Metal Oxides for Non volatile Memory

Metal Oxides for Non volatile Memory
Author: Panagiotis Dimitrakis,Ilia Valov,Stefan Tappertzhofen
Publsiher: Elsevier
Total Pages: 536
Release: 2022-03-10
ISBN: 0128146303
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Metal Oxides for Non volatile Memory Book Excerpt:

Metal Oxides for Non-volatile Memory: Materials, Technology and Applications covers the technology and applications of metal oxides (MOx) in non-volatile memory (NVM) technology. The book addresses all types of NVMs, including floating-gate memories, 3-D memories, charge-trapping memories, quantum-dot memories, resistance switching memories and memristors, Mott memories and transparent memories. Applications of MOx in DRAM technology where they play a crucial role to the DRAM evolution are also addressed. The book offers a broad scope, encompassing discussions of materials properties, deposition methods, design and fabrication, and circuit and system level applications of metal oxides to non-volatile memory. Finally, the book addresses one of the most promising materials that may lead to a solution to the challenges in chip size and capacity for memory technologies, particular for mobile applications and embedded systems. Systematically covers metal oxides materials and their properties with memory technology applications, including floating-gate memory, 3-D memory, memristors, and much more Provides an overview on the most relevant deposition methods, including sputtering, CVD, ALD and MBE Discusses the design and fabrication of metal oxides for wide breadth of non-volatile memory applications from 3-D flash technology, transparent memory and DRAM technology

Emerging Non Volatile Memories

Emerging Non Volatile Memories
Author: Seungbum Hong,Orlando Auciello,Dirk Wouters
Publsiher: Springer
Total Pages: 273
Release: 2014-11-18
ISBN: 1489975373
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Emerging Non Volatile Memories Book Excerpt:

This book is an introduction to the fundamentals of emerging non-volatile memories and provides an overview of future trends in the field. Readers will find coverage of seven important memory technologies, including Ferroelectric Random Access Memory (FeRAM), Ferromagnetic RAM (FMRAM), Multiferroic RAM (MFRAM), Phase-Change Memories (PCM), Oxide-based Resistive RAM (RRAM), Probe Storage, and Polymer Memories. Chapters are structured to reflect diffusions and clashes between different topics. Emerging Non-Volatile Memories is an ideal book for graduate students, faculty, and professionals working in the area of non-volatile memory. This book also: Covers key memory technologies, including Ferroelectric Random Access Memory (FeRAM), Ferromagnetic RAM (FMRAM), and Multiferroic RAM (MFRAM), among others. Provides an overview of non-volatile memory fundamentals. Broadens readers’ understanding of future trends in non-volatile memories.

Emerging Non volatile Memory Technologies

Emerging Non volatile Memory Technologies
Author: Wen Siang Lew,Gerard Joseph Lim,Putu Andhita Dananjaya
Publsiher: Springer Nature
Total Pages: 438
Release: 2021-01-09
ISBN: 9811569126
Category: Science
Language: EN, FR, DE, ES & NL

Emerging Non volatile Memory Technologies Book Excerpt:

This book offers a balanced and comprehensive guide to the core principles, fundamental properties, experimental approaches, and state-of-the-art applications of two major groups of emerging non-volatile memory technologies, i.e. spintronics-based devices as well as resistive switching devices, also known as Resistive Random Access Memory (RRAM). The first section presents different types of spintronic-based devices, i.e. magnetic tunnel junction (MTJ), domain wall, and skyrmion memory devices. This section describes how their developments have led to various promising applications, such as microwave oscillators, detectors, magnetic logic, and neuromorphic engineered systems. In the second half of the book, the underlying device physics supported by different experimental observations and modelling of RRAM devices are presented with memory array level implementation. An insight into RRAM desired properties as synaptic element in neuromorphic computing platforms from material and algorithms viewpoint is also discussed with specific example in automatic sound classification framework.

Functional Metal Oxide Nanostructures

Functional Metal Oxide Nanostructures
Author: Junqiao Wu,Jinbo Cao,Wei-Qiang Han,Anderson Janotti,Ho-Cheol Kim
Publsiher: Springer Science & Business Media
Total Pages: 368
Release: 2011-09-22
ISBN: 9781441999313
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Functional Metal Oxide Nanostructures Book Excerpt:

Metal oxides and particularly their nanostructures have emerged as animportant class of materials with a rich spectrum of properties and greatpotential for device applications. In this book, contributions from leadingexperts emphasize basic physical properties, synthesis and processing, and thelatest applications in such areas as energy, catalysis and data storage. Functional Metal Oxide Nanostructuresis an essential reference for any materials scientist or engineer with aninterest in metal oxides, and particularly in recent progress in defectphysics, strain effects, solution-based synthesis, ionic conduction, and theirapplications.

Advances in Non volatile Memory and Storage Technology

Advances in Non volatile Memory and Storage Technology
Author: Yoshio Nishi,Blanka Magyari-Kope
Publsiher: Woodhead Publishing
Total Pages: 662
Release: 2019-06-15
ISBN: 0081025858
Category: Science
Language: EN, FR, DE, ES & NL

Advances in Non volatile Memory and Storage Technology Book Excerpt:

Advances in Nonvolatile Memory and Storage Technology, Second Edition, addresses recent developments in the non-volatile memory spectrum, from fundamental understanding, to technological aspects. The book provides up-to-date information on the current memory technologies as related by leading experts in both academia and industry. To reflect the rapidly changing field, many new chapters have been included to feature the latest in RRAM technology, STT-RAM, memristors and more. The new edition describes the emerging technologies including oxide-based ferroelectric memories, MRAM technologies, and 3D memory. Finally, to further widen the discussion on the applications space, neuromorphic computing aspects have been included. This book is a key resource for postgraduate students and academic researchers in physics, materials science and electrical engineering. In addition, it will be a valuable tool for research and development managers concerned with electronics, semiconductors, nanotechnology, solid-state memories, magnetic materials, organic materials and portable electronic devices. Discusses emerging devices and research trends, such as neuromorphic computing and oxide-based ferroelectric memories Provides an overview on developing nonvolatile memory and storage technologies and explores their strengths and weaknesses Examines improvements to flash technology, charge trapping and resistive random access memory

Photo Electroactive Non Volatile Memories for Data Storage and Neuromorphic Computing

Photo Electroactive Non Volatile Memories for Data Storage and Neuromorphic Computing
Author: Suting Han,Ye Zhou
Publsiher: Woodhead Publishing
Total Pages: 352
Release: 2020-05-26
ISBN: 0128226064
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Photo Electroactive Non Volatile Memories for Data Storage and Neuromorphic Computing Book Excerpt:

Photo-Electroactive Non-Volatile Memories for Data Storage and Neuromorphic Computing summarizes advances in the development of photo-electroactive memories and neuromorphic computing systems, suggests possible solutions to the challenges of device design, and evaluates the prospects for commercial applications. Sections covers developments in electro-photoactive memory, and photonic neuromorphic and in-memory computing, including discussions on design concepts, operation principles and basic storage mechanism of optoelectronic memory devices, potential materials from organic molecules, semiconductor quantum dots to two-dimensional materials with desirable electrical and optical properties, device challenges, and possible strategies. This comprehensive, accessible and up-to-date book will be of particular interest to graduate students and researchers in solid-state electronics. It is an invaluable systematic introduction to the memory characteristics, operation principles and storage mechanisms of the latest reported electro-photoactive memory devices. Reviews the most promising materials to enable emerging computing memory and data storage devices, including one- and two-dimensional materials, metal oxides, semiconductors, organic materials, and more Discusses fundamental mechanisms and design strategies for two- and three-terminal device structures Addresses device challenges and strategies to enable translation of optical and optoelectronic technologies

Charge Trapping Non Volatile Memories

Charge Trapping Non Volatile Memories
Author: Panagiotis Dimitrakis
Publsiher: Springer
Total Pages: 211
Release: 2017-02-14
ISBN: 3319487051
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Charge Trapping Non Volatile Memories Book Excerpt:

This book describes the technology of charge-trapping non-volatile memories and their uses. The authors explain the device physics of each device architecture and provide a concrete description of the materials involved and the fundamental properties of the technology. Modern material properties, used as charge-trapping layers, for new applications are introduced. Provides a comprehensive overview of the technology for charge-trapping non-volatile memories; Details new architectures and current modeling concepts for non-volatile memory devices; Focuses on conduction through multi-layer gate dielectrics stacks.

Non volatile Memories

Non volatile Memories
Author: Pierre-Camille Lacaze,Jean-Claude Lacroix
Publsiher: John Wiley & Sons
Total Pages: 286
Release: 2014-12-01
ISBN: 1118790286
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Non volatile Memories Book Excerpt:

Written for scientists, researchers, and engineers, Non-volatile Memories describes the recent research and implementations in relation to the design of a new generation of non-volatile electronic memories. The objective is to replace existing memories (DRAM, SRAM, EEPROM, Flash, etc.) with a universal memory model likely to reach better performances than the current types of memory: extremely high commutation speeds, high implantation densities and retention time of information of about ten years.

Graphene Oxide Metal Oxide and other Graphene Oxide Based Composites in Photocatalysis and Electrocatalysis

Graphene Oxide Metal Oxide and other Graphene Oxide Based Composites in Photocatalysis and Electrocatalysis
Author: Jiaguo Yu,Liuyang Zhang,Panyong Kuang
Publsiher: Elsevier
Total Pages: 306
Release: 2022-07-01
ISBN: 0323852882
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Graphene Oxide Metal Oxide and other Graphene Oxide Based Composites in Photocatalysis and Electrocatalysis Book Excerpt:

Graphene Oxide-Metal Oxide and other Graphene Oxide-Based Composites in Photocatalysis and Electrocatalysis reflects on recent progress and challenges in graphene-metal oxide composites. The book reviews synthetic strategies, characterization methods and applications in photocatalysis and electrocatalysis. Graphene-metal oxides, graphene-novel metals and other composites intended for sustainable energy production, energy storage, and environmental development such as H2 production, CO2 reduction, pollutant removal, supercapacitors and lithium ion batteries are covered. Overall, this book presents a comprehensive, systematic, and up-to-date summary on graphene oxide-based materials. Graphene oxide and related composite materials bring new perspectives and prospects to both photocatalysts and electrocatalysts. The collective and synergistic effect between graphene oxide and metal oxide are manifold. The significance of the relationship among these groups of materials, their structures and performance is emphasized. Introduces the fundamentals of graphene oxides, their derivatives, common processes, principles and requirements for photocatalysis and electrocatalysis Reviews graphene-oxides for photocatalysis applications in H2 production, CO2 reduction, environment remediation, and more Covers graphene-oxides for electrocatalysis applications in energy, including supercapacitors and lithium-ion batteries

Gate Stack Engineering for Emerging Polarization based Non volatile Memories

Gate Stack Engineering for Emerging Polarization based Non volatile Memories
Author: Milan Pesic
Publsiher: BoD – Books on Demand
Total Pages: 152
Release: 2017-07-14
ISBN: 3744867889
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Gate Stack Engineering for Emerging Polarization based Non volatile Memories Book Excerpt:

The hafnium based ferroelectric memories offer a low power consumption, ultra-fast operation, non-volatile retention as well as the small relative cell size as the main requirements for future memories. These remarkable properties of ferroelectric memories make them promising candidates for non-volatile memories that would bridge the speed gap between fast logic and slow off-chip, long term storage. Even though the retention of hafnia based ferroelectric memories can be extrapolated to a ten-year specification target, they suffer from a rather limited endurance. Therefore, this work targets relating the field cycling behavior of hafnia based ferroelectric memories to the physical mechanisms taking place within the film stack. Establishing a correlation between the performance of the device and underlying physical mechanisms is the first step toward understanding the device and engineering guidelines for novel, superior devices. In the frame of this work, an in-depth ferroelectric and dielectric characterization, analysis and TEM study was combined with comprehensive modeling approach. Drift and diffusion based vacancy redistribution was found as the main cause for the phase transformation and consequent increase of the remnant polarization, while domain pinning and defect generation is identified to be responsible for the device fatigue. Finally, based on Landau theory, a simple way to utilize the high endurance strength of anti-ferroelectric (AFE) materials and achieve non-volatility in state-of-the-art DRAM stacks was proposed and the fabrication of the world's first non-volatile AFE-RAM is reported. These findings represent an important milestone and pave the way toward a commercialization of (anti)ferroelectric non-volatile memories based on simple binary-oxides.

Metal Oxides for Biomedical and Biosensor Applications

Metal Oxides for Biomedical and Biosensor Applications
Author: Kunal Mondal,Ghenadii Korotcenkov
Publsiher: Elsevier
Total Pages: 580
Release: 2021-12-04
ISBN: 0128230584
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Metal Oxides for Biomedical and Biosensor Applications Book Excerpt:

Metal Oxides for Biomedical and Biosensor Applications gives an in-depth overview of the emerging research in the biomedical and biosensing applications of metal oxides, including optimization of their surface and bulk properties. Sections cover biomedical applications of metal oxides for use in cell cultures, antibacterial and antimicrobial treatments, dental applications, drug delivery, cancer therapy, immunotherapy, photothermal therapy, tissue engineering, and metal oxide-based biosensor development. As advanced and biofunctionalized nano/micro structured metal oxides are finding applications in microfluidics, optical sensors, electrochemical sensors, DNA-based biosensing, imaging, diagnosis and analysis, this book provides a comprehensive update on the topic. Additional sections cover research challenges, technology limitations, and future trends in metal oxides and their composites regarding their usage in biomedical applications. Includes an overview of the important applications of metal oxides for biomedical and biosensing technologies Addresses the relationship between material properties, such as structure, morphology, composition and performance Reviews the design and fabrication strategies of metal oxides for use in medical and biosensing applications

Metal Oxide Carbon Hybrid Materials

Metal Oxide Carbon Hybrid Materials
Author: Muhammad Akram Chaudhry,Rafaqat Hussain,Faheem K. Butt
Publsiher: Elsevier
Total Pages: 588
Release: 2022-03-20
ISBN: 0128227087
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Metal Oxide Carbon Hybrid Materials Book Excerpt:

Metal Oxide–Carbon Hybrid Materials: Synthesis, Properties and Applications reviews the advances in the fabrication and application of metal oxide–carbon-based nanocomposite materials. Their unique properties make them ideal materials for gas-sensing, photonics, catalysis, opto-electronic, and energy-storage applications. In the first section, the historical background to the hybrid materials based on metal oxide–carbon and the hybridized metal oxide composites is provided. It also highlights several popular methods for the preparation of metal oxide–carbon composites through solid-state or solution-phase reactions, and extensively discusses the materials’ properties. Fossil fuels and renewable energy sources cannot meet the ever-increasing energy demands of an industrialized and technology-driven global society. Therefore, the role of metal oxide–carbon composites in energy generation, hydrogen production, and storage devices, such as rechargeable batteries and supercapacitors, is of extreme importance. These problems are discussed in in the second section of the book. Rapid industrialization has resulted in serious environmental issues which in turn have caused serious health problems that require the immediate attention of researchers. In the third section, the use of metal oxide–carbon composites in water purification, photodegradation of industrial contaminants, and biomedical applications that can help to clean the environment and provide better healthcare solutions is described. The final section is devoted to the consideration of problems associated with the development of sensors for various applications. Numerous studies performed in this area have shown that the use of composites can significantly improve the operating parameters of such devices. Metal Oxide–Carbon Hybrid Materials: Synthesis, Properties and Applications presents a comprehensive review of the science related to metal oxide–carbon composites and how researchers are utilizing these materials to provide solutions to a large array of problems. Reviews the fundamental properties and fabrication methods of metal-oxide–carbon composites Discusses applications in energy, including energy generation, hydrogen production and storage, rechargeable batteries, and supercapacitors Includes current and emerging applications in environmental remediation and sensing

Metal Oxides and Related Solids for Electrocatalytic Water Splitting

Metal Oxides and Related Solids for Electrocatalytic Water Splitting
Author: Junlei Qi
Publsiher: Elsevier
Total Pages: 404
Release: 2022-05-16
ISBN: 0323898068
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Metal Oxides and Related Solids for Electrocatalytic Water Splitting Book Excerpt:

Metal Oxides and Related Solids for Electrocatalytic Water Splitting reviews the fundamentals and strategies needed to design and fabricate metal oxide-based electrocatalysts. After an introduction to the key properties of transition metal oxides, materials engineering methods to optimize the performance of metal-oxide based electrocatalysts are discussed. Strategies reviewed include defect engineering, interface engineering and doping engineering. Other sections cover important categories of metal-oxide (and related solids) based catalysts, including layered hydroxides, metal chalcogenides, metal phosphides, metal nitrides, metal borides, and more. Each chapter introduces important properties and material design strategies, including composite and morphology design. There is also an emphasis on cost-effective materials design and fabrication for optimized performance for electrocatalytic water splitting applications. Lastly, the book touches on recently developed in-situ characterization methods applied to observe and control the material synthesis process. Introduces metal oxide-based materials for electrocatalytic water splitting applications, including their key properties, synthesis, design and fabrication strategies Reviews the most relevant materials design strategies, including defect engineering, interface engineering, and doping engineering Discusses the pros and cons of metal oxide-based materials for water splitting applications to aid in materials selection

Metal Oxide Based Nanofibers and Their Applications

Metal Oxide Based Nanofibers and Their Applications
Author: Vincenzo Esposito,Debora Marani
Publsiher: Elsevier
Total Pages: 460
Release: 2021-10-25
ISBN: 0128209070
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Metal Oxide Based Nanofibers and Their Applications Book Excerpt:

Metal Oxide-based Nanofibers and their Applications provides an in-depth overview on developments surrounding the synthesis, characterization properties, and applications achieved by scientific leaders in the area. Sections deal with the theoretical and experimental aspects of the synthesis and methodologies to control microstructure, composition and shape of the nanofibrous metal oxides, review the applications of metal oxide nanofibers in diverse technologies, with special focus on the relation between the structural, morphological and compositional features of the nanofibers, cover applications of metal oxide nanofibers in the fields of sensing (biosensing, gas sensing), and consider biomedical and cleaning technologies. Lastly, a final section covers their application in energy generation and storage technologies (e. g. piezoelectric, solar cells, solid oxide fuel cells, lithium-ion batteries, supercapacitors, and hydrogen storage are reviewed. Reviews electrospinning methods for the synthesis and design of nanocomposites and hybrid metal oxide nanofibers Discusses applications of metal oxide nanofibers in sensing, biomedical fields, cleaning technologies, and energy Emphasizes the structural, morphological and compositional properties of nanofibers and their effect on device performance

Renewable Polymers and Polymer Metal Oxide Composites

Renewable Polymers and Polymer Metal Oxide Composites
Author: Sajjad Haider,Adnan Haider
Publsiher: Elsevier
Total Pages: 514
Release: 2022-03-31
ISBN: 0323852963
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Renewable Polymers and Polymer Metal Oxide Composites Book Excerpt:

Renewable Polymers and Polymer-Metal Oxide Composites: Synthesis, Properties, and Applications serves as a reference on the key concepts of the advances of polymer-oxide composites. The book reviews knowledge on polymer-composite theory, properties, structure, synthesis, and their characterization and applications. There is an emphasis on coupling metal oxides with polymers from renewable sources. Also, the latest advances in the relationship between the microstructure of the composites and the resulting improvement of the material’s properties and performance are covered. The applications addressed include desalination, tissue engineering, energy storage, hybrid energy systems, food, and agriculture. This book is suitable for early-career researchers in academia and R&D in industry who are working in the disciplines of materials science, engineering, chemistry and physics. Provides basic principles, theory and synthetic methods of composite materials, polymer composites and metal oxides Reviews the latest advances in polymer-oxide-based applications in medicine, water treatment, energy and sensing Discusses materials from renewable resources, including lifecycle assessment, economic aspects and potential application in tissue engineering, photovoltaics and food packaging

Metal Oxide Based Nanostructured Electrocatalysts for Fuel Cells Electrolyzers and Metal Air Batteries

Metal Oxide Based Nanostructured Electrocatalysts for Fuel Cells  Electrolyzers  and Metal Air Batteries
Author: Teko W. Napporn,Yaovi Holade
Publsiher: Elsevier
Total Pages: 292
Release: 2021-01-30
ISBN: 0128184973
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Metal Oxide Based Nanostructured Electrocatalysts for Fuel Cells Electrolyzers and Metal Air Batteries Book Excerpt:

Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-Air Batteries is a comprehensive book summarizing the recent overview of these new materials developed to date. The book is motivated by research that focuses on the reduction of noble metal content in catalysts to reduce the cost associated to the entire system. Metal oxides gained significant interest in heterogeneous catalysis for basic research and industrial deployment. Metal Oxide-Based Nanostructured Electrocatalysts for Fuel Cells, Electrolyzers, and Metal-Air Batteries puts these opportunities and challenges into a broad context, discusses the recent researches and technological advances, and finally provides several pathways and guidelines that could inspire the development of ground-breaking electrochemical devices for energy production or storage. Its primary focus is how materials development is an important approach to produce electricity for key applications such as automotive and industrial. The book is appropriate for those working in academia and R&D in the disciplines of materials science, chemistry, electrochemistry, and engineering. Includes key aspects of materials design to improve the performance of electrode materials for energy conversion and storage device applications Reviews emerging metal oxide materials for hydrogen production, hydrogen oxidation, oxygen reduction and oxygen evolution Discusses metal oxide electrocatalysts for water-splitting, metal-air batteries, electrolyzer, and fuel cell applications

Machine Learning and Non volatile Memories

Machine Learning and Non volatile Memories
Author: Rino Micheloni,Cristian Zambelli
Publsiher: Springer Nature
Total Pages: 161
Release: 2022-06-26
ISBN: 303103841X
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Machine Learning and Non volatile Memories Book Excerpt:

This book presents the basics of both NAND flash storage and machine learning, detailing the storage problems the latter can help to solve. At a first sight, machine learning and non-volatile memories seem very far away from each other. Machine learning implies mathematics, algorithms and a lot of computation; non-volatile memories are solid-state devices used to store information, having the amazing capability of retaining the information even without power supply. This book will help the reader understand how these two worlds can work together, bringing a lot of value to each other. In particular, the book covers two main fields of application: analog neural networks (NNs) and solid-state drives (SSDs). After reviewing the basics of machine learning in Chapter 1, Chapter 2 shows how neural networks can mimic the human brain; to accomplish this result, neural networks have to perform a specific computation called vector-by-matrix (VbM) multiplication, which is particularly power hungry. In the digital domain, VbM is implemented by means of logic gates which dictate both the area occupation and the power consumption; the combination of the two poses serious challenges to the hardware scalability, thus limiting the size of the neural network itself, especially in terms of the number of processable inputs and outputs. Non-volatile memories (phase change memories in Chapter 3, resistive memories in Chapter 4, and 3D flash memories in Chapter 5 and Chapter 6) enable the analog implementation of the VbM (also called “neuromorphic architecture”), which can easily beat the equivalent digital implementation in terms of both speed and energy consumption. SSDs and flash memories are strictly coupled together; as 3D flash scales, there is a significant amount of work that has to be done in order to optimize the overall performances of SSDs. Machine learning has emerged as a viable solution in many stages of this process. After introducing the main flash reliability issues, Chapter 7 shows both supervised and un-supervised machine learning techniques that can be applied to NAND. In addition, Chapter 7 deals with algorithms and techniques for a pro-active reliability management of SSDs. Last but not least, the last section of Chapter 7 discusses the next challenge for machine learning in the context of the so-called computational storage. No doubt that machine learning and non-volatile memories can help each other, but we are just at the beginning of the journey; this book helps researchers understand the basics of each field by providing real application examples, hopefully, providing a good starting point for the next level of development.

Next Generation Spin Torque Memories

Next Generation Spin Torque Memories
Author: Brajesh Kumar Kaushik,Shivam Verma,Anant Aravind Kulkarni,Sanjay Prajapati
Publsiher: Springer
Total Pages: 92
Release: 2017-04-07
ISBN: 981102720X
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Next Generation Spin Torque Memories Book Excerpt:

This book offers detailed insights into spin transfer torque (STT) based devices, circuits and memories. Starting with the basic concepts and device physics, it then addresses advanced STT applications and discusses the outlook for this cutting-edge technology. It also describes the architectures, performance parameters, fabrication, and the prospects of STT based devices. Further, moving from the device to the system perspective it presents a non-volatile computing architecture composed of STT based magneto-resistive and all-spin logic devices and demonstrates that efficient STT based magneto-resistive and all-spin logic devices can turn the dream of instant on/off non-volatile computing into reality.

Reconfigurable Technology for Future Optical Access Networks

Reconfigurable Technology for Future Optical Access Networks
Author: Anonim
Publsiher: Stanford University
Total Pages: 135
Release: 2011
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Reconfigurable Technology for Future Optical Access Networks Book Excerpt:

Fiber-based access is recognized as the most promising technology for solving broadband bandwidth bottlenecks. Time division multiplexing passive optical networks (TDM-PONs) that are passive and non-reconfigurable are currently the most widely deployed type of fiber access networks. However, due to their passive nature, TDM-PONs faces several limitations such as inflexible service area coverage, lack of intelligence for control, and inability to counteract security attacks. In order to address the current limitations of optical access networks, we propose reconfigurable technologies for next generation PONs. Two novel reconfigurable technologies are proposed, analyzed, and experimentally evaluated. The first solution is a reconfigurable power-and wavelength- assignment technology based on a novel non-volatile, reconfiguration node. The proposed remote node can reconfigure the network to adapt it to varying degrees of deployment conditions and/or network attacks. Moreover, the proposed remote node incorporates a novel quasi-passive device that does not consume energy once it is reconfigured into a new latching state. Therefore, the proposed remote node has very low energy consumption and does not require local power supply to preserve the passive character of the distribution network. In particular, two novel quasi-passive optical power splitter technologies based on Micro-Electro-Mechanical Systems (MEMS) and transition metal oxide have been designed for the reconfigurable device. A simulation study shows the proposed reconfigurable device would outperform traditional passive splitter in terms of maximum number of supportable users under realistic deployment conditions. The second solution addresses the issue of reconfigurable network consolidation and infrastructure simplification. Current TDM-PONs suffers from limited reach and split-ratio. To enhance the performance in terms of service range and quality of service, reconfigurable network consolidation is a promising solution. It can also simplify the network and reduce cost. We propose the following novel reconfigurable technologies for consolidation and simplification of next generation access networks: (1) Passive reach-extension technology for the drop section of optical access networks; (2) Sleep mode ONUs for energy saving; (3) Centrally managed optical signature that can monitor and protect the upstream link; and (4) Multi-rate burst mode receivers. These reconfigurable technologies can bring the intelligence into optical access networks and improve the efficiency and flexibility for next generation optical access networks.

Phase Change Materials

Phase Change Materials
Author: Simone Raoux,Matthias Wuttig
Publsiher: Springer Science & Business Media
Total Pages: 430
Release: 2010-06-10
ISBN: 0387848746
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Phase Change Materials Book Excerpt:

"Phase Change Materials: Science and Applications" provides a unique introduction of this rapidly developing field. Clearly written and well-structured, this volume describes the material science of these fascinating materials from a theoretical and experimental perspective. Readers will find an in-depth description of their existing and potential applications in optical and solid state storage devices as well as reconfigurable logic applications. Researchers, graduate students and scientists with an interest in this field will find "Phase Change Materials" to be a valuable reference.