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Monolithic Gaas Surface Acoustic Wave Chemical Microsensor Array
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Book Synopsis Monolithic GaAs Surface Acoustic Wave Chemical Microsensor Array by :
Download or read book Monolithic GaAs Surface Acoustic Wave Chemical Microsensor Array written by and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A four-channel surface acoustic wave (SAW) chemical sensor array with associated RF electronics is monolithically integrated onto one GaAs IC. The sensor operates at 690 MHz from an on-chip SAW based oscillator and provides simple DC voltage outputs by using integrated phase detectors. This sensor array represents a significant advance in microsensor technology offering miniaturization, increased chemical selectivity, simplified system assembly, improved sensitivity, and inherent temperature compensation.
Book Synopsis Monolithic Integration of GaAs SAW Chemical Microsensor Arrays and Detection Electronics by :
Download or read book Monolithic Integration of GaAs SAW Chemical Microsensor Arrays and Detection Electronics written by and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors describe the integration of an array of surface acoustic wave delay line chemical sensors with the associated RF microelectronics such that the resulting device operates in a DC in/DC out mode. The microelectronics design for on-chip RF generation and detection is presented. Both hybrid and monolithic approaches are discussed. This approach improves system performance, simplifies packaging and assembly, and significantly reduces overall system size. The array design can be readily scaled to include a large number of sensors.
Book Synopsis An Integrated Surface Acoustic Wave-Based Chemical Microsensor Array for Gas-Phase Chemical Analysis Microsystems by :
Download or read book An Integrated Surface Acoustic Wave-Based Chemical Microsensor Array for Gas-Phase Chemical Analysis Microsystems written by and published by . This book was released on 1999 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes preliminary results in the development of an acoustic wave (SAW) microsensor array. The array is based on a novel configuration that allows for three sensors and a phase reference. Two configurations of the integrated array are discussed: a hybrid multichip-module based on a quartz SAW sensor with GaAs microelectronics and a fully monolithic GaAs-based SAW. Preliminary data are also presented for the use of the integrated SAW array in a gas-phase chemical micro system that incorporates microfabricated sample collectors and concentrators along with gas chromatography (GC) columns.
Book Synopsis The Development of Integrated Chemical Microsensors in GaAs by :
Download or read book The Development of Integrated Chemical Microsensors in GaAs written by and published by . This book was released on 1999 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monolithic, integrated acoustic wave chemical microsensors are being developed on gallium arsenide (GaAs) substrates. With this approach, arrays of microsensors and the high frequency electronic components needed to operate them reside on a single substrate, increasing the range of detectable analytes, reducing overall system size, minimizing systematic errors, and simplifying assembly and packaging. GaAs is employed because it is both piezoelectric, a property required to produce the acoustic wave devices, and a semiconductor with a mature microelectronics fabrication technology. Many aspects of integrated GaAs chemical sensors have been investigated, including: surface acoustic wave (SAW) sensors; monolithic SAW delay line oscillators; GaAs application specific integrated circuits (ASIC) for sensor operation; a hybrid sensor array utilizing these ASICS; and the fully monolithic, integrated SAW array. Details of the design, fabrication, and performance of these devices are discussed. In addition, the ability to produce heteroepitaxial layers of GaAs and aluminum gallium arsenide (AlGaAs) makes possible micromachined membrane sensors with improved sensitivity compared to conventional SAW sensors. Micromachining techniques for fabricating flexural plate wave (FPW) and thickness shear mode (TSM) microsensors on thin GaAs membranes are presented and GaAs FPW delay line and TSM resonator performance is described.
Book Synopsis Development of a GaAs-Based Monolithic Surface Acoustic Wave Integrated Chemical Microsensor by :
Download or read book Development of a GaAs-Based Monolithic Surface Acoustic Wave Integrated Chemical Microsensor written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An oscillator technology using surface acoustic wave delay lines integrated with GaAs MESFET electronics has been developed for GaAs-based integrated microsensor applications. Oscillators with frequencies of 470, 350, and 200 MHz have been designed and fabricated. These oscillators are also promising for other rf applications.
Book Synopsis Chemical Sensors Four by : Michael Alan Butler
Download or read book Chemical Sensors Four written by Michael Alan Butler and published by The Electrochemical Society. This book was released on 1999 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of GaAs-Based Monolithic Surface Acoustic Wave Devices for Chemical Sensing and RF Filter Applications by :
Download or read book Development of GaAs-Based Monolithic Surface Acoustic Wave Devices for Chemical Sensing and RF Filter Applications written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Since their invention in the mid-1960's, surface acoustic wave (SAW) devices have become popular for a wide variety of applications. SAW devices represent a low-cost and compact method of achieving a variety of electronic signal processing functions at high frequencies, such as RF filters for TV or mobile wireless communications [1]. SAW devices also provide a convenient platform in chemical sensing applications, achieving extremely high sensitivity to vapor phase analytes in part-per-billion concentrations [2]. Although the SAW acoustic mode can be created on virtually any crystalline substrate, the development of SAW technology has historically focused on the use of piezoelectric materials, such as various orientations of either quartz or lithium niobate, allowing the devices to be fabricated simply and inexpensively. However, the III-V compound semiconductors, and GaAs in particular, are also piezoelectric as a result of their partially covalent bonding and support the SAW acoustic mode, allowing for the convenient fabrication of SAW devices. In addition, GaAs microelectronics has, in the past decade, matured commercially in numerous RF wireless technologies. In fact, GaAs was recognized long ago as a potential candidate for the monolithic integration of SAW devices with microelectronics, to achieve compact RF signal processing functions [3]. The details of design and fabrication of SAW devices can be found in a variety of references [1].
Book Synopsis Chemical Sensors ... : Proceedings of the Symposium by :
Download or read book Chemical Sensors ... : Proceedings of the Symposium written by and published by . This book was released on 1999 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook of Machine Olfaction by : Tim C. Pearce
Download or read book Handbook of Machine Olfaction written by Tim C. Pearce and published by John Wiley & Sons. This book was released on 2006-01-24 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Electronic noses" are instruments which mimic the sense of smell. Consisting of olfactory sensors and a suitable signal processing unit, they are able to detect and distinguish odors precisely and at low cost. This makes them very useful for a remarkable variety of applications in the food and pharmaceutical industry, in environmental control or clinical diagnostics and more. The scope covers biological and technical fundamentals and up-to-date research. Contributions by renowned international scientists as well as application-oriented news from successful "e-nose" manufacturers give a well-rounded account of the topic, and this coverage from R&D to applications makes this book a must-have read for e-nose researchers, designers and users alike.
Book Synopsis Meeting Abstracts by : Electrochemical Society. Meeting
Download or read book Meeting Abstracts written by Electrochemical Society. Meeting and published by . This book was released on 1999 with total page 1220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acoustic Wave Sensors by : D. S. Ballantine Jr.
Download or read book Acoustic Wave Sensors written by D. S. Ballantine Jr. and published by Elsevier. This book was released on 1996-10-21 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by an interdisciplinary group of experts from both industry and academia, Acoustic Wave Sensors provides an in-depth look at the current state of acoustic wave devices and the scope of their use in chemical, biochemical, and physical measurements, as well as in engineering applications. Because of the inherent interdisciplinary applications of these devices, this book will be useful for the chemist and biochemist interested in the use and development ofthese sensors for specific applications; the electrical engineer involved in the design and improvement of these devices; the chemical engineer and the biotechnologist interested in using these devices for process monitoring and control; and the sensor community at large. Provides in-depth comparison and analyses of different types of acoustic wave devices Discusses operating principles and design considerations Includes table of relevant material constants for quick reference Presents an extensive review of current uses of these devices for chemical, biochemical, and physical measurements, and engineering applications
Book Synopsis Development of a GaAs Monolithic Surface Acoustic Wave Integrated Circuit by :
Download or read book Development of a GaAs Monolithic Surface Acoustic Wave Integrated Circuit written by and published by . This book was released on 1999 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: An oscillator technology using surface acoustic wave delay lines integrated with GaAs MESFET electronics has been developed for GaAs-based integrated microsensor applications. The oscillator consists of a two-port SAW delay line in a feedback loop with a four-stage GaAs MESFET amplifier. Oscillators with frequencies of 470, 350, and 200 MHz have been designed and fabricated. These oscillators are also promising for other RF applications.
Book Synopsis Surface-Launched Acoustic Wave Sensors by : Michael Thompson
Download or read book Surface-Launched Acoustic Wave Sensors written by Michael Thompson and published by Wiley-Interscience. This book was released on 1997-04-11 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book concerns the design, operation and application of devices capable of generating acoustic waves in the ultrasonic frequency range. It emphasizes the study of chemical and/or biochemical systems imposed on the surface of such devices, whether operated in the gas- or liquid-phase, i.e. on acoustic wave chemical and biological sensors. It focuses on devices that employ acoustic waves launched and received on the same surface. It touches upon such diverse areas as acoustic wave physics, applied mathematics, chemistry, electronics, fluid mechanics, materials science and polymer science.
Book Synopsis Surface Acoustic Wave/silicon Monolithic Sensor/processor by :
Download or read book Surface Acoustic Wave/silicon Monolithic Sensor/processor written by and published by . This book was released on 1983 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of GaAs Surface Acoustic Wave Sensor in Metalorganic Chemical Vapor Deposition by : Yunong Gan
Download or read book Application of GaAs Surface Acoustic Wave Sensor in Metalorganic Chemical Vapor Deposition written by Yunong Gan and published by . This book was released on 2000 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Investigation of Polymer-coated Surface Acoustic Wave Microsensor Arrays for the Determination of Organic Solvent Vapors by : Meng-Da Hsieh
Download or read book An Investigation of Polymer-coated Surface Acoustic Wave Microsensor Arrays for the Determination of Organic Solvent Vapors written by Meng-Da Hsieh and published by . This book was released on 2003 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Department of Energy. Chemical & Biological Nonproliferation Program Publisher : ISBN 13 : Total Pages :210 pages Book Rating :4.3/5 ( download)
Book Synopsis Annual Report by : United States. Department of Energy. Chemical & Biological Nonproliferation Program
Download or read book Annual Report written by United States. Department of Energy. Chemical & Biological Nonproliferation Program and published by . This book was released on 1999 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
