials and devices, this book covers exhaustively the FD-SOI domain. Fully Depleted Silicon-On-Insulator is based on the expertise of one of the most eminent individuals in the community, Dr. Sorin Cristoloveanu, an IEEE Andrew Grove 2017 award recipient "For contributions to silicon-on-insulator technology and thin body devices." In the book, he shares key insights on the technological aspects, operation mechanisms, characterization techniques, and most promising emerging applications. Early praise for Fully Depleted Silicon-On-Insulator "It is an excellent written guide for everyone who would like to study SOI deeply, specially focusing on FD-SOI." --Dr. Katsu Izumi, Formerly at NTT Laboratories and then at Osaka Prefecture University, Japan "FDSOI technology is poised to catch an increasingly large portion of the semiconductor market. This book fits perfectly in this new paradigm [...] It covers many SOI topics which have never been described in a book before." --Professor Jean-Pierre Colinge, Formerly at TSMC and then at CEA-LETI, Grenoble, France "This book, written by one of the true experts and pioneers in the silicon-on-insulator field, is extremely timely because of the growing footprint of FD-SOI in modern silicon technology, especially in IoT applications. Written in a delightfully informal style yet comprehensive in its coverage, the book describes both the device physics underpinning FD-SOI technology and the cutting-edge, perhaps even futuristic devices enabled by it." --Professor Alexander Zaslavsky, Brown University, USA "A superbly written book on SOI technology by a master in the field." --Professor Yuan Taur, University of California, San Diego, USA "The author is a world-top researcher of SOI device/process technology. This book is his masterpiece and important for the FD-SOI archive. The reader will learn much from the book." --Professor Hiroshi Iwai, National Yang Ming Chiao Tung University, Taiwan From the author "It is during our global war against the terrifying coalition of corona and insidious computer viruses that this book has been put together. Continuous enlightenment from FD-SOI helped me cross this black and gray period. I shared a lot of myself in this book. The rule of the game was to keep the text light despite the heavy technical content. There are even tentative FD-SOI hieroglyphs on the front cover, composed of curves discussed in the book." Written by a top expert in the silicon-on-insulator community and IEEE Andrew Grove 2017 award recipient Comprehensively addresses the technology aspects, operation mechanisms and electrical characterization techniques for FD-SOI devices Discusses FD-SOI’s most promising device structures for memory, sensing and emerging applications


Fundamentals of Ultra-Thin-Body MOSFETs and FinFETs

Fundamentals of Ultra-Thin-Body MOSFETs and FinFETs

Author: Jerry G. Fossum

Publisher: Cambridge University Press

Published: 2013-08-29

Total Pages: 227

ISBN-13: 1107030412

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Understand the theory, design and applications of FD/SOI MOSFETs and 3-D FinFETs with this concise and clear guide to FD/UTB transistors. Topics covered include short-channel effects, quantum-mechanical effects, applications of UTB devices to floating-body DRAM and conventional SRAM, and nanoscale UTB CMOS performances.


Electrical Characterization of Silicon-on-Insulator Materials and Devices

Electrical Characterization of Silicon-on-Insulator Materials and Devices

Author: Sorin Cristoloveanu

Publisher: Springer Science & Business Media

Published: 2013-11-27

Total Pages: 389

ISBN-13: 1461522455

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Silicon on Insulator is more than a technology, more than a job, and more than a venture in microelectronics; it is something different and refreshing in device physics. This book recalls the activity and enthu siasm of our SOl groups. Many contributing students have since then disappeared from the SOl horizon. Some of them believed that SOl was the great love of their scientific lives; others just considered SOl as a fantastic LEGO game for adults. We thank them all for kindly letting us imagine that we were guiding them. This book was very necessary to many people. SOl engineers will certainly be happy: indeed, if the performance of their SOl components is not always outstanding, they can now safely incriminate the relations given in the book rather than their process. Martine, Gunter, and Y. S. Chang can contemplate at last the amount of work they did with the figures. Our SOl accomplices already know how much we borrowed from their expertise and would find it indecent to have their detailed contri butions listed. Jean-Pierre and Dimitris incited the book, while sharing their experience in the reliability of floating bodies. Our families and friends now realize the SOl capability of dielectrically isolating us for about two years in a BOX. Our kids encouraged us to start writing. Our wives definitely gave us the courage to stop writing. They had a hard time fighting the symptoms of a rapidly developing SOl allergy.


Advances in VLSI, Communication, and Signal Processing

Advances in VLSI, Communication, and Signal Processing

Author: Amit Dhawan

Publisher: Springer Nature

Published: 2022-10-04

Total Pages: 749

ISBN-13: 981192631X

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This book comprises select peer-reviewed proceedings of the International Conference on VLSI, Communication and Signal processing (VCAS 2021). The contents focus on the latest research in different domains of electronics and communication engineering, in particular microelectronics and VLSI design, communication systems and networks, and signal and image processing. The book discusses the emerging applications of novel tools and techniques in image, video, and multimedia signal processing. This book will be useful to students, researchers, and professionals working in electronics and communication.