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245results about "Magnetic sensor packaging" patented technology
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Unmanned aerial vehicle and operations thereof
ActiveUS20140131510A1Reduce distractionsAircraft power plantsMagnetic sensor packagingEngineeringDependability
The present invention provides methods and apparatus for unmanned aerial vehicles (UAVs) with improved reliability. According to one aspect of the invention, interference experienced by onboard sensors from onboard electrical components is reduced. According to another aspect of the invention, user-configuration or assembly of electrical components is minimized to reduce user errors.
Owner:SZ DJI TECH CO LTD
Magnetic Field Sensors and Methods for Fabricating the Magnetic Field Sensors
ActiveUS20100141249A1Improve protectionPrevent over-boostingLamination ancillary operationsSynthetic resin layered productsLead frameCondensed matter physics
Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator.
Owner:ALLEGRO MICROSYSTEMS INC
Magnetic field shaping components for magnetic field measurement systems and methods for making and using
ActiveUS20200057115A1High materialIncrease surface areaMagnetic field offset compensationMagnetic sensor packagingMagnetic fluxCondensed matter physics
A magnetic field measurement system includes at least one magnetometer; and at least one flux concentrator made of a high magnetic permeability material and configured to receive magnetic field signals from a source, to concentrate the magnetic field signals or reorient the magnetic field signals in a preselected direction, and to direct the concentrated or reoriented magnetic field signals toward at least one of the at least one magnetometer. In addition to, or as an alternative to, the flux concentrator, the system can include a passive shield made of the high magnetic permeability material. The system may also include active shielding.
Owner:HI LLC
Magnetic Field Sensors and Methods for Fabricating the Magnetic Field Sensors
ActiveUS20120013333A1Improve protectionPrevent over-boostingSolid-state devicesMagnetic sensor packagingLead frameCondensed matter physics
Magnetic field sensors and associated methods of manufacturing the magnetic field sensors include molded structures to encapsulate a magnetic field sensing element and an associated die attach pad of a lead frame and to also encapsulate or form a magnet or a flux concentrator.
Owner:ALLEGRO MICROSYSTEMS INC
Magnetic Field Sensor Integrated Circuit with Integral Ferromagnetic Material
A magnetic field sensor includes a lead frame, a semiconductor die supporting a magnetic field sensing element, a non-conductive mold material enclosing the die and a portion of the lead frame, a ferromagnetic mold material secured to the non-conductive mold material and a securing mechanism to securely engage the mold materials. The ferromagnetic mold material may comprise a soft ferromagnetic material to form a concentrator or a hard ferromagnetic material to form a bias magnet. The ferromagnetic mold material may be tapered and includes a non-contiguous central region, as may be an aperture or may contain the non-conductive mold material or an overmold material. Further embodiments include die up, lead on chip, and flip-chip arrangements, wafer level techniques to form the concentrator or bias magnet, integrated components, such as capacitors, on the lead frame, and a bias magnet with one or more channels to facilitate overmolding.
Owner:ALLEGRO MICROSYSTEMS INC
Unmanned aerial vehicle and operations thereof
ActiveUS20150060606A1Reduce distractionsAircraft power plantsUnmanned aerial vehiclesUncrewed vehicleComputer science
Owner:SZ DJI TECH CO LTD
Integrated magnetic sensor for detecting horizontal magnetic fields and manufacturing process thereof
ActiveUS20110210722A1High sensitivityMagnetic field measurement using flux-gate principleMagnetic sensor packagingSemiconductor materialsConcentrator
The integrated magnetic sensor for detecting an external magnetic field, is formed by a body of semiconductor material having a surface; an insulating layer covering the body of semiconductor material; a magnetically sensitive region, for example a Hall cell, extending inside the body; and a concentrator of ferromagnetic material, extending on the Hall cell and having a planar portion extending parallel to the surface of the substrate on the insulating layer. The concentrator terminates with a tip protruding peripherally from, and transversely to, the planar portion toward the Hall cell. When the magnetically sensitive region is a sensing coil of a fluxgate sensor, it is formed on the substrate, embedded in the insulating layer, and the tip of the concentrator can reach as far as the sensing coil.
Owner:STMICROELECTRONICS SRL
Integrated circuit package having a split lead frame
ActiveUS20130249546A1Semiconductor/solid-state device detailsSolid-state devicesEngineeringLead frame
A magnetic field sensor includes a lead frame having a plurality of leads, at least two of which have a connection portion and a die attach portion. A semiconductor die is attached to the die attach portion of the at least two leads. In some embodiments, at least one passive component is attached to the die attach portion of at least two leads.
Owner:ALLEGRO MICROSYSTEMS INC
System and method for magnetic occult lesion localization and imaging
Systems and methods for marking the location and extent of an anatomical region-of-interest, such as a tumor, using magnetic seeds whose position and orientation are measured or otherwise detected using a detection device that includes two or more magnetic sensors are described. One or more magnetic seeds are implanted to mark and define the center and extent of an anatomical region-of-interest and a magnetic sensor-based detector system is used to accurately identify the location of the magnetic seeds.
Owner:SUNNYBROOK RES INST
Magnetic sensor and production method thereof
InactiveCN101325210AReduce the numberImprove manufacturing yieldMagnetic-field-controlled resistorsSolid-state devicesMagnetizationResistor
A magnetic sensor is disclosed that has plural axes at the same time, able to be fabricated in a small number of steps. The magnetic sensor includes a substrate; and plural sensor bridge circuits each including a pair of magnetic field detectors and a pair of fixed resistors on the substrate, the pair of the magnetic field detectors and the pair of the fixed resistors being connected to form a bridge circuit, each of the magnetic field detectors being formed of a magneto-resistance effect element, and magnetization directions of the magnetic field detectors intersect with each other in a three-dimensional manner. The substrate has plural inclined surfaces, normal directions of the inclined surfaces intersect with each other in a three-dimensional manner, and the pair of the magnetic field detectors in each of the sensor bridge circuits is arranged on the same inclined surface.
Owner:RICOH KK
Minimum magnetic field detection systems and methods in magnetoresistive sensors
ActiveUS20130328556A1Magnetic sensor packagingMagnitude/direction of magnetic fieldsUltimate tensile strengthField strength
Embodiments relate to magnetoresistive sensors suitable for both angle and field strength sensing. In an embodiment, a sensor comprises two different magnetoresistive (xMR) sensor components for sensing two different aspects or characteristics of a magnetic field. In an embodiment, the first xMR sensor component is configured for magnetic field angle or rotation sensing, while the second xMR sensor component is configured for magnetic field strength sensing. In an embodiment, the second xMR sensor component is configured for magnetic field strength sensing in two dimensions. The second xMR sensor therefore can determine, in embodiment, whether the field sensed with respect to angle or rotation by the first xMR sensor component is of sufficient strength or meets a minimum magnitude threshold. If the minimum threshold is not met, an alarm or alert can be provided.
Owner:INFINEON TECH AG
Magnetic shielded package
ActiveUS20160091575A1Improve sensor sensitivityReduce impactMagnetic field offset compensationSolid-state devicesEngineeringMagnetic shield
A magnetic shielded package includes a magnetic device, a first magnetic shield member, and a second magnetic shield member. The first magnetic shield member is disposed below the magnetic device. The second magnetic shield member is disposed on the first magnetic shield member so as to cover the magnetic device. An opening portion is formed in the first magnetic shield member (i) at such a position as not to be adjacent to an outer circumference of the first magnetic shield member or (ii) an upper wall of the second magnetic shield member.
Owner:KK TOSHIBA
Integrated circuit package having a split lead frame
A magnetic field sensor includes a lead frame having a plurality of leads, at least two of which have a connection portion and a die attach portion. A semiconductor die is attached to the die attach portion of the at least two leads. The sensor further includes at least one wire bond coupled between the die and a first surface of the lead frame. The die is attached to a second, opposing surface of the lead frame in a lead on chip configuration. In some embodiments, at least one passive component is attached to the die attach portion of at least two leads.
Owner:ALLEGRO MICROSYSTEMS INC
Current detecting device
InactiveUS20090278526A1Current/voltage measurementMagnetic sensor packagingHall elementSurface mounting
A current detecting device is provided having a plurality of Hall elements, a board on which the Hall elements are surface-mounted, and a core which surrounds a pass-through section through which a bus bar, through which a current to be detected flows, is passed and which has, at a part of the core, an opening in which the Hall element is placed, wherein the plurality of Hall elements are placed in series along a direction of a magnetic field line formed in the opening when a current flows through the bus bar. With such a structure, a core size of the current detecting device which uses the Hall element is reduced.
Owner:TOYOTA JIDOSHA KK
Sensor module with mold encapsulation for applying a bias magnetic field
The invention relates to a sensor module with mold encapsulation for applying a bias magnetic field, and also relates to a method of manufacturing the same, which includes providing a substrate comprising a magnetically sensitive sensor element. The sensor element and the substrate are encapsulated with at least one mold material that is configured to apply a bias magnetic field to the sensor element.
Owner:INFINEON TECH AG
Guidance and alignment system and methods for electric vehicle wireless charging systems
Guidance and alignment systems are disclosed for wireless charging systems to assist in aligning the transmitter and receiver inductive power transfer (IPT) couplers. These systems guide positioning and alignment to provide sufficient coupling between the transmitter and receiver IPT couplers. Exemplary systems provide a magnetic field sensor, magnetic field generator, and magnetic vectoring to determine a position of an electric vehicle or a wireless charging base. In a magnetic vectoring system, an alignment system comprising at least three coils (or similar circuits) on a magnetically permeable substrate receives a positioning magnetic field including modulated information signals and processes the received signal to generate an output for determining a position of the positioning magnetic field source relative to the magnetic field sensor position. The alignment system may further comprise a similar structure that generates the positioning magnetic field, that may include modulated information signals, based on input signals.
Owner:WITRICITY CORP
Magnetic signal measurement apparatus
InactiveCN1877354AShorten the lengthReduce deformation effectsMagnetic/electric field screeningMagnetic sensor packagingMagnetic measurementsScreening effect
Owner:HITACHI HIGH-TECH CORP
Method for sealing package
InactiveUS20130047417A1Easy to implementImprove sealingWave amplification devicesSemiconductor/solid-state device detailsEngineeringSolvent
An ampoule is disposed within a package, a metal tube is disposed between the package and a lid, one end of the metal tube protrudes to the outside, and a low melting point glass having a through-hole is disposed between the package and lid in order to connect the package and the lid each other. An end of the metal tube is connected to a pump which controls circulation of a cleaning solvent or coating agent. The pump circulates the cleaning solvent or the coating agent between the inside and the outside of the package. The gap between the package and the lid formed when the metal tube is extracted by and extracting melting the low melting point glass is sealed.
Owner:SEIKO EPSON CORP
Integrated circuit package having a split lead frame
A magnetic field sensor includes a lead frame having a plurality of leads, at least two of which have a connection portion and a die attach portion. A semiconductor die is attached to the die attach portion of the at least two leads. In some embodiments, at least one passive component is attached to the die attach portion of at least two leads.
Owner:ALLEGRO MICROSYSTEMS INC
Magnetic field shaping components for magnetic field measurement systems and methods for making and using
ActiveUS10983177B2Magnetic field offset compensationMagnetic sensor packagingMagnetic fluxCondensed matter physics
A magnetic field measurement system includes at least one magnetometer; and at least one flux concentrator made of a high magnetic permeability material and configured to receive magnetic field signals from a source, to concentrate the magnetic field signals or reorient the magnetic field signals in a preselected direction, and to direct the concentrated or reoriented magnetic field signals toward at least one of the at least one magnetometer. In addition to, or as an alternative to, the flux concentrator, the system can include a passive shield made of the high magnetic permeability material. The system may also include active shielding.
Owner:HI LLC
Mixed current sensor and method for fitting said sensor
ActiveUS20130314083A1Industrialization is simplePrinted circuit assemblingTransformersMagnetic currentMeasurement device
The invention relates to a mixed current sensor comprising in a case:a magnetic current sensor;a current measuring device comprising a Rogowski coil arranged in such a way that a primary circuit of the magnetic sensor corresponds to the primary circuit of said current measuring device,electronic means for performing acquisition and measurement of the electric current.Said sensor comprises a linking cassette comprisingfirst fixing means arranged to position and secure said cassette by clip-fastening onto the measuring device;second fixing means arranged to position and secure said cassette and the measuring device by clip-fastening onto the case.
Owner:SCHNEIDER ELECTRIC IND SAS
Rotational angle measurement apparatus, control apparatus, and rotation-machine system
ActiveUS20140125267A1Improve accuracyHybrid vehiclesAC motor controlElectrical conductorRotation velocity
Rotational angle measurement apparatus measuring magnetic-field angle or rotational angle with sufficient accuracy wherein a non-magnetic conductor is arranged in the vicinity of the magnetic flux generator or the magnetic sensor, even when the magnetic flux generator rotates at high speed. The rotational angle measurement apparatus is configured with a magnetic sensor 70 which responds to a magnetic-field angle and a detection unit 302 which inputs an output of the magnetic sensor. The rotational angle measurement apparatus is employed with a rotatable body 121 provided with a magnetic flux generator 202. The output of the magnetic sensor is a raw-angle signal set 155 corresponding to the magnetic-field angle. The detection unit outputs a corrected angle after a non-magnetic conductor in the vicinity of the magnetic sensor is corrected, using a correction value outputted by a correction function with rotational velocity of the rotatable body as an argument.
Owner:HITACHI ASTEMO LTD
Design and Apparatus of a Magnetic Resonance Multiphase Flow Meter
An apparatus and method for estimating a parameter of a fluid flowing in a tubular is disclosed. A source of a primary magnetic field is coupled to the tubular and is configured to induce the primary magnetic field in the fluid to align nuclei of the fluid in the tubular along the primary magnetic field. A transmitter transmits an excitation signal into the fluid. A receiver detects a signal from the aligned nuclei responsive to the excitation signal. A processor estimates the parameter of the fluid from the detected signal. The source of the primary magnetic field is removable from the tubular. A coil may induce a secondary magnetic field to either enhance the strength of the primary magnetic field in the tubular or substantially cancel the primary magnetic field in the tubular, for example, to reduce particle build-up in the tubular.
Owner:BAKER HUGHES INC
Magnetic sensor integrated in a chip for detecting magnetic fields perpendicular to the chip and manufacturing process thereof
ActiveUS20140217533A1Magnetic field measurement using flux-gate principleSolid-state devicesSemiconductor chipPhysics
An integrated magnetic sensor formed by a semiconductor chip having a surface and accommodating a magnetic via and a sensing coil. The magnetic via is formed by a cylindrical layer of ferromagnetic material that extends perpendicular to the surface of the first chip and has in cross-section an annular shape of a circular or elliptical or curvilinear type. The sensing coil surrounds the magnetic via at a distance and is connected to an electronic circuit.
Owner:STMICROELECTRONICS INT NV
Magnetic field probe, magnetic field measurement system and magnetic field measurement method
ActiveUS20150160309A1Improve spatial resolutionHigh sensitivityMagnetic sensor packagingSingle device manufacturingCondensed matter physicsDevice under test
A magnetic field probe, a magnetic field measurement system, and a magnetic field measurement method are provided. The magnetic field probe includes a probe head. The probe head includes a first and second inner metal layer. The first inner metal layer includes a first sensing part and a first connecting part coupled thereto. The first sensing part is configured for detecting a magnetic field signal of a device under test to form a first magnetic field distribution signal. The second inner metal layer includes a second sensing part and a second connecting part coupled thereto. The second sensing part is configured for detecting the magnetic field signal of the device under test to form a second magnetic field distribution signal. A distance between the first sensing part and the device under test is smaller than that between the second sensing part and the device under test.
Owner:NAT TAIWAN UNIV
Sensor device
ActiveUS20150198678A1Cost-effectiveHigh failure safetyMagnetic sensor packagingMagnetic field measurement using galvano-magnetic devicesElectricityElectrical conductor
A sensor device having a first housing with a first semiconductor body and a plurality of metallic terminal contacts for electrical contacting of a first sensor, and a second housing with a second semiconductor body with a plurality of metallic terminal contacts for electrical contacting of a second sensor. A section of the plurality of terminal contacts penetrates the second housing on the face side and the second semiconductor body is arranged with a back surface on a front side of the second metal substrate. The two housings form a module, whereby the two housings are connected form-fittingly to one another in the shape of a stack by a fixing device in a way in which the bottom side of the first housing is joined to the bottom side of the second housing and the plurality of terminal contacts of the two housings point in the same direction.
Owner:TDK MICRONAS GMBH
Guidance and alignment system and methods for electric vehicle wireless charging systems
Guidance and alignment systems are disclosed for wireless charging systems to assist in aligning the transmitter and receiver inductive power transfer (IPT) couplers. These systems guide positioning and alignment to provide sufficient coupling between the transmitter and receiver IPT couplers. Exemplary systems provide a magnetic field sensor, magnetic field generator, and magnetic vectoring to determine a position of an electric vehicle or a wireless charging base. In a magnetic vectoring system, an alignment system comprising at least three coils (or similar circuits) on a magnetically permeable substrate receives a positioning magnetic field including modulated information signals and processes the received signal to generate an output for determining a position of the positioning magnetic field source relative to the magnetic field sensor position. The alignment system may further comprise a similar structure that generates the positioning magnetic field, that may include modulated information signals, based on input signals.
Owner:WITRICITY CORP
Rotation detector,wheel bearing equipped therewith and process for manufacturing the same
InactiveUS20100040315A1Improve waterproof performanceIncreased durabilityRolling contact bearingsBearing assemblyRubber materialBiomedical engineering
A sensor assembly (3) is sandwiched together with a rubber material (11) mixed with a vulcanizing agent in a mold assembly (2) including an upper mold (9) and a lower mold (10). The upper and lower molds (9, 10), while completely sandwiching the sensor assembly (3), are heated for a predetermined length of time, and a pressure is then applied to the sensor assembly (3) to complete a compressive molding.
Owner:NTN CORP
Sensing device and related operating methods
ActiveUS20130335065A1Magnetic sensor packagingMagnetic measurement environmental aspectsControl systemEngineering
Apparatus, systems, and methods are provided for sensing devices. An exemplary sensing device includes a sensing arrangement on a substrate to sense a first property, a heating arrangement, and a control system coupled to the first sensing arrangement and the heating arrangement to activate the heating arrangement to heat the first sensing arrangement and deactivate the heating arrangement while obtaining one or more measurement values for the first property from the first sensing arrangement.
Owner:VLSI TECH LLC
Integrated head device of SERF atom magnetometer
InactiveCN110646752ARealize the assemblyReduce volumeMagnetic sensor packagingMagnetic field measurement using magneto-optic devicesMiniaturizationIntegrated design
The invention discloses an integrated head device of an SERF atom magnetometer. For the optical excitation detection and high-temperature heating requirements required by a gas chamber of a head of the SERF atom magnetometer, integrated design is carried out on key components, such as an excitation component, a detection component, a heating component and a heat insulation component; excitation light and detection light enter in parallel through an adjustable mirror structure to greatly reduce the volume of the head; and components around an alkali metal gas chamber are fixed by using a tightfit structure, so that the volume of the head of the SERF atom magnetometer is reduced, the debugging efficiency of an excitation device and a detection device is improved, and meanwhile, heat conduction of a heating device and an external environment is reduced. The head device with high reliability and high stability is provided for miniaturization of an SERF atom magnetometer array and measurement study of SERF magnetic fields.
Owner:ZHEJIANG LAB
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