Patent application number | Description | Published |
20100213934 | HIGH MAGNETIC MOMENT PARTICLE DETECTION - A device includes a sensor surface and a pair of electrodes. The sensor surface includes a first conductive layer separated from a second conductive layer by an intermediary layer, a magnetization direction of the first conductive layer and a magnetization direction of the second conductive layer having a ground state orientation of approximately 0 degrees. An electrical resistance between the pair of electrodes is determined by a magnetic field proximate the sensor surface. | 08-26-2010 |
20110303997 | MAGNETIC TUNNEL JUNCTION DEVICE - A magnetic tunnel junction device comprises a fixed magnetic layer having a first side and a second side, the fixed magnetic layer having a magnetic anisotropy that is out of the film plane of the fixed magnetic layer; a stack of a plurality of bilayers adjacent to the first side of the fixed magnetic layer, each bilayer comprising a first layer comprising at least one of cobalt, iron, a CoFeB alloy, or a CoB alloy and a second layer in contact with the first layer, the second layer comprising palladium or platinum, wherein the plurality of bilayers has a magnetic anisotropy that is out of the film plane of each of the bilayers, wherein the fixed magnetic layer is exchange coupled to the stack of the plurality of bilayers, and a tunnel barrier layer in contact with the second side of the fixed magnetic layer. | 12-15-2011 |
20120181171 | Nanoparticle Deposition Systems - Nanoparticle deposition systems including one or more of: a hollow target of a material; at least one rotating magnet providing a magnetic field that controls movement of ions and crystallization of nanoparticles from released atoms; a nanoparticle collection device that collects crystallized nanoparticles on a substrate, wherein relative motion between the substrate and at least a target continuously expose new surface areas of the substrate to the crystallized nanoparticles; a hollow anode with a target at least partially inside the hollow anode; or a first nanoparticle source providing first nanoparticles of a first material and a second nanoparticle source providing second nanoparticles of a second material. | 07-19-2012 |
20120314489 | SYSTEMS AND METHODS FOR DIRECT COMMUNICATION BETWEEN MAGNETIC TUNNEL JUNCTIONS - Systems and methods that enable direct communications between magnetic tunnel junctions are provided. In one embodiment, a device includes multiple input magnetic tunnel junctions and an output magnetic tunnel junction. The multiple input magnetic tunnel junctions are connected in parallel, and the output magnetic tunnel junction is connected in series to the input magnetic tunnel junctions. In another embodiment, a device includes a first magnetic tunnel junction, a second magnetic tunnel junction, and a nano-magnetic channel. Each of the first and the second magnetic tunnel junctions has a free layer, a nonmagnetic layer, and a fixed layer. The nano-magnetic channel connects the free layer of the first magnetic tunnel junction to the free layer of the second magnetic tunnel junction. | 12-13-2012 |
20140097829 | SEARCH COIL - A device includes an excitation coil, a detector coil, and a processing circuit. The excitation coil is aligned about a volume. The excitation coil is configured to carry a first and second biasing current and generate a magnetic field in the volume. The detector coil is configured to generate an electrical signal based on a detected field within the volume. The detected field is based on the magnetic field. The processing circuit is configured to generate data based on the electrical signal. | 04-10-2014 |
20140099663 | GMR SENSOR - A system includes a first sensor, a field source, and a processor. The first sensor includes a surface and has an electrical resistance determined by a magnetic field at the surface. The field source is configured to provide a biasing magnetic field to the surface. The biasing magnetic field is aligned parallel to the surface and aligned perpendicular relative to the surface. The magnetic field has a frequency. The processor is coupled to the sensor and is configured to determine a parameter based on a measure of a change in the resistance. The change in the resistance corresponds to the resistance at a time before onset of a magnetic field perturbance at the surface and a time after the onset of the magnetic field perturbance at the surface. | 04-10-2014 |
20140292318 | MAGNETIC BIOMEDICAL SENSORS AND SENSING SYSTEM FOR HIGH-THROUGHPUT BIOMOLECULE TESTING - A magnetic biosensor can include a magnetic stack comprising a free layer, a fixed layer, and a nonmagnetic layer between the free layer and the fixed layer. At least one of the free layer or the fixed layer may have a magnetic moment oriented out of a major plane of the free layer or the fixed layer, respectively, in an absence of an external magnetic field. The magnetic biosensor also may include a sample container disposed over the magnetic stack, a plurality of capture antibodies attached to a bottom surface of the sample container above the magnetic stack, and a magnetic field generator configured to generate a magnetic field substantially perpendicular to the major plane of the free layer or fixed layer. | 10-02-2014 |
20140299810 | IRON NITRIDE PERMANENT MAGNET AND TECHNIQUE FOR FORMING IRON NITRIDE PERMANENT MAGNET - A permanent magnet may include a Fe | 10-09-2014 |
20140334216 | General Structure for Computational Random Access Memory (CRAM) - A cell array includes a logic connection line, a plurality of bit selection lines, and a plurality of cells. Each cell includes a memory element connected to a respective bit selection line and a logic switching element that selectively connects the memory element to the logic connection line. When logic switching elements of multiple separate cells connect their respective memory elements to the logic connection line, the memory elements connected to the logic connection line operate as a logic device with an output of the logic device stored in one of the memory elements. | 11-13-2014 |
20150044778 | EXTERNAL FIELD -FREE MAGNETIC BIOSENSOR - A biosensor includes a magnetic structure having grooved surface to biologically bond magnetic labels to a biological substance within the grooves. The grooves are positioned within the magnetic structure so that stray magnetic fields from the magnetic structure magnetize magnetic labels within the groove. The magnetic labels may be magnetic nanoparticles or magnetic microbeads. The techniques may reduce or eliminate the usage of any external magnetic field generator, e.g., electromagnets or current lines. | 02-12-2015 |