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7626384 |
Magneto-resistive sensor with test mode activation
According to an example embodiment, there is a magneto-resistive (MR) sensor having an operation mode and a test mode. The MR sensors comprise a first plurality of first MR elements and a second...
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7616089 |
Compensation of field effect on polycrystalline resistors
A resistive circuit includes a first terminal and a second terminal and polycrystalline first and second resistive segments coupled between the first and second terminals. A third terminal A is...
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7595711 |
Switch for vehicles
Provided is a switch for vehicles, which includes an intermittent driving device connected to a control device which opens and closes a switching device based on the magnitude of the magnetism of a...
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7589612 |
Current sensor
A current sensor that is compact can detect with high sensitivity and high accuracy a magnetic field generated by a current. The current sensor has a thin film coil including turn portions...
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7589939 |
Magnetic sensor using giant magnetoresistive elements and method for manufacturing the same
A magnetic sensor includes a single substrate, a conventional GMR element formed of a spin-valve film including a single-layer-pinned fixed magnetization layer, and a SAF element formed of a...
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7547480 |
Magnetic tunnel junction pressure sensors and methods
An integrated circuit device is provided which comprises a substrate, a conductive line configured to experience a pressure, and a magnetic tunnel junction (“MTJ”) core formed between the...
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7541903 |
Switch for vehicles
Provided is a switch for vehicles, including a first switching device which performs the electrical connection/disconnection between a battery and a stop lamp and a second switching device...
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7428128 |
High read output, high sensitivity magnetic sensing element
A magnetic sensing element has pinned magnetic layers disposed on the two sides of a free magnetic layer in the track width direction with nonmagnetic conductive layers therebetween, and an...
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7426098 |
Magnetoresistive element having three-layer buffer layer, magnetic head, magnetic reproducing apparatus, and magnetic memory
A magnetoresistive element includes a magnetoresistive film having a magnetization pinned layer whose magnetization is substantially pinned to one direction, a nonmagnetic intermediate layer, and a...
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7417442 |
Method and apparatus for testing tunnel magnetoresistive effect element, manufacturing method of tunnel magnetoresistive effect element and tunnel magnetoresistive effect element
A method for testing a TMR element includes a step of measuring a plurality of resistances of the TMR element by feeding a plurality of sense currents with different current values each other...
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7414397 |
Angle switch device with magnetoresistive effect element
An angle switch device includes at least one MR element with a pinned layer and a free layer, and a magnet section. A relative angle between the magnet section and a lamination plane of the at...
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7405908 |
Magnetic head with improved free magnetic layer biasing for thinner CPP sensor stack
In a CPP magnetic head a free magnetic layer and a magnetic biasing layer are disposed within a central layer stack. To pin the magnetization of the bias layer, an antiferromagnetic (AFM) layer is...
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7358846 |
Magnetic spin valve with a magnetoelectric element
The present invention provides systems and method utilizing magnetoelectric materials such as Cr 2 O 3 to construct tunneling magnetoresistence and/or giant magnetoresistence structures for memory...
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7355822 |
Superparamagnetic field sensing device
A ferromagnetic thin-film based magnetic field sensor having an electrically insulative intermediate layer with two major surfaces on opposite sides thereof with an initial film of an anisotropic...
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7349186 |
Magnetic read head
A TMR head capable of reconciling high output with high band width is implemented. To that end, two multilayered films each comprised of an insulating layer and a ferromagnetic layer are formed at...
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7336064 |
Apparatus for current measurement
The apparatus for measurement of a current which is flowing in an axially elongated electrical conductor at a first electrical potential. The apparatus contains at least one associated sensor...
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7330339 |
Structure providing enhanced self-pinning for CPP GMR and tunnel valve heads
A magnetic head having improved self-pinning. The head includes a sensor having an antiparallel (AP) pinned layer structure, where the AP pinned layer structure includes at least two pinned layers...
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7292415 |
Ferromagnetic layered material having reliable uniaxial anisotropy
A magnetoresistive film includes a pinned ferromagnetic layer, a free ferromagnetic layer, an intermediate layer interposed between the pinned and free ferromagnetic layers, and a pinning layer...
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7280029 |
Laminated ferrimagnetic thin film, and magneto-resistive effect element and ferromagnetic tunnel element using this thin film
A laminated ferrimagnetic thin film consists of two ferromagnetic layers and a non-magnetic intermediate layer sandwiched therebetween. The respective ferromagnetic layers are magnetically coupled...
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7271587 |
High resolution and low power magnetometer using magnetoresistive sensors
A magnetometer is disclosed that enables high resolution magnetometry using magnetoresistive sensors that consume less power. The magnetometer exploits the ability of the sensor to alter or...
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7218485 |
GMR element having fixed magnetic layer provided on side surface of free magnetic layer
A free magnetic layer contains free magnetic material layers and an intermediate layer interposed therebetween. A fixed magnetic layer contains fixed magnetic material layers and a non-magnetic...
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7211199 |
Magnetically-and electrically-induced variable resistance materials and method for preparing same
Provided are new compositions of ruthenates in the pervoskite and layered pervoskite family, wherein the ruthenate compositions exhibit large magnetoresistance (MR) and electric-pulse-induced...
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7203036 |
Planar extraordinary magnetoresistance sensor
An extraordinary magnetoresistance (EMR) sensor has a planar shunt and planar leads formed on top of the sensor and extending downward into the semiconductor active region, resulting. Electrically...
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7202771 |
Magnetic field sensing device
Two sensor units are formed from magnetoresistive material. Elements of the first sensor unit have a total anisotropy field in a first direction. Elements of the second sensor unit have a total...
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7183893 |
TMR sensor with oxidized alloy barrier layer and method for forming the same
A tunneling magnetoresistive stack includes a first ferromagnetic layer, a tunnel barrier layer on the first ferromagnetic layer, and a second ferromagnetic layer on the tunnel barrier layer. The...
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7176679 |
Sensor structure and magnetic field sensor
A method and an apparatus of a magnetic field sensor structure are disclosed. The magnetic field sensor structure is formed by a bridge of four magnetoresistors ( 1–4 ), wherein each...
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7119539 |
Arrangement for determining the position of a motion sensor element
An arrangement for determining the position of a motion sensor element influencing the formation of a magnetic field, impressed on the arrangement, periodically along its motion co-ordinate,...
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7113069 |
Aligned particle based sensor elements
The present invention relates to a sensor array for detecting an analyte in a fluid, comprising first and second sensors formed by chemically sensitive resitors, wherein the first sensor comprises...
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7064649 |
Magneto-resistive layer arrangement and gradiometer with said layer arrangement
A magnetoresistive layer system including a layer sequence including at least two magnetic layers, a non-magnetic, electrically conductive intermediate layer being arranged between them; the...
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7046117 |
Integrated magnetic field strap for signal isolator
An integrated signal isolator is provided to isolate first and second circuits. First, second, third, and fourth magnetoresistors of the isolator are coupled together so as to form a Wheatstone...
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7026910 |
GMR module
So that the parts and connections of a component, particularly a Giant Magneto-Resistor, may withstand external forces, a meander group ( 13 M, 14 M) with at least one meander element ( 13.1, . ....
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7018725 |
Magneto-resistance effect element magneto-resistance effect memory cell, MRAM, and method for performing information write to or read from the magneto-resistance effect memory cell
A magneto-resistive effect element includes a first ferromagnetic film; a second ferromagnetic film; and a first nonmagnetic film interposed between the first ferromagnetic film and the second...
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7005958 |
Dual axis magnetic sensor
A two-axis magnetic field sensor includes a substrate, a first sensor having at least one magnetoresistive element formed of GMR material on the substrate has a free layer having an easy axis of...
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6998839 |
Magnetoresistive sensor having a strip-shaped conductor and a screening strip
A magnetoresistive sensor has at least one strip-shaped conductor that is formed from a magnetoresistive material and that is designed to determine its electrical resistance, which can be...
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6985066 |
Controlled electron mobility galvanomagnetic devices
A controlled electron mobility galvanomagnetic device comprising a layer of indium antimonide alloyed with a Group 13 isoelectronic element antimonide and doped n-type, the layer disposed on an...
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6949927 |
Magnetoresistive magnetic field sensors and motor control devices using same
A magnetic field measuring device useful for measuring a magnetic field associated with an electric current, including a bus section connectable into the path of the electric current, a first...
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6911895 |
Electrical module assembly with an explosion-proof switch
An electrical module assembly includes an electrical module located in the module housing ( 1 ) and having an explosion-proof contactless switch ( 4 ) including a movable switching element ( 7 )...
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6861940 |
Magnetoresistive element
A magnetoresistive element of the present invention includes a multilayer structure that includes a non-magnetic layer ( 3 ) and a pair of ferromagnetic layers ( 1, 2 ) stacked on both sides of the...
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6828897 |
Methods and compositions for optimizing interfacial properties of magnetoresistive sensors
A method for maximizing the interfacial properties of magnetoresistive sensors, such as spin valve and GMR sensors used in storage devices, comprises selecting the materials for ferromagnetic...
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6809514 |
Magnetic field sensor including carrier excluding for reducing an instrinsic contribution to carrier concentration in the active region
The invention provides a Hall effect magnetic field sensor ( 10, 50 ) including carrier excluding or extracting means ( 36, 66 ) for reducing an intrinsic contribution to carrier concentration in...
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6756782 |
Magnetic field measuring sensor having a shunt resistor and method of regulating the sensor
A sensor for measuring a magnetic field includes a substrate, four magnetic elements arranged in a bridge configuration on the substrate, a first bridge portion. A first element and a second...
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6734671 |
Magnetic sensor and manufacturing method therefor
Magnetoresistive devices are formed on the insulating surface of a substrate made of silicon. The devices are connected in series through an insulating film using a wiring layer formed on the...
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6717403 |
Method and system for improving the efficiency of the set and offset straps on a magnetic sensor
A method for manufacturing a magnetic field sensor, including the step of providing a keeper material proximate to at least a portion of a magnetic field sensing structure. The magnetic field...
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6714374 |
Magnetoresistive sensor, magnetoresistive head, and magnetic recording/reproducing apparatus
A magnetoresistive sensor includes a magnetoresistive element and equipment which generates a magnetic field in the magnetoresistive element thereby inducing a biasing magnetic field in the...
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6710985 |
Magnetoresistive film, magnetoresistive head, and information regeneration apparatus
There is provided a magnetoresistive film in which an interlayer coupling field H in is minimized and a large regeneration output is produced. A multilayered film includes an underlayer 1 , an...
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6708126 |
Method and system for measuring current
A current sensing system including a carrier strip, the carrier strip disposed so as to be associated with a current carrying conductor, wherein when an electrical current flows through the...
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6700371 |
Three dimensional conductive strap for a magnetorestrictive sensor
A magnetoresistive sensor has a semiconductor substrate and an insulator over the substrate. A magnetoresistive film is embedded in the insulator responsive material, and a conductive strap is...
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6690163 |
Magnetic sensor
To provide a spin-valve magnetic head comprising a layered film having preferable magnetic properties in which an interface control film to reduce magnetostriction to almost zero is inserted. By...
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6667526 |
Tunneling magnetoresistive storage unit
A tunneling magnetoresistive storage unit (TMR unit) includes a hollow cylinder-shaped free-spin element having one open end, a columnlike fixed-spin element formed inside the cylinder-shaped...
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6667682 |
System and method for using magneto-resistive sensors as dual purpose sensors
An integrated dual-purpose sensor is shown. The dual-purpose sensor in one embodiment of the present invention includes a full Wheatstone bridge or a half Wheatstone bridge providing two output...
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