An Assessment Of Potential Nonlinear Circuit Models For The Characterization Of Resonant Tunneling Diodes
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An Assessment Of Potential Nonlinear Circuit Models For The Characterization Of Resonant Tunneling Diodes
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Author :
language : en
Publisher:
Release Date : 1996
An Assessment Of Potential Nonlinear Circuit Models For The Characterization Of Resonant Tunneling Diodes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
The intrinsically fast process of resonant tunneling through double barrier heterostructures along with the existence of negative differential resistance in the current-voltage characteristic of these structures has led to their implementation as sources for high frequency electromagnetic energy. While sources based upon resonant tunneling diodes (RTD's) have produced frequency of oscillations up to 712 GHz, only microwatt levels of performance have been achieved above 100 GHz. Since stability criteria play a critical role in determining the deliverable power of any oscillator, a physically accurate equivalent-circuit model for the RTD is extremely important for optimizing the dynamics of the device-cavity package. This study identifies a distinctly new equivalent circuit model for characterizing the modes of oscillation in RTD-based sources. Specifically, in order to exhibit the fundamental self-oscillations and the overall I-V characteristics (plateau structure and hysteresis) observed experimentally, an accurate circuit model of the RTD must incorporate: (1) a quantum-well inductance which directly chokes the nonlinear conductance and (2) a nonlinear access resistance, associated with the accumulation of charge in the injection region of the double barriers, with a nonlocal dependence on the bias across the double barrier structure.
Ac Characterization And Modeling Of Resonant Tunneling Diodes
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Author : John Paul Mattia
language : en
Publisher:
Release Date : 1991
Ac Characterization And Modeling Of Resonant Tunneling Diodes written by John Paul Mattia and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
The Growth And Characterization Of Resonant Tunneling Diodes
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Author : Tom Peter Edward Broekaert
language : en
Publisher:
Release Date : 1989
The Growth And Characterization Of Resonant Tunneling Diodes written by Tom Peter Edward Broekaert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Ultrafast Phenomena In Semiconductors
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Author :
language : en
Publisher:
Release Date : 1998
Ultrafast Phenomena In Semiconductors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Gallium arsenide semiconductors categories.
Analytical Modeling Of Silicon Based Resonant Tunneling Diode For Rf Oscillator Application
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Author : Emanuela Buccafurri
language : en
Publisher:
Release Date : 2010
Analytical Modeling Of Silicon Based Resonant Tunneling Diode For Rf Oscillator Application written by Emanuela Buccafurri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Since the introduction in microelectronics of the MOS transistor, the trend has been to reduce the size of each device, in order to increase density and performance, and to reduce costs. Devices nowadays are in a range of dimensions governs by Quantum Physics. At the nano scale, it may be smarter to integrate new devices operating according to the law of quantum physics rather than to classical Physics. In this context, resonant tunneling diodes (RTDs) present interesting characteristics. Its maximum operating frequency is in the Terahertz range and offers a wide range of applications, in analog (analog-digital converter ADC, frequency divider or multiplier, oscillator as well as digital ("multi-value" logic) circuits. Its I-V characteristics present an unusual negative differential resistance (NDR). Such negative differential resistance is usually achieved by a circuit involving more devices, and significant power consumption. Like most of the other tunnel devices, the first RTD was realized on III-V materials. Nevertheless, difficulty to integrate III-V materials on silicon, pushed to find silicon compatible solution for RTD. In this work, an alternative option to integrate these innovative devices in a silicon process, exploiting the vertical transport (gate to gate) in a double gate MOSFET has been considered. The aim of this work is thus to estimate by the means of an original analytical models, the theoretical expected performances of silicon based RTDs (static and dynamic behavior) and to compare them with conventional heterostructures. The high operating frequency of RTD is one of the major advantages of this device, for this reason an accurate frequency analysis has been carried out in collaboration with the Universidad Autonoma de Barcelona in the Xavier Oriols team. Finally, this model has been introduced in a circuit simulator (CADENCE), and used to estimate the performances of RF oscillators based on silicon RTD.
Index To Ieee Publications
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Author : Institute of Electrical and Electronics Engineers
language : en
Publisher:
Release Date : 1996
Index To Ieee Publications written by Institute of Electrical and Electronics Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Electric engineering categories.
Issues for 1973- cover the entire IEEE technical literature.
Conference Digest Seventeenth International Conference On Infrared And Millimeter Waves
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Author : Richard J. Temkin
language : en
Publisher:
Release Date : 1992
Conference Digest Seventeenth International Conference On Infrared And Millimeter Waves written by Richard J. Temkin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Antennas (Electronics) categories.
Research In Progress
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Author :
language : en
Publisher:
Release Date : 1992
Research In Progress written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Military research categories.
Nanobrain
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Author : Anirban Bandyopadhyay
language : en
Publisher: CRC Press
Release Date : 2020-04-03
Nanobrain written by Anirban Bandyopadhyay and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-03 with Science categories.
Making an artificial brain is not a part of artificial intelligence. It will be a revolutionary journey of mankind exploring a science where one cannot write an equation, a material will vibrate like geometric shape, and then those shapes will change to make decisions. Geometry of silence plays like a musical instrument to mimic a human brain; our thoughts, imagination, everything would be a 3D shape playing as music; composing music would be the brain’s singular job. For a century, the Turing machine ruled human civilization; it was believed that irrespective of complexity all events add up linearly. This book is a thesis to explore the science of decision-making where events are 3D-geometric shapes, events grow within and above, never side by side. The book documents inventions and discoveries in neuroscience, computer science, materials science, mathematics and chemistry that explore the possibility of brain or universe as a time crystal. The philosophy of Turing, the philosophy of membrane-based neuroscience and the philosophy of linear, sequential thought process are challenged here by considering that a nested time crystal encompasses the entire conscious universe. Instead of an algorithm, the pattern of maximum free will is generated mathematically and that very pattern is encoded in materials such that its natural vibration integrates random events exactly similar to the way nature does it in every remote corner of our universe. Find how an artificial brain avoids any necessity for algorithm or programming using the pattern of free will.