Download or read book Fabrication of Electron Bombarded Semiconductor EBS Diodes written by Barry E. Burke and published by . This book was released on 1974 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is a complete description of the design criteria and the processes used for the fabrication of electron-bombarded semiconductor diodes for Class C operation at 2.1 GHz and lower frequencies. The devices are planar p-n junction diodes fabricated on n/n(+) epitaxial material with a deep diffused guard ring surrounding the thin junction which the electron beam penetrates. Leakage currents are sufficiently low so that thermal runaway does not occur until the device temperature exceeds 350C. It is demonstrated that a Schottky barrier is not a good choice for these large area power devices due to higher leakage current, and that a p-n junction is to be preferred. However, a layer of metal was needed to reduce the net sheet resistance of the thin p+ junction and a thin (approximately 300A) sputtered film of molybdenum was shown to be a good choice in this case. The use of Mo-Au metalization proved to be a simple and reliable system for these devices. (Modified author abstract).
Download or read book EBS Diode Arrays written by Klaus K. Schuegraf and published by . This book was released on 1973 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: S, Silicon, Fabrication, Specifications, Electrical properties, Gain, PassivityDesignThe objective of this study was to determine methods of fabricating an array of fifth silicon diodes for application in an electron beam semiconductor (EBS) device. Lateral dimensions of the diode array specified in the procurement specification were necessary requirements. The diode arrays were processed with poly silicon and aluminum as well as phosphorous glass passivating layers. An evaluation of the stability of the diode reverse characteristics under electron bombardment was made. Measurements of electron gain and pulse response were performed. Several 50 element diode arrays were fabricated, tested and evaluated. Recommendations for making electrical connections to the diode arrays were made. (Modified author abstract).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Average Power Broadband Electron Bombarded Semiconductor EBS Amplifier written by Bruce Bell and published by . This book was released on 1979 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the current reporting period the analysis phase of the program was completed, which included the diode design study, thermal analysis and output matching circuit analysis. Based on the analysis, modifications are currently being made to two existing diode mask sets. Diode fabrication will not continue until the mask sets are completed. Similarly, device fabrication will not continue until additional testing has been completed on Contract no. F30602-78-C-0247, whose goal is to develop a 500 W peak, 20% duty amplifier for JTIDS in conjunction with this program. It is planned that device fabrication will resume by May, which will allow sufficient time for completion of the program on schedule.
Download or read book Advances in Electronics and Electron Physics written by and published by Academic Press. This book was released on 1978-02-22 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Electronics and Electron Physics
Download or read book Microcircuit Reliability Bibliography written by and published by . This book was released on 1978 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Japanese Science and Technology 1983 1984 written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch and published by . This book was released on 1985 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1978 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1978 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Semiconductor Devices for Power Conditioning written by P. Roggwiller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Brown Boveri Symposia are by now part of firmly established tradition. This is the seventh event in a series which was initiated shortly afer Corporate Research was established as a separate entity within our Company; the Symposia are held every other year. The themes to date have been 1969 Flow Research on Blading 1971 Real-Time Control of Electric Power Systems 1973 High-Temperature Materials in Gas Turbines 1975 Nonemissive Electrooptic Displays 1977 Current Interruption in High-Voltage Networks 1979 Surges in High-Voltage Networks 1981 Semiconductor Devices for Power Conditioning Why have we chosen these titles? At the outset we established certain selection criteria; we felt that a subject for a Symposium should fulfill the following require ments: It should characterize a part of a thoroughly scientific discipline; in other words, it should describe an area of scholarly study and research. It should be of current interest in the sense that important results have recently been obtained and considerable research effort is underway in the international scientific community. It should bear some relation to the scientific and technological acitivity of our Company. Let us look at the requirement "current interest": Some of the topics on the list have been the subject of research for several decades, some even from the beginning of the century. One might wonder, then, why such fields could be regarded as particularly timely in the 1960s and 1970s. A few remarks on this subject therefore are in order.
Download or read book Solid State Research written by Lincoln Laboratory and published by . This book was released on 1973 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electron Beam Induced Degradation in EBS Diodes written by William Eric Krag and published by . This book was released on 1974 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes the effects of ionizing radiation on oxide-semiconductor structures and, in particular, the effects of electron beams on the characteristics of EBS devices. Several methods of protecting the EBS diodes from the effects of the high energy electron beam are proposed and discussed. Brief mention is made of some experiments which have been performed. (Author).
Download or read book Unclassified Publications of Lincoln Laboratory written by Lincoln Laboratory and published by . This book was released on 1969 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Detector Research And Development For The Superconducting Super Collider Proceedings Of The Symposium written by Valerie Kelly and published by World Scientific. This book was released on 1991-05-29 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last three years a significant program of detector technology research and development for high luminosity, high energy hadron-hadron colliders has been underway in the United States, Japan and Europe. In as much as the first formal steps have been undertaken to initiate the experimental program at the Superconducting Super Collider (SSC), it is appropriate to assess in detail the status of this R&D effort.Results and Plans for Advanced Technology R&D for Particle Physics Detectors Appropriate for SSC Experiments are Presented. Specific Topics include: Calorimetry; Particle Tracking and Identification Techniques; Vertex-Detection; Magnets; Front-End Electronics; Data Acquisition Electronics; Techniques in Triggering; Data Transmission; Data Analysis and Simulation Software; Studies on Radiation Damage to Materials and Electronics.
Download or read book Reliability Testing of Electron Bombarded Semiconductor Diodes written by Aris Silzars and published by . This book was released on 1973 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reliability tests of reverse biased semiconductor diodes operating in electron bombarded semiconductor devices are described. One device operating Class B at 20 W/ sq mm power dissipation density has been tested in excess of 10,000 hours. Another similar device is approaching 10,000 hours of operation. No degradation in performance characteristics has been observed in either device. The diodes used in these devices incorporate state-of-the-art passivation techniques including pillar supported integral metal beam shield. (Author).
Download or read book Government Reports Annual Index written by and published by . This book was released on 1975 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Era in Space Transportation written by L. G. Napolitano and published by Elsevier. This book was released on 2013-10-02 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: A New Era In Space Transportation contains selected papers presented at the 27th International Astronautical Congress, held in Anaheim, California in October 1976. The book presents a survey of the trends and developments in astronomical research in the world. The proceedings cover a variety of points of view on the aspects of space transportation. It is divided into four parts. Part I is devoted to theme sessions, lectures, and a comprehensive look into the American and European programs of space transportation. The second part addresses certain areas in the fields of Engineering and Life Sciences such as Astrodynamics, Bioastronautics, Fluid Dynamics, Materials and Structures, Propulsion, Fluid Dynamics of Planetary Atmospheres, and Laser Uses in Propulsion. Part III deals with Space Technology and Space Systems. The final part focuses on relevant applications like telecommunications, remote sensing of earth resources, and material processing in space. Engineers, astronomers, astrophysicists, biologists, industrialists, and researchers in the field of space technology will find this book a good source of information.
