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8171618 |
Tunable pole trim processes for fabricating trapezoidal perpendicular magnetic recording (PMR) write poles
A method of forming a write pole for a magnetic recording device is provided. The method comprises providing a layer of magnetic material covered with a secondary hard mask layer and a patterned...
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8166631 |
Method for fabricating a magnetic recording transducer having side shields
A method provides a magnetic transducer that includes an underlayer and a nonmagnetic layer on the underlayer. The method includes providing a plurality of trenches in the nonmagnetic layer. A...
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8166632 |
Method for providing a perpendicular magnetic recording (PMR) transducer
A method and system for providing a PMR transducer including an intermediate layer. The method and system include providing a hard mask layer on the intermediate layer. The hard mask layer is for a...
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8161627 |
Method of making a write head lapping guide about aligned to a non-magnetic layer surrounding a write pole
A method in one embodiment includes forming an electric lapping guide layer; forming a write pole; forming a first gap layer over the write pole; masking a portion of the first gap layer for...
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8146236 |
Method for providing a perpendicular magnetic recording (PMR) transducer
A method and system for providing a perpendicular magnetic recording (PMR) transducer from pole layer(s) are disclosed. First and second planarization stop layers are provided on the pole layer(s)....
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8144424 |
Timing-based servo verify head and magnetic media made therewith
A servo head capable of verifying at least one timing based pattern printed on media is provided. The servo head includes a magnetic structure having at least one magnetic element arranged and...
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8141235 |
Method for manufacturing a perpendicular magnetic recording transducers
A method for manufacturing a perpendicular magnetic recording transducer is described. A metallic underlayer, an insulator on the metallic underlayer, and a metal mask on the insulator are...
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8136228 |
Method for manufacturing a magnetic write head
A method for manufacturing a magnetic write head that avoids the challenges associated with the formation of fence structures during write pole definition. A magnetic write pole material is...
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8139318 |
Planar bidirectional tape head with planar read and write elements
A planar bidirectional tape head with planar read and write elements for reading and writing data on a magnetic recording tape includes a substrate, a tape bearing surface for engaging the magnetic...
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8130467 |
Planar write module and hybrid planar write-vertical read bidirectional tape head
A planar write module and a hybrid planar write-vertical read bidirectional tape head comprising the write module and one or more vertical read modules. The write module has a write module tape...
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8117738 |
Method to make a perpendicular magnetic recording head with a side write shield
A perpendicular magnetic recording (PMR) head is fabricated with a self-aligned pole tip shielded laterally by a separated pair of side shields and shielded from above by an upper shield. The side...
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8117736 |
Method of lapping a magnetic head slider
A method of lapping a magnetic head slider includes a step of lapping a lapping surface of a row bar provided with a plurality of MR read head elements arranged along at least one line, a step of...
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8117737 |
Method of manufacturing magnetic head for perpendicular magnetic recording with shield around main magnetic pole
A manufacturing method for a magnetic head includes the steps of: forming a structure on a lower shield, the structure including a lower gap, a main magnetic pole and first and second side gaps;...
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8108985 |
Method for manufacturing a perpendicular magnetic write head
A method for manufacturing a magnetic write head for perpendicular magnetic recording. The method includes forming a write pole, and then depositing a refill layer. A mask structure can be formed...
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8108986 |
Method for manufacturing a perpendicular magnetic write pole having a large bevel angle
A method for manufacturing a magnetic write head for perpendicular magnetic recording, the write head having a write pole with an increased bevel (taper) angle. The write pole is constructed by...
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8099855 |
Methods for fabricating perpendicular recording heads with controlled separation regions
Methods of recording head fabrication are provided to fabricate a region of separation material between a write pole and a shield of a write head that forms a controlled spacing between the write...
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8091209 |
Magnetic sensing device including a sense enhancing layer
A magnetic sensor includes a sensor stack having a first magnetic portion, a second magnetic portion, and a barrier layer between the first magnetic portion and the second magnetic portion. The...
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8089722 |
In situ radio frequency shield for a magnetic linear recording media head
A read/write head for magnetic tapes configured with an in situ radio frequency (RF) shield is provided. The RF shield of the invention inhibits device elements reading data from reading RF...
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8082657 |
Method for manufacturing an electrical lapping guide for magnetic write head core width optimization
A method for manufacturing a magnetic write head that allows the location of the flare point of a write pole to be accurately located relative to the air bearing surface. The method includes the...
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8079135 |
Method for providing a perpendicular magnetic recording (PMR) transducer
A method for providing a perpendicular magnetic recording (PMR) transducer is described. The PMR transducer provided includes a PMR pole and yoke structure coupled with the PMR pole. The method...
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8074345 |
Method of measuring a bevel angle in a write head
A method of measuring a bevel angle in a write pole comprises the step of providing a mask over a wafer containing the write pole. The mask has a first opening over the write pole and a second...
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8065787 |
Method of manufacturing a thermally assisted magnetic head
A thermally assisted magnetic head is formed by performing a head forming process, a mounting part forming process and a light source mounting process in that order. In the head forming process, a...
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8065788 |
Method for manufacturing a slider for a perpendicular magnetic recording head
A method for manufacturing a magnetic head for magnetic data recording, that allows a lapping termination point to be easily and accurately determined during lapping. The method includes...
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8065786 |
Manufacturing method of heat-assisted magnetic head constituted of slider and light source unit
Provided is a manufacturing method of heat-assisted magnetic recording head, in which a light source unit can be easily joined to a slider with sufficiently high accuracy, under avoiding the...
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8056213 |
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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8056214 |
Method of manufacturing magnetic head for perpendicular magnetic recording including two side shields
A magnetic head includes a pole layer, first and second side shields, and an encasing layer having a pole groove that accommodates the pole layer and first and second side shield grooves that...
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8051551 |
Method for fabricating a magnetic head having selectively defined reader gap thicknesses
A method for fabricating a magnetic head having multiple readers includes forming a plurality of generally laterally positioned lower shields; forming a lower gap layer above each lower shield;...
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8051552 |
Stitched wrap around shield fabrication for perpendicular magnetic recording write heads
A wrap around shield of a write head is fabricated in multiple processes, with side shields fabricated in one process, and a trailing shield formed in another process. These multiple processes form...
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8045290 |
Tape head layout having offset read and write element arrays
A tape head assembly for writing data to and reading data from a tape includes a tape head member having an engagement surface that is configured to engage the tape as the tape moves past the tape...
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8042259 |
Method of manufacturing a magnetic recording head
A magnetic recording head and a method of manufacturing the same. The magnetic recording head includes a stack containing a main pole and a return pole. The stack includes a first magnetic layer...
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8035919 |
Multi-channel thin-film magnetic head, magnetic tape drive apparatus with the multi-channel thin-film magnetic head and manufacturing method of multi-channel thin-film magnetic head
A multi-channel thin-film magnetic head includes a substrate, a plurality of thin-film magnetic head elements formed on the substrate, a closure fixed onto the plurality of thin-film magnetic head...
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8028400 |
Method for manufacturing a magnetic write head
A method for forming a tapered, electroplated structure. The method involves forming a first mask structure having an opening. A shrink material is deposited into the opening, such that the...
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8028399 |
Magnetic write pole fabrication
Write elements and methods of fabricating magnetic write poles are described. For one method, a vertical mask structure is formed on a magnetic layer in locations of a pole tip and a yoke of a...
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8027116 |
Method of manufacturing a hard-disk drive using a bulk eraser
A method of manufacturing of a hard-disk drive using a bulk eraser for erasing recorded information on a magnetic-recording disk. The method includes providing a bulk eraser that produces...
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8027124 |
Magnetic head
A system in one embodiment includes first and second modules, each module having a substrate, a closure, and a gap situated therebetween, the gap comprising transducers selected from readers and...
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7987583 |
Magnetic head slider testing apparatus and magnetic head slider testing method
A step portion for mounting a row bar is provided at a table stepping down from the face of the table, and by lowering a pair of hooks crossing over the step portion in its width direction, a row...
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7984545 |
Approaches for manufacturing a head gimbal assembly
Approaches for helping to decrease the amount of inactive gas necessary for reflow to interconnect connection terminals of a head slider and a suspension. Inactive gas is blown from a nozzle of a...
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7978429 |
Low track pitch write module and bidirectional tape head
A low track pitch write module and bidirectional tape head for writing and/or reading data on a magnetic recording tape. The write module and tape head have a tape bearing surface for engaging the...
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7963024 |
Method of manufacturing a magnetic write head for perpendicular magnetic recording
A method for manufacturing a magnetic write head for perpendicular magnetic data recording. The method allows an upper write coil to be formed directly on a conformally deposited layer of...
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7950138 |
Method of forming a pole tip region in a main pole layer of a perpendicular magnetic recording (PMR) write head
A main pole layer is deposited within an opening in a patterned photoresist layer on a substrate. The photoresist is thinned to expose an upper portion of a pole tip region that is then trimmed to...
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7952832 |
High areal density tape format and head
A magnetic recording tape according to one embodiment includes a plurality of servo tracks, each servo track comprising a series of magnetically defined bars, wherein an average height of the bars...
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7950137 |
Method for manufacturing a magnetic write head
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 magnetic structure includes a write...
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7934310 |
Process to manufacture a magnetic write head
Prior art designs of single pole writers have been limited by premature saturation at the tip. This limits the head field that can be achieved without simultaneously widening the write profile....
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7930817 |
Method of manufacturing a thermally assisted magnetic head
A method comprises an opposing step of arranging a light-shielding film 50 having a recessed surface 52 and a pinhole 54 formed within the recessed surface 52 such that an end face 54X of the...
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7921544 |
Method of manufacturing a thin film magnetic head structure
A thin-film magnetic head structure has a configuration adapted to manufacture a thin-film magnetic head configured such that a main magnetic pole layer including a magnetic pole end part on a side...
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7924533 |
Multi-channel head
A multi-channel head includes a substrate, a plurality of write elements arranged in a track width direction above the substrate in a lamination direction, and a plurality of read elements arranged...
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7895732 |
Method for manufacturing a perpendicular magnetic recording head
An embodiment of the present invention relates to a method of manufacturing a perpendicular magnetic recording having a main pole, return pole and trailing side shield disposed on the trailing side...
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7891080 |
Techniques for detecting head-disc contact
A method for detecting head-disc contact is disclosed. The method comprises locating a head including a head positioning microactuator and at least one of a read transducer and a write transducer...
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7877860 |
Method of manufacturing a magnetic head for perpendicular magnetic recording
A method of manufacturing a magnetic head includes the steps of forming an underlying layer, forming a pole layer including a track width defining portion at least by plating, using the underlying...
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7870659 |
Method for defining a perpendicular magnetic head
A method for defining a perpendicular magnetic head is provided. The method includes forming a portion of the read and write head including depositing a sensor film on a surface only over a region...
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