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"Semiconductor-On-Insulator Materials for NanoElectronics Applications” is devoted to the fast evolving field of modern nanoelectronics, and more particularly to the physics and technology of nanoelectronic devices built on semiconductor-on-insulator (SemOI) systems. The book contains the achievements in this field from leading companies and universities in Europe, USA, Brazil and Russia. It is articulated around four main topics: 1. New semiconductor-on-insulator materials; 2. Physics of modern SemOI devices; 3. Advanced characterization of SemOI devices; 4. Sensors and MEMS on SOI. "Semiconductor-On-Insulator Materials for NanoElectonics Applications” is useful not only to specialists in nano- and microelectronics but also to students and to the wider audience of readers who are interested in new directions in modern electronics and optoelectronics.
The need for advanced thermal management materials in electronic packaging has been widely recognized as thermal challenges become barriers to the electronic industry’s ability to provide continued improvements in device and system performance. With increased performance requirements for smaller, more capable, and more efficient electronic power devices, systems ranging from active electronically scanned radar arrays to web servers all require components that can dissipate heat efficiently. This requires that the materials have high capability of dissipating heat and maintaining compatibility with the die and electronic packaging. In response to critical needs, there have been revolutionary advances in thermal management materials and technologies for active and passive cooling that promise integrable and cost-effective thermal management solutions. This book meets the need for a comprehensive approach to advanced thermal management in electronic packaging, with coverage of the fundamentals of heat transfer, component design guidelines, materials selection and assessment, air, liquid, and thermoelectric cooling, characterization techniques and methodology, processing and manufacturing technology, balance between cost and performance, and application niches. The final chapter presents a roadmap and future perspective on developments in advanced thermal management materials for electronic packaging.
Advanced Field-Effect Transistors: Theory and Applications offers a fresh perspective on the design and analysis of advanced field-effect transistor (FET) devices and their applications. The text emphasizes both fundamental and new paradigms that are essential for upcoming advancement in the field of transistors beyond complementary metal–oxide–semiconductors (CMOS). This book uses lucid, intuitive language to gradually increase the comprehension of readers about the key concepts of FETs, including their theory and applications. In order to improve readers’ learning opportunities, Advanced Field-Effect Transistors: Theory and Applications presents a wide range of crucial topics: Design and challenges in tunneling FETs Various modeling approaches for FETs Study of organic thin-film transistors Biosensing applications of FETs Implementation of memory and logic gates with FETs The advent of low-power semiconductor devices and related implications for upcoming technology nodes provide valuable insight into low-power devices and their applicability in wireless, biosensing, and circuit aspects. As a result, researchers are constantly looking for new semiconductor devices to meet consumer demand. This book gives more details about all aspects of the low-power technology, including ongoing and prospective circumstances with fundamentals of FET devices as well as sophisticated low-power applications.
Heat in most semiconductor materials, including the traditional group IV elements (Si, Ge, diamond), III–V compounds (GaAs, wide-bandgap GaN), and carbon allotropes (graphene, CNTs), as well as emerging new materials like transition metal dichalcogenides (TMDCs), is stored and transported by lattice vibrations (phonons). Phonon generation through interactions with electrons (in nanoelectronics, power, and nonequilibrium devices) and light (optoelectronics) is the central mechanism of heat dissipation in nanoelectronics. This book focuses on the area of thermal effects in nanostructures, including the generation, transport, and conversion of heat at the nanoscale level. Phonon transport, including thermal conductivity in nanostructured materials, as well as numerical simulation methods, such as phonon Monte Carlo, Green’s functions, and first principles methods, feature prominently in the book, which comprises four main themes: (i) phonon generation/heat dissipation, (i) nanoscale phonon transport, (iii) applications/devices (including thermoelectrics), and (iv) emerging materials (graphene/2D). The book also covers recent advances in nanophononics—the study of phonons at the nanoscale. Applications of nanophononics focus on thermoelectric (TE) and tandem TE/photovoltaic energy conversion. The applications are augmented by a chapter on heat dissipation and self-heating in nanoelectronic devices. The book concludes with a chapter on thermal transport in nanoscale graphene ribbons, covering recent advances in phonon transport in 2D materials. The book will be an excellent reference for researchers and graduate students of nanoelectronics, device engineering, nanoscale heat transfer, and thermoelectric energy conversion. The book could also be a basis for a graduate special topics course in the field of nanoscale heat and energy.
The path of down-scaling traditional MOSFET is reaching its technological, economic and, most importantly, fundamental physical limits. Before the dead-end of the roadmap, it is imperative to conduct a broad research to find alternative materials and new architectures to the current technology for the MOSFET devices. Beyond silicon electronic materials like group III-V heterostructure, ferroelectric material, carbon nanotubes (CNTs), and other nanowire-based designs are in development to become the core technology for non-classical CMOS structures. Field effect transistors (FETs) in general have made unprecedented progress in the last few decades by down-scaling device dimensions and power supply level leading to extremely high numbers of devices in a single chip. High density integrated circuits are now facing major challenges related to power management and heat dissipation due to excessive leakage, mainly due to subthreshold conduction. Over the years, planar MOSFET dimensional reduction was the only process followed by the semiconductor industry to improve device performance and to reduce the power supply. Further scaling increases short-channel-effect (SCE), and off-state current makes it difficult for the industry to follow the well-known Moore’s Law with bulk devices. Therefore, scaling planar MOSFET is no longer considered as a feasible solution to extend this law. The down-scaling of metal-oxide-semiconductor field effect transistors (MOSFETs) leads to severe short-channel-effects and power leakage at large-scale integrated circuits (LSIs). The device, which is governed by the thermionic emission of the carriers injected from the source to the channel region, has set a limitation of the subthreshold swing (S) of 60 mV/decade at room temperature. Devices with ‘S’ below this limit is highly desirable to reduce the power consumption and maintaining a high Ion/Ioff current ratio. Therefore, the future of semiconductor industry hangs on new architectures, new materials or even new physics to govern the flow of carriers in new switches. As the subthreshold swing is increasing at every technology node, new structures using SOI, multi-gate, nanowire approach, and new channel materials such as III–V semiconductor have not satisfied the targeted values of subthreshold swing. Moreover, the ultra-low-power (ULP) design required a subthreshold slope lower than the thermionic emission limit of 60 mV/decade. This value was unbreakable by the new structure (SOI FinFET). On the other hand, most of the preview proposals show the ability to go beyond this limit. However, those pre-mentioned schemes have publicized very complicated physics, design difficulties, and process non-compatibility. The objective of this research is to discuss various emerging nano-devices proposed for sub-60 mV/decade designs and their possibilities to replace the silicon devices as the core technology in the future integrated circuit. This dissertation also proposes a novel design that exploits the concept of negative capacitance. The new field-effect-transistor (FET) based on ferroelectric insulator named Silicon-On-Ferroelectric Insulator Field effect-transistor (SOFFET). This proposal is a promising methodology for future ultra low-power applications because it demonstrates the ability to replace the silicon-bulk based MOSFET, and offers a subthreshold swing significantly lower than 60 mV/decade and reduced threshold voltage to form a conducting channel. The proposed SOFFET design, which utilizes the negative capacitance of a ferroelectric insulator in the body-stack, is completely different from the FeFET and NCFET designs. In addition to having the NC effect, the proposed device will have all the advantages of an SOI device. Body-stack that we are intending in this research has many advantages over the gate-stack. First, it is more compatible with the existing processes. Second, the gate and the working area of the proposed SOFFET is like the planar MOSFET. Third, the complexity and ferroelectric material interferences are shifted to the body of the device from the gate and the working area. The proposed structure offers better scalability and superior constructability because of the high-dielectric buried insulator. Here we are providing a very simplified model for the structure. Silicon-on-ferroelectric leads to several advantages including low off-state current and shift in the threshold voltage with the decrease of the ferroelectric material thickness. Moreover, having an insulator in the body of the device increases the controllability over the channel, which leads to the reduction in the short-channel-effect (SCE). The proposed SOFFET offers low value of subthreshold swing (S) leading to better performance in the on-state. The off-state current is directly related to S. So, the off-state current is also minimum in the proposed structure.
This issue describes processing, materials and equipment for CMOS front-end integration including gate stack, source/drain and channel engineering. Topics: strained Si/SiGe and Si/SiGe on insulator; high-mobility channels including III-V¿s, etc.; nanowires and carbon nanotubes; high-k dielectrics, metal and FUSI gate electrodes; doping/annealing for ultra-shallow junctions; low-resistivity contacts; advanced deposition (e.g. ALD, CVD, MBE), RTP, UV, plasma and laser-assisted processes.
The book details sources of thermal energy, methods of capture, and applications. It describes the basics of thermal energy, including measuring thermal energy, laws of thermodynamics that govern its use and transformation, modes of thermal energy, conventional processes, devices and materials, and the methods by which it is transferred. It covers 8 sources of thermal energy: combustion, fusion (solar) fission (nuclear), geothermal, microwave, plasma, waste heat, and thermal energy storage. In each case, the methods of production and capture and its uses are described in detail. It also discusses novel processes and devices used to improve transfer and transformation processes.