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US20150077882 |
READER STRUCTURE
Implementations described and claimed herein provide a synthetic antiferromagnetic (SAF) layer with canted pinning, wherein a down-track direction facing surface of the SAF layer has edges that... |
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US20140334040 |
MAGNETIC SHIELD BASE LAMINATION
A magnetic element may generally be configured as a read head with at least a magnetic stack that contacts at least one magnetic shield. The magnetic shield can be positioned on top of a base... |
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US20110116195 |
MAGNETIC WRITE HEAD DESIGN USING PERMANENT MAGNETS AND EXCHANGE SPRING MECHANISM
A magnetic recording head includes a write pole and a first permanent magnet. The write pole has a write pole tip, a leading edge, a trailing edge, a first side and a second side. The first... |
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US20090166184 |
Perpendicular magnetic medium with shields between tracks
A track shield structure is disclosed that enables higher track density to be achieved in a patterned track medium without increasing adjacent track erasure and side reading. This is accomplished... |
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US20090002896 |
Magnetic writer for patterned media with increased write field
A magnetic writer writes to a magnetic medium including a plurality of tracks that each includes a plurality of isolated magnetic elements for storage of information. The magnetic writer includes... |
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US20120050921 |
DAMPED MAGNETIC HEAD
A magnetic head comprises a main pole, a return pole and a magnetic damper. The main pole is configured to emit flux and the return pole is configured to return the flux to the main pole. The... |
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US20080273277 |
Composite shield structure of PMR writer for high track density
Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain... |
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US20080273276 |
Optimized write pole flare angle for side shield or semi side shield PMR writer application
Improved writability and a reduction in adjacent track erasure are achieved in a PMR writer with a large flare angle of 45 and 90 degrees in the main write pole and a full side shield or partial... |
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US20120281320 |
Magnetoresistive Shield with Stabilizing feature
A magnetoresistive (MR) reader is adjacent to at least one shield that extends from an air bearing surface (ABS) a first distance. The shield has a stabilizing feature that is contactingly... |
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US20090251828 |
Vertically stacked DFH heater design for protrusion shape control
A vertically stacked DFH design in a read/write head is disclosed that allows independent control of write gap protrusion and read gap protrusion. A first heater is formed in an insulation layer... |
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US20100321835 |
SELF-ALIGNED, TRAILING EDGE PARTIAL SIDE SHIELD AND METHOD OF MAKING
A magnetic writer includes a write pole, a first partial shield and a second partial shield. The write pole has a leading edge, a trailing edge, a first side and a second side. The first partial... |
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US20100046120 |
WRITE HEAD WITH INTEGRATED COIL AND SHIELD STRUCTURE
Disk drive systems and associated methods of fabrication are disclosed for a write head having an integrated coil and shield structure. The write head includes a write pole having a pole tip... |
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US20110267720 |
READER SHIELD WITH TILTED MAGNETIZATION
An apparatus that includes a first read shield and a second read shield and a reader stack between the first and second read shields. The first and second read shields each include a tilted... |
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US20100027167 |
CURRENT PERPENDICULAR TO PLANE MAGNETORESISTANCE READ HEAD DESIGN USING A CURRENT CONFINEMENT STRUCTURE PROXIMAL TO AN AIR BEARING SURFACE
A current to perpendicular to plane (CPP) magnetoresistance (MR) read head using current confinement proximal to an air bearing surface (ABS) is disclosed. A CPP MR read head includes a first... |
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US20090284874 |
SELF-ALIGNED PERPENDICULAR WRITER POLE AND FRONT SHIELD
A write pole structure includes a write pole having a tip region. A shield structure is spaced from the write pole by a gap at the tip region. The shield structure includes a front shield and a... |
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US20150243305 |
READER WITH DECOUPLED MAGNETIC SEED LAYER
An apparatus comprising a base shield, a sensor stack, and a base seed layer separating the base shield from the sensor stack. The base seed layer has a base coupled seed section that is coupled... |
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US20080007875 |
Read head for magnetic storage system
A read head for a rotating magnetic storage system including concentric tracks is disclosed. The read head comprises a magnetoresistive (MR) sensor that reads information from a read track of the... |
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US20150062756 |
READER STRUCTURE
An apparatus disclosed herein comprises a reader structure having a sensor stack and a bottom shield having a first end and a second end on opposite sides of the bottom shield in a cross-track... |
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US20140334042 |
READER WITH DECOUPLED MAGNETIC SEED LAYER
An apparatus comprising a base shield and a sensor stack, wherein the base shield is separated from the sensor stack via a first soft magnetic layer that is magnetically decoupled form the base... |
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US20140254047 |
READER WITH DECOUPLED MAGNETIC SEED LAYER
An apparatus comprising a base shield and a sensor stack, wherein the base shield is separated from the sensor stack via a first soft magnetic layer that is magnetically decoupled form the base... |
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US20140104729 |
Shield Stabilization Configuration with Applied Bias
An apparatus includes a sensor stack, first and second shields positioned on opposite sides of the sensor stack, and a first shield stabilization structure adjacent to the first shield and... |
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US20090296284 |
MAGNETORESISTIVE SENSOR DESIGN FOR SIGNAL NOISE PICKUP REDUCTION FOR USE WITH DEEP GAP ELECTROSTATIC DISCHARGE SHUNT
A magnetic head having an electrostatic shunt structure for preventing damage to the magnetic head during manufacture. A portion of the shunt structure is removed during manufacture, however... |
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US20110007428 |
WRITE POLE WITH A SYNTHESIZED LOW MAGNETIZATION SHIELD
A magnetic writer comprises a surface, a write pole, a trailing shield and a gap. The write pole has a write pole tip proximate the surface. The trailing shield is proximate the surface and space... |
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US20090168257 |
INDEPENDENT SIDE SHIELD AND TOP SHIELD THROAT HEIGHT CONTROL FOR HIGH LINEAR DENSITY WRAP AROUND SHIELD WRITE HEAD
A magnetic write head for perpendicular magnetic recording. The magnetic write head includes a write pole having a pole tip region and a flared region. The write pole also has a trailing,... |
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US20090257153 |
Binary output reader structure (BORS) with high utilization rate
We disclose a magnetic read head, and method for making it, that operates in a binary rather than an analog mode. This greatly boosts signal amplitude for high area density recording as device... |
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US20150002964 |
READER STRUCTURE
An apparatus disclosed herein includes a sensor stack including a first layer and a barrier layer, wherein the barrier layer is in contact with a bottom shield. |
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US20120281319 |
Magnetoresistive Shield
A magnetic shield that is capable of enhancing magnetic reading. In accordance with various embodiments, a magnetic element has a magnetically responsive stack shielded from magnetic flux and... |
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US20110058283 |
Perpendicular recording device having reduced sensitivity to external fields
In a read-write head, the shields can serve as magnetic flux conductors for external fields, so that they direct a certain amount of flux into the recording medium. This problem has been overcome... |
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US20090310262 |
Composite writer shield for improving writer performance
A PMR writer in a read/write head is disclosed wherein an upper shield covering the coil layer is comprised of a magnetic layer optimized for magnetic performance and a second layer used for... |
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US20080316652 |
SIMULTANEOUS POLE-TIP AND SIDE SHIELD FABRICATION AND INTEGRATED ELG
A method for manufacturing a write pole for perpendicular magnetic recording for accurately defining a side shield throat height and write pole flare point. The method includes the formation of a... |
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US20080165452 |
Virtual front shield writer
A magnetic writer includes a first write element and a second write element. The first write element produces a first field when a first current is passed through a first coil. The second write... |
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US20090091862 |
Method to make PMR head with integrated side shield (ISS)
A PMR head comprises a substrate, a magnetic pole formed over the substrate, the pole having a pole tip having a cross-sectional tapered shape wherein the pole tip is surrounded by a write gap... |
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US20090268350 |
PERPENDICULAR WRITE HEAD HAVING A TRAILING SHIELD WITH A SHORT GAP, SHORT THROAT AND HIGH APEX ANGLE FOR IMPROVED LINEAR DENSITY RECORDING
A magnetic write head having a trailing shield configured to optimize both write field strength and field gradient. The write head includes a write pole, a trailing gap layer formed over the... |
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US20120127616 |
TMR READER WITHOUT DLC CAPPING STRUCTURE
Embodiments herein generally relate to TMR readers and methods for their manufacture. The embodiments discussed herein disclose TMR readers that utilize a structure that avoids use of the DLC... |
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US20090174968 |
MAGNETIC SENSING DEVICE WITH REDUCED SHIELD-TO-SHIELD SPACING
A magnetic sensor assembly includes first and second shields each comprised of a magnetic material. The first and second shields define a physical shield-to-shield spacing. A sensor stack is... |
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US20110007427 |
MAGNETORESISTIVE SENSOR WITH SYNTHETIC ANTIFERROMAGNETIC CAP OR SEED LAYERS
A magnetic sensor assembly including first and second shields, and a sensor stack between the first and second shields. The sensor stack includes a seed layer adjacent the first shield, a cap... |
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US20090323229 |
Modified shield shape for perpendicular recording head to reduce sensitivity to external fields
In a read-write head, the shields can serve as magnetic flux conductors for external fields, so that they direct a certain amount of flux into the recording medium. This problem has been overcome... |
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US20060209469 |
Magnetoresistance effect reproduction head
A magnetoresistance effect reproduction head includes a shield part composed of a lower shield and an upper shield and prevents fluctuations in head output caused by the magnetic domain structure... |
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US20140177093 |
MAGNETIC HEAD HAVING A SOFT MAGNETIC LAYER FORMED BEHIND A TUNNELING MAGNETORESISTANCE (TMR) SENSOR IN AN ELEMENT HEIGHT DIRECTION
A magnetic head according to one embodiment includes a read sensor adapted for sensing an external magnetic field; an upper magnetic shield positioned above the read sensor along an air bearing... |
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US20090151151 |
FABRICATING MAGNETIC READ HEADS WITH A REDUCED SCRATCH EXPOSURE REGION
Methods of fabricating magnetic read heads are provided which reduce the width of the scratch exposure region of a read head. During normal fabrication processes, a read head is formed with a... |
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US20150062752 |
MAGNETIC SENSOR WITH RECESSED AFM SHAPE ENHANCED PINNING AND SOFT MAGNETIC BIAS
A magnetic read sensor having an antiferromagnetic located embedded within a magnetic shield of the sensor so that the antiferromagnetic layer can pin the magnetization of the pinned layer without... |
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US20090059439 |
MULTICHANNEL THIN-FILM MAGNETIC HEAD WITH DUMMY SHIELDS
Provided is a multichannel thin-film magnetic head having a plurality of read head elements neighboring with each other, each of which includes shield layers having a desired stable... |
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US20150092303 |
GRADED SIDE SHIELD GAP READER
Embodiments of the present invention generally include magnetoresistive heads, such as read heads, having a sensor structure and side shields disposed adjacent to the sensor structure. The... |
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US20090213502 |
MAGNETO-RESISTANCE EFFECT ELEMENT HAVING STACK WITH DUAL FREE LAYER AND A PLURALITY OF BIAS MAGNETIC LAYERS
A magneto-resistance effect element comprises: a magneto-resistance effect stack including an upper magnetic layer and a lower magnetic layer whose magnetization directions change in accordance... |
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US20150116870 |
SPIN TRANSPORT SENSOR
The implementations disclosed herein provide for a spin transport sensor including a synthetic antiferromagnet (SAF) adjacent a shield element. The SAF extends to an air-bearing surface (ABS) and... |
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US20150116869 |
ASYMMETRIC SENSITIVITY READER
Embodiments described herein generally relate to a magnetic read head wherein read sensitivity distribution is made asymmetric in the off-track direction. The method of making the magnetic head is... |
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US20120063034 |
CURRENT-PERPENDICULAR-TO-THE-PLANE (CPP) MAGNETORESISTIVE (MR) SENSOR WITH IMPROVED INSULATING STRUCTURE
A current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) sensor, like a CPP MR disk drive read head, has an improved insulating structure surrounding the stack of layers making up the... |
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US20120287534 |
Reader sensor, magnetic head, head gimbal assembly and disk drive unit with the same
A reader sensor comprises a first shielding layer, a second shielding layer, a read element formed therebetween, and a pair of permanent magnet layer respectively placed on two sides of the read... |
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US20130163124 |
MAGNETIC READ SENSOR HAVING FLAT SHIELD PROFILE
A magnetic read sensor having a flat shield for improved gap thickness definition and control. The magnetic read head includes a sensor stack and hard bias layer formed at either side of the... |
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US20080232000 |
MAGNETIC WRITE HEAD WITH UPPER RETURN POLE OPTIMIZATION FOR REDUCED TRAILING SHIELD PROTRUSION
A magnetic write head for perpendicular magnetic recording that is resistant to write pole and trailing shield protrusion. The write pole includes a magnetic return pole that is magnetically... |