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7377025 |
Method of forming an improved AP1 layer for a TMR device
A TMR read head with improved voltage breakdown is formed by laying down the AP1 layer as two or more layers. Each AP1 sub-layer is exposed to a low energy plasma for a short time before the next...
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7158356 |
Elimination of electric-pop noise in a MR device
The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer...
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7009822 |
AMR Sensor with a soft adjacent layer having high magnetization, high resistivity, low intrinsic anisotropy and near zero magnetostriction
A high magnetization, high resistivity, low corrosion and near zero magnetostriction soft adjacent layer (SAL) is provided for a magnetoresistive (MR) sensor of a read head. The MR sensor may...
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6842312 |
Dual stripe read head with magnetic support structures which provide a uniform magnetic field for stabilization during manufacture
A method for stabilizing magnetic domains in dual stripe magnetic read heads is provided. This method first comprises providing a plurality of coupled magneto-resistive read elements in a spaced...
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6663986 |
Magneto-resistive stripe element having a thin film conductor covered by a conductive capping layer
A magneto-resistive (MR) stripe element includes a magnetically active body portion and a tri-layer electrical conductor structure arranged proximate the magnetically active body portion. The...
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6583971 |
Elimination of electric-pop noise in MR/GMR device
The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second...
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6475649 |
Magnetic head
The method of making the magnetic resistance element comprises the steps of: forming a first magnetizable layer, a non-magnetizable layer and a second magnetizable layer, in this order, on an...
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6452765 |
CoNbTi as high resistivity SAL material for high-density MR
A soft adjacent layer made from a ternary alloy material and a MR sensor utilizing this soft adjacent layer. The ternary alloy material CoXY includes cobalt (Co), a first transition metal X and a...
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6373667 |
Single stripe magnetoresistive (MR) head
A method for fabricating a soft adjacent layer (SAL) magnetoresistive (MR) sensor element and several soft adjacent layer (SAL) magnetoresistive (MR) sensor elements which may be fabricated...
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6295718 |
Method for fabricating a non-parallel magnetically biased multiple magnetoresistive (MR) layer magnetoresistive (MR) sensor element
Within a method for forming a magnetoresistive (MR) sensor element there is first provided a substrate. There is then formed over the substrate a first magnetoresistive (MR) layer having formed...
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6229678 |
Magnetoresistive read sensor
An improved magnetoresistive read sensor (100) and a method of fabricating magnetoresistive read sensor (100) that eliminates film removal is disclosed. The magnetoresistive sensor (100) is formed...
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6154350 |
Soft adjacent layer-biased magnetoresistive head and method
An MR head is biased to a soft adjacent layer so that deflection angles at any point around the MR element are made uniform. The SAL-biased MR head includes a SAL divided into a plurality of layers...
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6137662 |
Magnetoresistive sensor with pinned SAL
A magnetoresistive sensor including a magnetoresistive (MR) sensing element, a nonmagnetic layer ("spacer") contacting the magnetoresistive sensing element; a first antiferromagnetic (AFM) layer...
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6091589 |
Soft adjacent layer (SAL) magnetoresistive (MR) sensor element with electrically insulated soft adjacent layer (SAL)
Within a soft adjacent layer (SAL) magnetoresistive (MR) sensor element which may be employed within a magnetic head there is first employed a substrate. Formed over the substrate is a soft...
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6088196 |
Magnetoresistive head and manufacturing method therefor
A magnetoresistive head comprising a magnetoresistive film having electric resistance varying with a magnetic field, a pair of electrodes for causing a current to flow into the magnetoresistive...
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6087026 |
Magnetoresistive head and magnetic read/write device
A MR head employs a biasing soft magnetic film of a FeXN-based alloy which undergoes no change in the direction of its axis of easy magnetization even when subject to heat treatment. The MR head...
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5966272 |
Magnetoresistive read head having an exchange layer
A magnetoresistive (MR) read transducer having an exchange layer adjacent a soft adjacent layer (SAL). The exchange layer generates a transverse bias field which saturates the SAL with little or no...
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5959809 |
Magnetoresistive head and method of manufacturing the same and magnetic recording apparatus
A magnetoresistive head of the present invention comprises a non-magnetic layer formed on a soft magnetic layer used for applying a linearizing bias, a ferro-magnetic magnetoresistance layer formed...
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5923505 |
Magnetoresistive sensor having a pinned soft magnetic layer
A magnetoresistive (MR) read sensor fabricated on a substrate comprises an MR layer of magnetoresistive material, a soft adjacent layer (SAL) of soft magnetic material, and a manganese-based...
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5870261 |
Magnetoresistive head
A magnetoresistive head includes a magnetoresistive element and a for-bias soft magnetic film attached to the magnetoresistive element via a spacer. The for-bias soft magnetic film has an axis of...
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5828528 |
MR sensors with selected resistances for the sensing and biasing layers to enhance reading capabilities
A magnetoresistive sensor for detecting stored information from a magnetic medium and for providing an output voltage to auxiliary circuitry is disclosed. The magnetoresistive sensor includes a...
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5800935 |
Magnetoresistive head
In a magnetoresistive head, a magnetoresistive layer 6 detects a magnetic field signal from a magnetic recording medium on the basis of resistance changes, a soft magnetic bias layer 4 applies a...
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5784226 |
Magnetoresistive head with optimized soft magnetic bias layer
In a magnetoresistive head, a magnetoresistive layer (6) detects a magnetic field signal from a magnetic recording medium on the basis of resistance changes, a soft magnetic bias layer (4) applies...
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5774309 |
Magnetic transducer and thin film magnetic head
A central active area includes a MR film, a nonmagnetic spacer film and a soft magnetic film with the MR film constituting the lowermost layer on top of a supporting body, the nonmagnetic spacer...
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5731936 |
Magnetoresistive (MR) sensor with coefficient enhancing that promotes thermal stability
An MR sensor with an improved MR coefficient and improved thermal stability is provided by employing one or more chromium based spacer layers which are interfacially adjacent a Permalloy (NiFe)...
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5715120 |
Magnetoresistance sensor with enhanced magnetoresistive effect
A magnetoresistive (MR) sensor having end regions separated from each other by a central region. Hard bias layers disposed in the end regions longitudinally bias an MR layer which is formed in the...
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5694275 |
Magnetoresistive magnetic head
In a magnetoresistive magnetic head having a laminate composed of a magnetoresistive (MR) layer showing the magnetoresistive effect, a SHUNT layer as a non-magnetic layer and a soft adjacent layer...
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5673162 |
Magnetoresistive head with soft adjacent layer comprising amorphous magnetic material
A magnetoresistive head having a soft magnetic layer which comprises a Co--Fe--Ta amorphous magnetic material and applies a transverse bias magnetic field to a magnetoresistive layer. The amorphous...
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5621593 |
Magnetoresistive head and method of fabricating the same
The present invention relates a magnetoresistive head of an MR device. The magnetoresistive head comprises a nonmagnetic metal layer formed on an insulating layer, and a magnetic layer formed on...
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5556718 |
Magnetoresistive head
In a magnetoresistive effect head comprising a ferromagnetic magnetoresistive effect layer, an inverse ferromagnetic layer (3) for generating a longitudinal bias magnetic field by an exchange force...
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5532892 |
Soft adjacent layer biased magnetoresistive device incorporating a natural flux closure design utilizing coplanar permanent magnet thin film stabilization
A soft adjacent layer biased magnetoresistive ("MR") device, and a method for producing the same, which incorporates a natural flux closure design utilizing coplanar thin film permanent magnets to...
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5521005 |
Magnetoresistive head
In a magnetic head whose recording and reproduction sections are separated, the magnetoresistive element constituting the reproduction head has a structure comprising a soft magnetic film, a spacer...
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5258884 |
Magnetoresistive read transducer containing a titanium and tungsten alloy spacer layer
A magnetoresistive (MR) read transducer has a thin film MR layer of ferromagnetic material and a nonmagnetic spacer layer in contact with the MR layer. The thin film spacer layer comprises an alloy...
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5155642 |
Anisotropy configuration for longitudinally constrained magnetoresistive transducers
A magnetoresistive (MR) read transducer comprising an MR layer having longitudinally magnetized end regions separated by a central active region and a soft magnetic biasing layer parallel to but...
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5001586 |
Very low noise magnetoresistive sensor for high density media applications
A soft film biased magnetoresistive sensor (10) is fabricated to have reduced Barkhausen noise. The magnetic ratio of the film layers (14 and 18) is controlled to be in the range of 1.7 to 1.95 and...
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4940511 |
Method for making a magnetoresistive read transducer
A magnetoresistive (MR) read transducer comprising a thin film MR layer formed of ferromagnetic material and a nonmagnetic thin film spacer layer in contact with the MR layer. The spacer layer...
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4928188 |
Magnetoresistive element sandwiched between a sal ferrite substrateand a cover containing an easy axis biasing magnet
A magnetoresistive head is fabricated on a ferrite substrate which is both the mechanical support for the head assembly and a soft adjacent layer for biasing the magnetoresistive element of the...
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4894741 |
Magneto-resistive head with improved sensitivity
To provide optimized performance in a magneto-resistive head having a soft adjacent magnetic biasing layer separated from a current-carrying magneto-resistive sense film by an extremely thin...
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4879619 |
Magnetoresistive read transducer
A magnetoresistive (MR) read transducer comprising a thin film MR layer formed of ferromagnetic material and a nonmagnetic thin film spacer layer in contact with the MR layer. The spacer layer...
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4833560 |
Self-biased magnetoresistive reproduce head
In a magnetoresistive reproduce head which is self-biased by a saturated soft adjacent layer magnetically coupled to the magnetoresistive element, the induced anisotropy fields of the...
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4816948 |
Magneto-resistive head
Magneto-resistive head comprising a magneto-resistive film, and a soft magnetic film disposed at one side of said magneto-resistive film, which soft magnetic film is magnetized by electric current...
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4814919 |
Soft-film-bias type magnetoresitive device
A soft-film-bias type magnetoresistive device is disclosed in which a high-permeability magnetic film, an insulating film and a permalloy film are formed on a substrate in this order, and first,...
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3864751 |
Induced bias magnetoresistive read transducer
A magnetoresistive (MR) read transducer has one MR element and a soft magnetic bias film that is electrically insulated from the MR element. When current is applied to the MR element, the bias film...
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