187 resources related to Magnetoresistive devices
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The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE
The International Conference on Robotics and Automation (ICRA) is the IEEE Robotics and Automation Society’s biggest conference and one of the leading international forums for robotics researchers to present their work.
the IEEE/IEDM has been the world's main forum for reporting breakthroughs in technology, design, manufacturing, physics and the modeling of semiconductors and other electronic devices. Topics range from deep submicron CMOS transistors and memories to novel displays and imagers, from compound semiconductor materials to nanotechnology devices and architectures, from micromachined devices to smart -power technologies, etc.
The Conference focuses on all aspects of instrumentation and measurement science andtechnology research development and applications. The list of program topics includes but isnot limited to: Measurement Science & Education, Measurement Systems, Measurement DataAcquisition, Measurements of Physical Quantities, and Measurement Applications.
INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Serves as a compendium for papers on the technological advances in control engineering and as an archival publication which will bridge the gap between theory and practice. Papers will highlight the latest knowledge, exploratory developments, and practical applications in all aspects of the technology needed to implement control systems from analysis and design through simulation and hardware.
Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronic devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.
1990 IEEE International Magnetics Conference (INTERMAG), 1990
1996 Proceedings Electrical Overstress/Electrostatic Discharge Symposium, 1996
Many precautions are taken to avoid damaging electrostatic discharge (ESD) through disk drive magnetic recording heads featuring readback via a magnetoresistive (MR) sensor. By optimizing protective spark-gaps (PSG) in the recording head, the extent of ESD damage can be reduced. Human Body Model (HBM), Machine Model (MM) and Charged Device Model (CDM) transients are applied to simulated soft-adjacent-layer (SAL)-biased MR ...
1997 IEEE International Conference on Systems, Man, and Cybernetics. Computational Cybernetics and Simulation, 1997
A magnetoresistor sensor is proposed as an alternative to the conventional magnetic loop for automobile detection and traffic control. Underground magnetic loops have been used to detect the presence of vehicles at the roadway intersections for the past few decades. The detection scheme is based on the principle that the magnetic flux linking the buried loop changes whenever a vehicle ...
IEEE Transactions on Magnetics, 1996
Statistical treatment of the succession in time of the Barkhausen-noise pulses shows that magnetic noise possesses characteristics that are similar to those of electric shot noise. On the other hand, the electric shot-noise intensity in a noisy component is known to be related directly to the square root of the dc current through the component. Hence, it is intriguing to ...
IEEE Transactions on Magnetics, 1974
Various failure modes of Permalloy magnetoresistors are evaluated. Magnetic failure of magnetoresistors can be eliminated by passivation with evaporated SiO and sputtered Al2O3and Si3N4films. Effect of the permalloy/Au interaction at the sensor/lead metallization interface was investigated by high current and temperature stressing (5.5 × 106A/cm2and 330°C) of actual sensors, and by He-ion nuclear backscattering and x-ray diffraction analysis of Au/permalloy ...
IMS 2011 Microapps - Volume Manufacturing Trends for Automotive Radar Devices
IEEE Life Sciences: Wearable Medical Devices Advancing bioengineering
Analog Devices SP4T RF MEMS Switch with Integrated Driver Circuitry for RF Instrumentation: MicroApps 2015 - Analog Devices
A Unified Hardware/Software Co-Design Framework for Neuromorphic Computing Devices and Applications - IEEE Rebooting Computing 2017
APEC 2015: KeyTalks - How to Optimize Performance and Reliability of GaN Power Devices
802.15: Wireless Personal Area Network
Prototyping MIMO Systems with the AD9361: MicroApps 2015 - Analog Devices
802.19: Wireless Coexistence
Radiated Performance Assessment of Wireless Communications Devices - An Operator's Perspective
EDA Challenges in Designing Computing Systems with postCMOS Devices - IEEE Rebooting Computing 2017
CES 2015 DAY 1: TAN LE AND MIND-CONTROL TECHNOLOGY
IMS 2012 Special Sessions: The Evolution of Some Key Active and Passive Microwave Components - K. R. Varian
APEC 2011-GaN Based Power Devices in Power Electronics
IMS 2012 Special Sessions: The Evolution of Some Key Active and Passive Microwave Components - E. C. Niehenke
Evaluating Over-The-Air Performance of MIMO Wireless Devices
Mobile Internet Devices at Intel
Vint Cerf: A Globecom 2019 Keynote
Security and Privacy in a World of Connected Devices
The Long Term Reliability of Gallium Nitride
Many precautions are taken to avoid damaging electrostatic discharge (ESD) through disk drive magnetic recording heads featuring readback via a magnetoresistive (MR) sensor. By optimizing protective spark-gaps (PSG) in the recording head, the extent of ESD damage can be reduced. Human Body Model (HBM), Machine Model (MM) and Charged Device Model (CDM) transients are applied to simulated soft-adjacent-layer (SAL)-biased MR heads with and without protective spark-gaps. Design principles for ESD-damage-suppressing spark-gaps in MR heads are developed and several implementations compared.
A magnetoresistor sensor is proposed as an alternative to the conventional magnetic loop for automobile detection and traffic control. Underground magnetic loops have been used to detect the presence of vehicles at the roadway intersections for the past few decades. The detection scheme is based on the principle that the magnetic flux linking the buried loop changes whenever a vehicle is present above the plane of the loop. However, it has long been recognized that these magnetic loops are intrusive, expensive to install, and costly to maintain. Besides not very reliable, they are incapable of detecting the differences between cars, trucks, and motorcycles. In addition to the permanent magnetism inherent to a vehicle, the Earth's magnetic field also induces in it a magnetic dipole field. The vector sum of the induced and permanent fields may be exploited by a vehicle recognition and identification system or device. By means of systems modeling and computer simulation, the paper analyzes and evaluates such a vehicle sensing device.
Statistical treatment of the succession in time of the Barkhausen-noise pulses shows that magnetic noise possesses characteristics that are similar to those of electric shot noise. On the other hand, the electric shot-noise intensity in a noisy component is known to be related directly to the square root of the dc current through the component. Hence, it is intriguing to relate in the same manner the magnetic-noise flux-fluctuations to a magnetic entity similar to the dc current in the electric case. The present work is a successful attempt to demonstrate that such relationship exists. This is attained by employing the duality that relates the time-derivative of the magnetic flux to the electric current. The magnetic noise measurements of commercially available thin-film magnetoresistors confirm the applicability of the proposed approach. The noise was generated by exciting the magnetoresistors by an ac magnetic field along their easy axes. The level of the resulted flux time- derivative was changed by varying the excitation frequency.
Various failure modes of Permalloy magnetoresistors are evaluated. Magnetic failure of magnetoresistors can be eliminated by passivation with evaporated SiO and sputtered Al2O3and Si3N4films. Effect of the permalloy/Au interaction at the sensor/lead metallization interface was investigated by high current and temperature stressing (5.5 × 106A/cm2and 330°C) of actual sensors, and by He-ion nuclear backscattering and x-ray diffraction analysis of Au/permalloy sheet film couples. Stripe cracking failures occur at the negative terminal. Significant interdiffusion of Au/permalloy can occur. However, the interdiffusion is not particularly deleterious to sensor performance.
By integrating a magnetic flux concentrator (IMC) at the surface of a Hall magnetic sensor, we can dramatically improve its characteristics. Here we compare the performance of a new IMC Hall sensor ASIC with the performance of traditional magnetic field sensors, such as AMR, GMR, and conventional Hall sensor ASICs. We find that the detectivities of AMRs and GMRs for AC magnetic fields are much better than those of Hall ASICs; for low-frequency fields, the performance gap is smaller; but for DC fields, the resolution of the IMC Hall ASIC is much better than that of GMRs and approaches the resolution of a nonswitched AMR. Also according other parameters, the IMC Hall ASIC is positioned in the gap between AMRs, GMRs, and the conventional Hall ASIC magnetic field sensors.
The realization of a gyrator network with the use of rnagnetoresistive devices is analyzed from the viewpoint of minimizing the required number of negative- resistance devices. It is demonstrated that the special nature of these devices, which permits their output polarities to be easily reversed, enables the gyrator network to be realized using only one negative-resistance element. The devices investigated herein are the cryotron operating in a linear mode and the conventional magnetoresistive device. The various methods of connecting the devices are compared, and considerations are given to the advantages and the disadvantages involved in the practical implementation of the various circuit arrangements.
With soft products, especially those with loose filing, the package dynamics are continually changing and the and thus cannot be successfully modelled. The conformance of such products when mechanically handled also results in a high probability of packet rupture. A collaborative project, funded by EPSRC and DTI under the LINK initiative, is investigating the problems of handling soft products in the form of bagged loose materials. The partners De Montfort University, Birmingham University and Robotec Ltd., have designed a prototype system utilising air handling to cushion fragile products and a vision system to determine package orientation. The vision system is utilised as a sensor to provide nonconformance input to a novel control and actuator system. The actuators utilise piezo-mechanically operated air microjets to steer the packages into the correct orientation and propel them along a pneumatic support "cushion". Actuator systems are also being designed utilising magnetostrictive materials and/or moire mesh techniques. The control system is reactive and adaptive and makes use of distributed parallel microcontrollers. The controllers are based on fuzzy rules and have elements of intelligent learning activity to modify the rules.<<ETX>>
Consumer electronics devices are usually embedded where considerable consolidation of electronic components result in cost savings, miniaturization enablement, and higher reliability. An important factor in embedded electronic product operation, cost, performance, and power use is employing various memory technologies for content caching and buffering. There is a significant opportunity in the market for consumer semiconductor electronics for Internet of Things (IoT) and automotive products. The total automotive semiconductor electronics market is estimated at US$42 billion, and the total IoT semiconductor market is estimated at US$34 billion.
Summary form only given. In this paper, we present a different approach by using circularly shaped elements exhibiting a different magnetization state. The magnetic vortex is one of the fundamental magnetization ground states occurring in disk-shaped thin film elements and is characterized by minimization of the demagnetizing energy at the expense of exchange energy. The state is described as free of hysteresis and planar stray-fields, and discussed as potential oscillator in spin-torque systems, memory bits and magnetic field sensors. In order to compare important parameters like resistance, magnetoresistance amplitude, sensitivity, hysteresis, critical fields like nucleation and annihilation fields in dependence on the free layer thickness and disk radius, single and arrays (10 and 1750 in number) of GMR disks have been fabricated by optical lithography and contacted.
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