Download or read book Batch Manufacturing and Transfer of Embedded Thin Film Sensors and Devices for Engineering Applications and Systems written by and published by . This book was released on 2014 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon wafers has served as the batch fabrication platform for fabrication of micro / nano scale devices. However, there is a strong need to fabricate devices on engineering substrates such as metals, diamonds, ceramics etc. desired for various engineering applications. It is extremely difficult to meet such demand due to various challenges faced during microfabrication process. Here, a novel scalable platform has been developed to facilitate batch fabrication of thin film devices at the edge of the substrates of engineering materials (such as metal, ceramics etc.) with arbitrary shapes and sizes. This process is shown to effectively eliminate photolithography related challenges such as edge bead formation at the edges/corners of arbitrary shaped substrates. At the same time it enables bulk polishing of substrates and batch fabrication of thin film devices on substrates for various engineering applications. The process technique is successfully demonstrated by fabricating thin film devices on arbitrary shaped steel substrates. This process has the potential to improve the yield by allowing more devices to be fabricated simultaneously. This can reduce the production time and cost thereby facilitating large scale fabrication. Silicon substrates face another drawback that the devices fabricated on them are neither flexible nor transferrable for harsh engineering applications. A fabrication process to fabricate and transfer thin film devices embedded in polyimides to metallic foils has been developed. The thermocouple device fabricated using this method has been implemented for hard to reach engineering applications such as temperature monitoring during ultrasonic metal welding. Process of creating point defects in diamonds using high energy carbon ion bombardment is presented. Amorphization and hence point defects in polycrystalline diamond compacts (PDCs) irradiated with carbon ions is investigated using Raman spectroscopy. These PDCs are largely used in drill bits and cutting tools. Traditionally, high energy radiation sources such as electrons, protons, neutrons etc. were used for bombarding and creating defects in diamonds. Here, we present an approach to produce point defects in diamond using carbon ions. Additionally, a method is proposed to diffusion bond two diamond surfaces with the help of radiation induced point defects diffusion.

Download or read book Advanced MEMS NEMS Fabrication and Sensors written by Zhuoqing Yang and published by Springer Nature. This book was released on 2021-10-12 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins by introducing new and unique fabrication, micromachining, and integration manufacturing methods for MEMS (Micro-Electro-Mechanical Systems) and NEMS (Nano-Electro-Mechanical Systems) devices, as well as novel nanomaterials for sensor fabrications. The second section focuses on novel sensors based on these emerging MEMS/NEMS fabrication methods, and their related applications in industrial, biomedical, and environmental monitoring fields, which makes up the sensing layer (or perception layer) in IoT architecture. This authoritative guide offers graduate students, postgraduates, researchers, and practicing engineers with state-of-the-art processes and cutting-edge technologies on MEMS /NEMS, micro- and nanomachining, and microsensors, addressing progress in the field and prospects for future development. Presents latest international research on MEMS/NEMS fabrication technologies and novel micro/nano sensors; Covers a broad spectrum of sensor applications; Written by leading experts in the field.

Download or read book Fabrication Characterization and Application of Metal Embedded Thin Film Sensors for Hostile Manufacturing Environments written by Xudong Cheng and published by . This book was released on 2008 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Expanding the Vision of Sensor Materials written by Committee on New Sensor Technologies: Materials and Applications and published by National Academies Press. This book was released on 1995-07-06 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in materials science and engineering have paved the way for the development of new and more capable sensors. Drawing upon case studies from manufacturing and structural monitoring and involving chemical and long wave-length infrared sensors, this book suggests an approach that frames the relevant technical issues in such a way as to expedite the consideration of new and novel sensor materials. It enables a multidisciplinary approach for identifying opportunities and making realistic assessments of technical risk and could be used to guide relevant research and development in sensor technologies.

Download or read book Printed Flexible Sensors written by Anindya Nag and published by Springer. This book was released on 2019-03-11 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances in the design, fabrication and implementation of flexible printed sensors. It explores a range of materials for developing the electrode and substrate parts of the sensors, on the basis of their electrical and mechanical characteristics. The sensors were processed using laser cutting and 3D printing techniques, and the sensors developed were employed in a number of healthcare, environmental and industrial applications, including: monitoring of physiological movements, respiration, salinity and nitrate measurement, and tactile sensing. The type of sensor selected for each application depended on its dimensions, robustness and sensitivity. The sensors fabricated were also embedded in an IoT-based system, allowing them to be integrated into real-time applications.

Download or read book Ultra Thin Sensors and Data Conversion Techniques for Hybrid System in Foil written by Mourad Elsobky and published by Springer Nature. This book was released on 2022-03-18 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the design, fabrication and characterization of a set of flexible electronic components, including on-foil sensors, organic thin-film transistors and ultra-thin chips. The core of the work is on showing how to combine high-performance integrated circuits with large-area electronic components on a single polymeric foil, to realize smart electronic systems for different applications, such as temperature, humidity and mechanical stress sensors. The book offers an extensive introduction to Hybrid System-in-Foil technology (HySiF), and related on-chip/on-foil passive and active components. It presents six case studies designed to highlight key HySiF challenges, together with the methodology to address those challenges. Last but not least, it describes the development of a reconfigurable, energy-efficient Analog-to-Digital Converter for HySiF. All in all, this book provides readers with extensive information on the state of the art in the design and characterization of integrated circuits and hybrid electronic systems on flexible polymeric substrates. By describing significant advances in organic thin-film transistor technology, this work is expected to pave the way to future developments in the area of energy-efficient smart sensors and integrated circuits.

Download or read book Electronic Skin written by Ali Ibrahim and published by CRC Press. This book was released on 2022-09-01 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considerable amount of effort has been devoted, over the recent years, towards the development of electronic skin (e-skin) for many application domains such as prosthetics, robotics, and industrial automation. Electronic Skin: Sensors and Systems focuses on the main components constituting the e-skin system. The e-skin system is based on: i) sensing materials composing the tactile sensor array, ii) the front end electronics for data acquisition and signal conditioning, iii) the embedded processing unit performing tactile data decoding, and iv) the communication interface in charge of transmitting the sensors data for further computing. Technical topics discussed in the book include: • Tactile sensing material; • Electronic Skin systems;• Embedded computing and tactile data decoding; • Communication systems for tactile data transmission; • Relevant applications of e-skin system; The book takes into account not only sensing materials but it also provides a thorough assessment of the current state of the art at system level. The book addresses embedded electronics and tactile data processing and decoding, techniques for low power embedded computing, and the communication interface. Electronic Skin: Sensors and Systems is ideal for researchers, Ph.D. students, academic staff and Masters/research students in sensors/sensing systems, embedded systems, data processing and decoding, and communication systems.

Download or read book Transfer Printing Methods for Fabricating Thin film Electronics on Nonconventional Substrates written by Chi Hwan Lee and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Thin-film electronics refer to devices composed from thin-films of active semiconductors, dielectrics and metallic connects that are deposited over a supporting substrate, frequently silicon or glass. Thin-film electronics are widely used for applications, ranging from solar cells, batteries, transistors, light emitting diodes to sensors. Fabrication of thin-film electronics on nonconventional substrates (e.g., papers, polymers, fabrics and metal sheets) presents exciting opportunities for realizing the next-generation of electronics, such as flexible displays, transparent touchscreen panels, wearable solar cells and bio-integrated electronics. However, fabrication of thin-film electronics on nonconventional substrates faces a significant challenge due to the mismatch between the device fabrication conditions and the tolerable processing conditions for the nonconventional substrates in terms of maximum temperature and chemical compatibility. To overcome this challenge, two transfer printing methods are developed, which involve the following main steps: (1) fabricating the thin-film electronics on a conventional silicon wafer using standard fabrication methods; (2) peeling off the entire thin-film electronics from the silicon wafer; and (3) finally attaching the thin-film electronics to nonconventional substrates. This general approach eliminates the need for further fabrication steps on the nonconventional substrates; therefore overcoming the above processing condition mismatch challenge. The first transfer printing method relies on the differences in adhesion to transfer thin-film electronics from weakly adhesive donor silicon wafer to more strongly adhesive receiver substrates. To demonstrate this, the silicon nanowire based thin-film resistors were used. Electrical characterization of the transferred thin-film electronics shows that ohmic contacts are maintained between silicon nanowires and metal electrodes, and are successfully demonstrated for applications of flexible piezoresistive sensors and temperature sensors with reliable performance. Nevertheless, about 30~50% of the devices are damaged during the peel-off process due to the high mechanical stresses. To resolve this problem, the second transfer printing method is developed, named water-assisted transfer printing method or peel-and-stick process, which relies on the phenomenon of water penetrating into the interface between Ni film and SiO2 layer. As model systems for the peel-and-stick process, we use hydrogenated amorphous silicon thin-film solar cells in addition to silicon nanowire based thin-film resistors, diodes and transistors as model systems. The transfer yield is improved to 100%, and the transferred thin-film electronics maintain their original geometries and device performances with high fidelity. We hypothesize that the peel-and-stick process is closely related to the water-assisted subcritical debonding phenomenon. So, we further experimentally investigate the critical adhesion energy of the Ni-SiO2 interface where the phenomenon of water penetrating occurs, and confirm that the critical interfacial adhesion energies are significantly reduced by 70~80% in the presence of water, compared to those in ambient environment. We believe that the peel-and-stick process has great potential for the manufacturing of high-performance thin-film electronics on diverse flexible/transparent nonconventional substrates.

Download or read book Piezoelectric Energy Harvesting written by Alper Erturk and published by John Wiley & Sons. This book was released on 2011-04-04 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The transformation of vibrations into electric energy through the use of piezoelectric devices is an exciting and rapidly developing area of research with a widening range of applications constantly materialising. With Piezoelectric Energy Harvesting, world-leading researchers provide a timely and comprehensive coverage of the electromechanical modelling and applications of piezoelectric energy harvesters. They present principal modelling approaches, synthesizing fundamental material related to mechanical, aerospace, civil, electrical and materials engineering disciplines for vibration-based energy harvesting using piezoelectric transduction. Piezoelectric Energy Harvesting provides the first comprehensive treatment of distributed-parameter electromechanical modelling for piezoelectric energy harvesting with extensive case studies including experimental validations, and is the first book to address modelling of various forms of excitation in piezoelectric energy harvesting, ranging from airflow excitation to moving loads, thus ensuring its relevance to engineers in fields as disparate as aerospace engineering and civil engineering. Coverage includes: Analytical and approximate analytical distributed-parameter electromechanical models with illustrative theoretical case studies as well as extensive experimental validations Several problems of piezoelectric energy harvesting ranging from simple harmonic excitation to random vibrations Details of introducing and modelling piezoelectric coupling for various problems Modelling and exploiting nonlinear dynamics for performance enhancement, supported with experimental verifications Applications ranging from moving load excitation of slender bridges to airflow excitation of aeroelastic sections A review of standard nonlinear energy harvesting circuits with modelling aspects.

Download or read book Thin Film Resistive Sensors written by Petru Ciureanu and published by CRC Press. This book was released on 1992 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a complete overview of thin film resistive sensors.devoted to thin-film devices. Each type of input energy is discussed in a separate chapter. Detailed descriptions are given of the materials, properties, structure and principles of operation of the sensors as well as their main applications. Results of the authors' research and comprehensive reviews of the current literature are included. The scope of this book and its accessible style make it a valuable reference work to graduate scientists and engineers in many disciplines. Written for scientists and engineers using or developing thin film sensors.

Download or read book Implantable Sensors and Systems written by Guang-Zhong Yang and published by Springer. This book was released on 2018-03-27 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implantable sensing, whether used for transient or long-term monitoring of in vivo physiological, bio-electrical, bio-chemical and metabolic changes, is a rapidly advancing field of research and development. Underpinned by increasingly small, smart and energy efficient designs, they become an integral part of surgical prostheses or implants for both acute and chronic conditions, supporting optimised, context aware sensing, feedback, or stimulation with due consideration of system level impact. From sensor design, fabrication, on-node processing with application specific integrated circuits, to power optimisation, wireless data paths and security, this book provides a detailed explanation of both the theories and practical considerations of developing novel implantable sensors. Other topics covered by the book include sensor embodiment and flexible electronics, implantable optical sensors and power harvesting. Implantable Sensors and Systems – from Theory to Practice is an important reference for those working in the field of medical devices. The structure of the book is carefully prepared so that it can also be used as an introductory reference for those about to enter into this exciting research and developing field.

Download or read book Thick Film Sensors written by Maria Prudenziati and published by . This book was released on 1994 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inaugurating a new Elsevier series, this volume presents the state of the art in thick-film technology. It disseminates the data identifying the actual performances and applications of thick-film sensors manufactured all over the world, and presents ideas underlying current activities in the research and development of new devices. Three major areas are explored in which thick-film technology contributes as a sensor technology, namely hybrid circuits for signal processing, creation of architectural structures, and transducing elements derived from thick-film pastes. Annotation copyright by Book News, Inc., Portland, OR

Download or read book Semiconductor Gas Sensors written by Raivo Jaaniso and published by Woodhead Publishing. This book was released on 2019-09-24 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconductor Gas Sensors, Second Edition, summarizes recent research on basic principles, new materials and emerging technologies in this essential field. Chapters cover the foundation of the underlying principles and sensing mechanisms of gas sensors, include expanded content on gas sensing characteristics, such as response, sensitivity and cross-sensitivity, present an overview of the nanomaterials utilized for gas sensing, and review the latest applications for semiconductor gas sensors, including environmental monitoring, indoor monitoring, medical applications, CMOS integration and chemical warfare agents. This second edition has been completely updated, thus ensuring it reflects current literature and the latest materials systems and applications. Includes an overview of key applications, with new chapters on indoor monitoring and medical applications Reviews developments in gas sensors and sensing methods, including an expanded section on gas sensor theory Discusses the use of nanomaterials in gas sensing, with new chapters on single-layer graphene sensors, graphene oxide sensors, printed sensors, and much more

Download or read book Fabrication Characterization and Application of PZT silane Nano composite Thin film Sensors and Actuators written by Weiwei Xu and published by . This book was released on 2019 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural health monitoring (SHM) plays a very important role in improving structural safety, preventing catastrophic failures and lowering maintenance costs. Current sensing methods have some limitations, such as being bulky, heavy, or brittle, making them unsuitable for SHM of composite structures. In response to the need for a flexible, printable sensor with low curing temperature, a nano-composite thin-film with additive manufacturing capability that consists of numerous lead-zirconate-titanate (PZT) nanoparticles embedded in a silane matrix is proposed and studied in this dissertation. This dissertation includes fabrication, characterization, and applications of proposed thin-films with rigid or flexible substrates and parallel-plate or interdigitated electrodes as piezoelectric actuators and sensors. Fabrication includes the following steps: First, PZT nanoparticles with size distribution ranging from 300 to 800 nanometers, are fabricated via hydrothermal synthesis.The PZT nanoparticles are then suspended in a silane-based fluid to form a PZT ink that can be printed, sprayed, or drop-cast onto a substrate. The deposited PZT ink is subsequently cured at low temperature (e.g., 120 7́ŒC) to form the PZT-silane thin- film sensor. A similar ink and thin-film sensor using crushed bulk PZT is also fabricated for comparison. The aerosol-jet printed results for both inks are provided and compared. Characterizing the material properties of the PZT-silane thin films includes two parts: dielectric and piezoelectric characterization. The dielectric constant and loss are measured through an impedance analyzer. Piezoelectric properties are estimated by applying a calibrated force directly onto the film while an accurate, double-end charge amplifier isolates and records the tiny induced charge from background electrical noise. A finite element model is created to simulate the experimental setup in order to estimate the piezoelectric coefficient d33 from the measurements. A PZT-silane nano-composite thin film with parallel-plate electrodes, drop-cast near the fixed edge of a thin flexible cantilever beam made of kapton, has been successfully demonstrated as an actuator. Velocity measurements at the free end are found to be in synchronization with actuation signals when driving the PZT-silane thin film actuator near natural frequencies of the beam. To demonstrate its validity as a vibration sensor, a PZT-silane thin film is attached to a square aluminum plate supported by four pillars. The frequency response of the charge measured from the PZT thin-film sensor is in close agreement with the vibration measurements from a laser Doppler vibrometer. PZT ink is drop-cast on a flexible substrate in two electrode formats for evaluation: parallel-plate and interdigitated electrodes (IDEs). The parallel-plate electrode format is difficult to implement, because silver electrodes cannot be properly printed onto the PZT film with high conductivity and dimension accuracy. In contrast, IDEs inkjet-printed onto a polyethylene terephthalate (PET) film demonstrate excellent resolution and conductivity. Sinusoidal voltage applied over the IDEs drives PZT thin-film with IDEs device into resonance serving as a resonator. PZT thin films with printed IDEs are demonstrated as vibration and strain sensors. Vibration tests are carried out on wing and beam structures with small angle oscillations. PZT thin-film with IDEs are attached on one side of these test structures and commercially acquired foil strain gauges on the other side for comparison and characterization. Strain and charge frequency domain measurements are recorded and amplitude peaks correlate to structural vibration frequencies. PZT-IDE sensor outputs at wing/beam oscillation frequency are found to increase with vibration amplitude and charge responses are approximately proportional to strain gauge outputs. This validates PZT-silane thin films with printed IDEs as strain sensors. The directional dependence of their sensing capability is demonstrated in theory, finite element analysis and experimentation. Two PZT-silane thin film devices with printed IDEs oriented 90 degrees apart show different sensitivities towards single-axis strain and experimentation proves PZT thin films with IDEs can distinguish strains in two dimensions.

Download or read book Study on Metal Embedded Thin Film Micro nano Photonic and Electronic Sensors written by Xugang Zhang and published by . This book was released on 2008 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Thin Film Sensor Technologies for Engine Applications written by Jih-Fen Lei and published by . This book was released on 1997 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presented at the International Gas Turbine & Aeroegine Congress & Exhibition, Orlando, FL, Jun 2-Jun 5, 1997.

Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2710 pages. Available in PDF, EPUB and Kindle. Book excerpt: