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7450350 |
Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with antiparallel-pinned structure having segregated grains of a ferromagnetic material and additive Cu, Au or Ag
A current-perpendicular-to-the-plane spin-valve (CPP-SV) magnetoresistive sensor has an improved antiparallel (AP) pinned structure, i.e., a structure with first (AP 1 ) and second (AP 2 )...
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7446986 |
Magnetic tunnel junction with in stack biasing layer providing orthogonal exchange coupling
A magnetoresistive sensor having an in stack bias structure. The sensor includes a bias spacer that allows biasing of free layer magnetic moment in a direction orthogonal to the magnetic moment of...
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7446984 |
Magnetic random access memory (MRAM) having increased reference layer anisotropy through ion beam etch of magnetic layers
A Magnetic Random Access Memory (MRAM) cell and array for storing data. The MRAM array includes a memory cell having a magnetic pinned layer, a magnetic free layer and a non-magnetic spacer or...
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7446983 |
Magnetoresistive element, thin-film magnetic head, head gimbal assembly, and magnetic disk drive
An MR element comprises: a nonmagnetic conductive layer having two surfaces facing toward opposite directions; a free layer disposed adjacent to one of the surfaces of the nonmagnetic conductive...
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7446982 |
Pinning structure with trilayer pinned layer
A magnetoresistive sensor having a trilayer structure for improved pinning. The pinned layer is exchange coupled with a IrMnCr AFM layer, and has a three ferromagnetic layer, the center one...
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7443638 |
Magnetoresistive structures and fabrication methods
Disclosed herein is a magnetoresistive structure, for example useful as a spin-valve or GMR stack in a magnetic sensor, and a fabrication method thereof. The magnetoresistive structure uses twisted...
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7443637 |
Giant magnetoresistance sensor with side longitudinal bias stacks and method for forming same
A giant magnetoresistance (GMR) sensor with side longitudinal bias (LB) stacks is proposed for magnetic recording at ultrahigh densities. The GMR sensor extends from a read region into two side...
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7441326 |
Manufacturing method of a magnetic sensor
In a magnetic sensor, a lower terminal layer, a magnetosensitive layer, and a cover film are simultaneously patterned into substantially the same size. The opposing surface of the lower terminal...
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7440239 |
Magneto-resistance effect element and reproducing head
It is possible to obtain sensitivity which can achieve an excellent error rate with a high recording density. There are provided a magnetization free layer which has two opposed main surfaces, one...
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7436638 |
Ferromagnetic pinning structure including a first section antiferromagnetically coupled to a pinned layer and a second section elongated relative to the first section in a stripe height direction
A CPP magnetic sensor is disclosed with a ferromagnetic layer that extends in a first direction a first distance; a nonferromagnetic spacer layer that adjoins the ferromagnetic layer and extends in...
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7436637 |
Magnetoresistive sensor having an improved pinning structure
A magnetoresistive sensor having a hard magnetic layer extending from the stripe height of the pinned layer to assist in pinning the pinned layer. The pinned layer extends beyond the stripe height...
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7433162 |
Magnetoresistive sensor with antiferromagnetic exchange-coupled structure formed by use of chemical-ordering enhancement layer
An antiferromagnetically exchange-coupled structure for use in a magnetic device, such as a magnetoresistive sensor, includes an enhancement layer formed of a chemically-ordered...
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7433161 |
Spin-valve element having fixed layer containing nano-oxide layer
A nonmagnetic material-noncontact layer forming a fixed magnetic layer is formed using CoFe, a nonmagnetic material-contact layer is formed using Co, and an NOL (Nano-Oxide Layer) is provided...
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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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7428127 |
CPP magnetoresistive effect element and magnetic storage device having a CPP magnetoresistive effect element
A CPP magnetoresistive effect element includes a free magnetization layer, a fixed magnetization layer, and a plurality of conductive non-magnetic intermediate layers formed between the free...
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7426097 |
Giant magnetoresistive device with buffer-oxide layer between seed and ferromagnetic layers to provide smooth interfaces
An enhanced giant magnetoresistive device, and a method of manufacturing the same. The enhanced giant magnetoresistive (GMR) device includes a substrate over which is formed a seed layer. A...
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7423849 |
Magnetoresistive (MR) elements having pinned layers with canted magnetic moments
Magnetoresistive (MR) elements are disclosed that include pinned layers having canted magnetic moments. An MR element of the invention includes a first pinning layer, a first pinned layer, a first...
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7423848 |
Process and structure to fabricate CPP spin valve heads for ultra-high recording density
A CPP-GMR spin value sensor structure with an improved MR ratio and increased resistance is disclosed. All layers except certain pinned layers, copper spacers, and a Ta capping layer are oxygen...
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7420788 |
GMR and MR enhancing seedlayers for self pinned spin valves
A magnetic head includes a seed layer structure comprising Ta and NiFeCr seed layers; an antiparallel (AP) pinned layer structure formed above the NiFeCr seed layer; a free layer positioned above...
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7418777 |
Method on manufacturing spin valve film
A method of manufacturing a spin valve film, produces a large read out signal. After a completion of a film making process for forming a previous film of two films to be formed successively, but...
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7417833 |
Magnetic recording and reproducing apparatus having element for correcting misaligned magnetization direction
The invention provides a magnetic recording and reproducing apparatus having magnetic field applying unit applying a magnetic field to a magnetoresistive element to correct a misaligned...
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7408747 |
Enhanced anti-parallel-pinned sensor using thin ruthenium spacer and high magnetic field annealing
An anti-parallel pinned sensor is provided with a spacer that increases the anti-parallel coupling strength of the sensor. The anti-parallel pinned sensor is a GMR or TMR sensor having a pure...
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7397639 |
Magnetic detecting element provided with free layer having layered-ferri configuration
A magnetic detecting element, which can suppress change in output asymmetry even if the magnetization direction of a pinned magnetic layer is changed 180°, is provided. The magnetic-film-thickness...
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7394086 |
Magnetic sensor and manufacturing method therefor
A magnetic sensor comprises a substrate, magnetoresistive element of a spin-valve type, a bias magnetic layer (or a permanent magnet film), and a protective film, wherein the bias magnetic layer is...
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