Materials and Failures in MEMS and NEMS

Materials and Failures in MEMS and NEMS
Author: Atul Tiwari,Baldev Raj
Publsiher: John Wiley & Sons
Total Pages: 432
Release: 2015-09-11
ISBN: 1119083869
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Materials and Failures in MEMS and NEMS Book Excerpt:

The fabrication of MEMS has been predominately achieved by etching the polysilicon material. However, new materials are in large demands that could overcome the hurdles in fabrication or manufacturing process. Although, an enormous amount of work being accomplished in the area, most of the information is treated as confidential or privileged. It is extremely hard to find the meaningful information for the new or related developments. This book is collection of chapters written by experts in MEMS and NEMS technology. Chapters are contributed on the development of new MEMS and NEMS materials as well as on the properties of these devices. Important properties such as residual stresses and buckling behavior in the devices are discussed as separate chapters. Various models have been included in the chapters that studies the mode and mechanism of failure of the MEMS and NEMS. This book is meant for the graduate students, research scholars and engineers who are involved in the research and developments of advanced MEMS and NEMS for a wide variety of applications. Critical information has been included for the readers that will help them in gaining precise control over dimensional stability, quality, reliability, productivity and maintenance in MEMS and NEMS. No such book is available in the market that addresses the developments and failures in these advanced devices.

Performance of a MEMS Heat Exchanger for a Cryosurgical Probe

Performance of a MEMS Heat Exchanger for a Cryosurgical Probe
Author: Michael Joseph White
Publsiher: Unknown
Total Pages: 316
Release: 2008
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Performance of a MEMS Heat Exchanger for a Cryosurgical Probe Book Excerpt:

Materials and Failures in MEMS and NEMS

Materials and Failures in MEMS and NEMS
Author: Atul Tiwari,Baldev Raj
Publsiher: John Wiley & Sons
Total Pages: 432
Release: 2015-09-11
ISBN: 1119083877
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Materials and Failures in MEMS and NEMS Book Excerpt:

The fabrication of MEMS has been predominately achieved by etching the polysilicon material. However, new materials are in large demands that could overcome the hurdles in fabrication or manufacturing process. Although, an enormous amount of work being accomplished in the area, most of the information is treated as confidential or privileged. It is extremely hard to find the meaningful information for the new or related developments. This book is collection of chapters written by experts in MEMS and NEMS technology. Chapters are contributed on the development of new MEMS and NEMS materials as well as on the properties of these devices. Important properties such as residual stresses and buckling behavior in the devices are discussed as separate chapters. Various models have been included in the chapters that studies the mode and mechanism of failure of the MEMS and NEMS. This book is meant for the graduate students, research scholars and engineers who are involved in the research and developments of advanced MEMS and NEMS for a wide variety of applications. Critical information has been included for the readers that will help them in gaining precise control over dimensional stability, quality, reliability, productivity and maintenance in MEMS and NEMS. No such book is available in the market that addresses the developments and failures in these advanced devices.

Advances in Artificial Intelligence Software and Systems Engineering

Advances in Artificial Intelligence  Software and Systems Engineering
Author: Tareq Ahram
Publsiher: Springer
Total Pages: 669
Release: 2019-06-10
ISBN: 3030204545
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Advances in Artificial Intelligence Software and Systems Engineering Book Excerpt:

This book addresses emerging issues resulting from the integration of artificial intelligence systems in our daily lives. It focuses on the cognitive, visual, social and analytical aspects of computing and intelligent technologies, highlighting ways to improve the acceptance, effectiveness, and efficiency of said technologies. Topics such as responsibility, integration and training are discussed throughout. The book also reports on the latest advances in systems engineering, with a focus on societal challenges and next-generation systems and applications for meeting them. The book is based on two AHFE 2019 Affiliated Conferences – on Artificial Intelligence and Social Computing, and on Service, Software, and Systems Engineering –, which were jointly held on July 24–28, 2019, in Washington, DC, USA.

MEMS and Microstructures in Aerospace Applications

MEMS and Microstructures in Aerospace Applications
Author: Robert Osiander,M. Ann Garrison Darrin,John L. Champion
Publsiher: CRC Press
Total Pages: 400
Release: 2018-10-03
ISBN: 1420027743
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

MEMS and Microstructures in Aerospace Applications Book Excerpt:

The promise of MEMS for aerospace applications has been germinating for years, and current advances bring the field to the very cusp of fruition. Reliability is chief among the challenges limiting the deployment of MEMS technologies in space, as the requirement of zero failure during the mission is quite stringent for this burgeoning field. MEMS and Microstructures in Aerospace Applications provides all the necessary tools to overcome these obstacles and take MEMS from the lab bench to beyond the exosphere. The book begins with an overview of MEMS development and provides several demonstrations of past and current examples of MEMS in space. From this platform, the discussion builds to fabrication technologies; the effect of space environmental factors on MEMS devices; and micro technologies for space systems, instrumentation, communications, thermal control, guidance navigation and control, and propulsion. Subsequent chapters explore factors common to all of the described systems, such as MEMS packaging, handling and contamination control, material selection for specific applications, reliability practices for design and application, and assurance practices. Edited and contributed by an outstanding team of leading experts from industry, academia, and national laboratories, MEMS and Microstructures in Aerospace Applications illuminates the path toward qualifying and integrating MEMS devices and instruments into future space missions and developing innovative satellite systems.

Heat Exchangers

Heat Exchangers
Author: Sadik Kakaç,Hongtan Liu,Anchasa Pramuanjaroenkij
Publsiher: CRC Press
Total Pages: 546
Release: 2020-01-21
ISBN: 0429892039
Category: Science
Language: EN, FR, DE, ES & NL

Heat Exchangers Book Excerpt:

Heat exchangers are essential in a wide range of engineering applications, including power plants, automobiles, airplanes, process and chemical industries, and heating, air-conditioning, and refrigeration systems. Revised and fully updated with new problem sets, Heat Exchangers: Selection, Rating, and Thermal Design, Fourth Edition presents a systematic treatment of heat exchangers, focusing on selection, thermal-hydraulic design, and rating. Topics discussed include Classification of heat exchangers Basic design methods of heat exchangers for sizing and rating problems Single-phase forced convection correlations for heat exchangers Pressure drop and pumping power for heat exchangers and piping circuits Design methods of heat exchangers subject to fouling Thermal design methods and processes for double-pipe, shell-and-tube, gasketed-plate, compact, and polymer heat exchangers Two-phase convection correlations for heat exchangers Thermal design of condensers and evaporators Micro/nanoheat transfer The Fourth Edition contains updated information about microscale heat exchangers and the enhancement heat transfer for applications to heat exchanger design and experiment with nanofluids. The Fourth Edition is designed for courses/modules in process heat transfer, thermal systems design, and heat exchanger technology. This text includes full coverage of all widely used heat exchanger types. A complete solutions manual and figure slides of the text’s illustrations are available for qualified adopting instructors.

Neural Networks and Micromechanics

Neural Networks and Micromechanics
Author: Ernst Kussul,Tatiana Baidyk,Donald C. Wunsch
Publsiher: Springer Science & Business Media
Total Pages: 221
Release: 2009-12-01
ISBN: 9783642025358
Category: Computers
Language: EN, FR, DE, ES & NL

Neural Networks and Micromechanics Book Excerpt:

Micromechanical manufacturing based on microequipment creates new possibi- ties in goods production. If microequipment sizes are comparable to the sizes of the microdevices to be produced, it is possible to decrease the cost of production drastically. The main components of the production cost - material, energy, space consumption, equipment, and maintenance - decrease with the scaling down of equipment sizes. To obtain really inexpensive production, labor costs must be reduced to almost zero. For this purpose, fully automated microfactories will be developed. To create fully automated microfactories, we propose using arti?cial neural networks having different structures. The simplest perceptron-like neural network can be used at the lowest levels of microfactory control systems. Adaptive Critic Design, based on neural network models of the microfactory objects, can be used for manufacturing process optimization, while associative-projective neural n- works and networks like ART could be used for the highest levels of control systems. We have examined the performance of different neural networks in traditional image recognition tasks and in problems that appear in micromechanical manufacturing. We and our colleagues also have developed an approach to mic- equipment creation in the form of sequential generations. Each subsequent gene- tion must be of a smaller size than the previous ones and must be made by previous generations. Prototypes of ?rst-generation microequipment have been developed and assessed.

Recuperative Heat Exchanger for a MEMS Cryoprobe

Recuperative Heat Exchanger for a MEMS Cryoprobe
Author: Michael T. Frank
Publsiher: Unknown
Total Pages: 168
Release: 2004
ISBN: 1928374650XXX
Category: Electronic Book
Language: EN, FR, DE, ES & NL

Recuperative Heat Exchanger for a MEMS Cryoprobe Book Excerpt:

Miniature Joule Thomson Cryocooling

Miniature Joule Thomson Cryocooling
Author: Ben-Zion Maytal,John M. Pfotenhauer
Publsiher: Springer Science & Business Media
Total Pages: 382
Release: 2012-09-18
ISBN: 1441982841
Category: Science
Language: EN, FR, DE, ES & NL

Miniature Joule Thomson Cryocooling Book Excerpt:

This book is the first in English being entirely dedicated to Miniature Joule-Thomson Cryocooling. The category of Joule-Thomson (JT) cryocoolers takes us back to the roots of cryogenics, in 1895, with figures like Linde and Hampson. The "cold finger" of these cryocoolers is compact, lacks moving parts, and sustains a large heat flux extraction at a steady temperature. Potentially, they cool down unbeatably fast. For example, cooling to below 100 K (minus 173 Celsius) might be accomplished within only a few seconds by liquefying argon. A level of about 120 K can be reached almost instantly with krypton. Indeed, the species of coolant plays a central role dictating the size, the intensity and the level of cryocooling. It is the JT effect that drives these cryocoolers and reflects the deviation of the "real" gas from the ideal gas properties. The nine chapters of the book are arranged in five parts. •The Common Principle of Cyrocoolers shared across the broad variety of cryocooler types •Theoretical Aspects: the JT effect and its inversion, cooling potential of coolants, the liquefaction process, sizing of heat exchangers, level of pressurization, discharge of pressure vessels • Practical Aspects: modes of operation (fast cooldown, continuous, multi-staging, hybrid cryocoolers), pressure sources, configuration, construction and technologies, flow adjustment, MEMS, open and closed cycle, cooldown process and similarity, transient behavior • Mixed Coolant cryocooling: theory, practice and applications • Special Topics: real gas choked flow rates, gas purity, clog formation, optimal fixed orifice, modeling, cryosurgical devices, warming by the inverse JT effect The theoretical aspects may be of interest not only to those working with cryocoolers but also for others with a general interest in "real" gas thermodynamics, such as, for example, the inversion of the JT effect in its differential and integral forms, and the exceptional behavior of the quantum gases. A detailed list of references for each chapter comprises a broad literature survey. It consists of more than 1,200 relevant publications and 450 related patents. The systematically organized content, arranged under a thorough hierarchy of headings, supported by 227 figures and 41 tables, and accompanied by various chronological notes of evolution, enables readers a friendly interaction with the book. Dr. Ben-Zion Maytal is a Senior Researcher at Rafael-Advanced Defense Systems, Ltd., and an Adjunct Senior Teaching Fellow at the Technion-Israel Institute of Technology, Haifa, Israel. Prof. John M. Pfotenhauer holds a joint appointment in the Departments of Mechanical Engineering and Engineering Physics at the University of Wisconsin - Madison.

Microelectromechanical Systems

Microelectromechanical Systems
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 2007
ISBN: 1928374650XXX
Category: Electromechanical devices
Language: EN, FR, DE, ES & NL

Microelectromechanical Systems Book Excerpt:

MEMS

MEMS
Author: Mohamed Gad-el-Hak
Publsiher: CRC Press
Total Pages: 488
Release: 2005-11-29
ISBN: 1420036572
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

MEMS Book Excerpt:

As our knowledge of MEMS continues to grow, so does The MEMS Handbook. The field has changed so much that this Second Edition is now available in three volumes. Individually, each volume provides focused, authoritative treatment of specific areas of interest. Together, they comprise the most comprehensive collection of MEMS knowledge available, packaged in an attractive slipcase and offered at a substantial savings. This best-selling handbook is now more convenient than ever, and its coverage is unparalleled. The first of three volumes, MEMS: Introduction and Fundamentals covers the theoretical and conceptual underpinnings of the field, emphasizing the physical phenomena that dominate at the micro-scale. It also explores the mechanical properties of MEMS materials, modeling and simulation of MEMS, control theory, and bubble/drop transport in microchannels. Chapters were updated where necessary, and the book also includes two new chapters on microscale hydrodynamics and lattice Boltzmann simulations. This volume builds a strong foundation for further study and work in the MEMS field. MEMS: Introduction and Fundamentals comprises contributions from the foremost experts in their respective specialties from around the world. Acclaimed author and expert Mohamed Gad-el-Hak has again raised the bar to set a new standard for excellence and authority in the fledgling fields of MEMS and nanotechnology.

Advances in New Heat Transfer Fluids

Advances in New Heat Transfer Fluids
Author: Alina Adriana Minea
Publsiher: CRC Press
Total Pages: 532
Release: 2017-03-16
ISBN: 1315351226
Category: Science
Language: EN, FR, DE, ES & NL

Advances in New Heat Transfer Fluids Book Excerpt:

Heat transfer enhancement has seen rapid development and widespread use in both conventional and emerging technologies. Improvement of heat transfer fluids requires a balance between experimental and numerical work in nanofluids and new refrigerants. Recognizing the uncertainties in development of new heat transfer fluids, Advances in New Heat Transfer Fluids: From Numerical to Experimental Techniques contains both theoretical and practical coverage.

Thermal Energy Harvesting for Application at MEMS Scale

Thermal Energy Harvesting for Application at MEMS Scale
Author: Steven Percy,Chris Knight,Scott McGarry,Alex Post,Tim Moore,Kate Cavanagh
Publsiher: Springer Science & Business Media
Total Pages: 71
Release: 2013-10-10
ISBN: 1461492157
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Thermal Energy Harvesting for Application at MEMS Scale Book Excerpt:

This book discusses the history of thermal heat generators and focuses on the potential for these processes using micro-electrical mechanical systems (MEMS) technology for this application. The main focus is on the capture of waste thermal energy for example from industrial processes, transport systems or the human body to generate useable electrical power. A wide range of technologies is discussed, including external combustion heat cycles at MEMS ( Brayton, Stirling and Rankine), Thermoacoustic, Shape Memory Alloys (SMAs), Multiferroics, Thermionics, Pyroelectric, Seebeck, Alkali Metal Thermal, Hydride Heat Engine, Johnson Thermo Electrochemical Converters, and the Johnson Electric Heat Pipe.

Electrochemical Micromachining for Nanofabrication MEMS and Nanotechnology

Electrochemical Micromachining for Nanofabrication  MEMS and Nanotechnology
Author: Bijoy Bhattacharyya
Publsiher: William Andrew
Total Pages: 296
Release: 2015-04-10
ISBN: 032335288X
Category: Science
Language: EN, FR, DE, ES & NL

Electrochemical Micromachining for Nanofabrication MEMS and Nanotechnology Book Excerpt:

Electrochemical Micromachining for Nanofabrication, MEMS and Nanotechnology is the first book solely dedicated to electrochemical micromachining (EMM). It begins with fundamentals, techniques, processes, and conditions, continuing with in-depth discussions of mechanisms of material removal, including an empirical model on the material removal rate for EMM (supported by experimental validation). The book moves next to construction-related features of EMM setup suitable for industrial micromachining applications, varying types of EMM, and the latest developments in the improvement of EMM setup. Further, it covers power supply, roll of electrolyte, and other major factors influencing EMM processes, and reports research findings concerning the improvement of machining accuracy and efficiency. Finally, the book devotes a chapter to the design and development of micro-tools, one of the most vital components in EMM. Covers the generation of micro features used for advanced engineering of materials for fabrication of MEMS, microsystems and other micro-engineering applications Explores the trend of decreasing size of fabricated devices, reflected in coverage of generation of high-precision nano-features on metal and semiconductors utilizing SPM, STM, and AFM, and nanotechnology aspects of EMM Describes nanofabrication utilizing anodic dissolutions for mass manufacturing by overcoming obstacles utilizing electrochemical microsystem technology (EMST) and electrochemical nanotechnology (ENT)

Uninhabited Air Vehicles

Uninhabited Air Vehicles
Author: National Research Council,Division on Engineering and Physical Sciences,Aeronautics and Space Engineering Board,National Materials Advisory Board,Commission on Engineering and Technical Systems,Committee on Materials, Structures, and Aeronautics for Advanced Uninhabited Air Vehicles
Publsiher: National Academies Press
Total Pages: 124
Release: 2000-06-28
ISBN: 9780309171779
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Uninhabited Air Vehicles Book Excerpt:

U.S. Air Force (USAF) planners have envisioned that uninhabited air vehicles (UAVs), working in concert with inhabited vehicles, will become an integral part of the future force structure. Current plans are based on the premise that UAVs have the potential to augment, or even replace, inhabited aircraft in a variety of missions. However, UAV technologies must be better understood before they will be accepted as an alternative to inhabited aircraft on the battlefield. The U.S. Air Force Office of Scientific Research (AFOSR) requested that the National Research Council, through the National Materials Advisory Board and the Aeronautics and Space Engineering Board, identify long-term research opportunities for supporting the development of technologies for UAVs. The objectives of the study were to identify technological developments that would improve the performance and reliability of “generation-after-next†UAVs at lower cost and to recommend areas of fundamental research in materials, structures, and aeronautical technologies. The study focused on innovations in technology that would “leapfrog†current technology development and would be ready for scaling-up in the post-2010 time frame (i.e., ready for use on aircraft by 2025).

Multi Wafer Rotating MEMS Machines

Multi Wafer Rotating MEMS Machines
Author: Jeffrey Lang
Publsiher: Springer Science & Business Media
Total Pages: 456
Release: 2009-09-18
ISBN: 9780387777474
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Multi Wafer Rotating MEMS Machines Book Excerpt:

The collaboration and research that was developed to produce the MIT Gas Turbine Engine are described in this book. Both the engine and generator are fabricated from silicon using a combination of bulk and surface microfabrication technologies. The book discusses the technical details that have gone into producing the engine and the overall systems-level tradeoffs, in particular its motor compressors and turbine generators, and the decisions that have been made.

Electromagnetic Fluctuations at the Nanoscale

Electromagnetic Fluctuations at the Nanoscale
Author: Aleksandr I. Volokitin,Bo N.J. Persson
Publsiher: Springer
Total Pages: 425
Release: 2017-06-09
ISBN: 3662534746
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Electromagnetic Fluctuations at the Nanoscale Book Excerpt:

This book provides a general formalism for the calculation of the spectral correlation function for the fluctuating electromagnetic field. The procedure is applied to the radiative heat transfer and the van der Waals friction using both the semi-classical theory of the fluctuating electromagnetic field and quantum field theory. Applications of the radiative heat transfer and non-contact friction to scanning probe spectroscopy are presented. The theory gives a tentative explanation for the experimental non-contact friction data. The book explains that radiative heat transfer and the van der Waals friction are largely enhanced at short separations between the bodies due to the evanescent electromagnetic waves. Particular strong enhancement occurs if the surfaces of the bodies can support localized surface modes like surface plasmons, surface polaritons or adsorbate vibrational modes. An electromagnetic field outside a moving body can also be created by static charges which are always present on the surface of the body due to inhomogeneities, or due to a bias voltage. This electromagnetic field produces electrostatic friction which can be significantly enhanced if on the surface of the body there is a 2D electron or hole system or an incommensurate adsorbed layer of ions exhibiting acoustic vibrations.

The MEMS Handbook

The MEMS Handbook
Author: Mohamed Gad-el-Hak
Publsiher: CRC Press
Total Pages: 1368
Release: 2001-09-27
ISBN: 9781420050905
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

The MEMS Handbook Book Excerpt:

The revolution is well underway. Our understanding and utilization of microelectromechanical systems (MEMS) are growing at an explosive rate with a worldwide market approaching billions of dollars. In time, microdevices will fill the niches of our lives as pervasively as electronics do right now. But if these miniature devices are to fulfill their mammoth potential, today's engineers need a thorough grounding in the underlying physics, modeling techniques, fabrication methods, and materials of MEMS. The MEMS Handbook delivers all of this and more. Its team of authors-unsurpassed in their experience and standing in the scientific community- explore various aspects of MEMS: their design, fabrication, and applications as well as the physical modeling of their operations. Designed for maximum readability without compromising rigor, it provides a current and essential overview of this fledgling discipline.

Particles Separation in Microfluidic Devices

Particles Separation in Microfluidic Devices
Author: Takasi Nisisako ,Naotomo Tottori
Publsiher: MDPI
Total Pages: 230
Release: 2020-12-10
ISBN: 3039366947
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Particles Separation in Microfluidic Devices Book Excerpt:

Microfluidic platforms are increasingly being used for separating a wide variety of particles based on their physical and chemical properties. In the past two decades, many practical applications have been found in chemical and biological sciences, including single cell analysis, clinical diagnostics, regenerative medicine, nanomaterials synthesis, environmental monitoring, etc. In this Special Issue, we invited contributions to report state-of-the art developments in the fields of micro- and nanofluidic separation, fractionation, sorting, and purification of all classes of particles, including, but not limited to, active devices using electric, magnetic, optical, and acoustic forces; passive devices using geometries and hydrodynamic effects at the micro/nanoscale; confined and open platforms; label-based and label-free technology; and separation of bioparticles (including blood cells), circulating tumor cells, live/dead cells, exosomes, DNA, and non-bioparticles, including polymeric or inorganic micro- and nanoparticles, droplets, bubbles, etc. Practical devices that demonstrate capabilities to solve real-world problems were of particular interest.

Mems Nems

Mems Nems
Author: Cornelius T. Leondes
Publsiher: Springer Science & Business Media
Total Pages: 2094
Release: 2007-10-08
ISBN: 0387257861
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Mems Nems Book Excerpt:

This significant and uniquely comprehensive five-volume reference is a valuable source for research workers, practitioners, computer scientists, students, and technologists. It covers all of the major topics within the subject and offers a comprehensive treatment of MEMS design, fabrication techniques, and manufacturing methods. It also includes current medical applications of MEMS technology and provides applications of MEMS to opto-electronic devices. It is clearly written, self-contained, and accessible, with helpful standard features including an introduction, summary, extensive figures and design examples with comprehensive reference lists.