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7631416 |
Method of making thin film magnetic head using electric lapping guide
A reticle having a convex portion and a concave portion is used to form a convex portion and concave portion in the resist pattern for magnetic detection element and conductive layer, respectively....
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7631417 |
Use of anti-reflective seed layers for the fabrication of perpendicular thin film heads
Methods and structures for the fabrication of perpendicular thin film heads are disclosed. Prior to the deposition of shield structures, seed layers having anti-reflective properties are utilized,...
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7621038 |
Method for fabricating a three terminal magnetic sensor for magnetic heads with a semiconductor junction
A method for fabricating a three terminal magnetic (TTM) sensor of a magnetic head according to one embodiment includes fabricating a P-type semiconductor material; fabricating an N-type...
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7610673 |
Method of manufacturing a vertical recording magnetic head
A vertical recording magnetic head and a method of manufacturing the same is provided. The magnetic head includes a main magnetic pole layer on a surface opposite to a recording medium and a pair...
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7607215 |
Method of manufacturing magnetic head slider
To provide a method of manufacturing magnetic head slider which is capable of improving the product quality, simplifying the manufacturing process, and reducing the manufacturing time. This method...
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7603763 |
Method for manufacturing a magnetoresistive multilayer film
A method for manufacturing a magnetoresistive multilayer film. An antiferromagnetic layer, a pinned-magnetization layer, a nonmagnetic spacer layer and a free-magnetization layer are laminated on a...
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7596854 |
Method of fabrication for read head having shaped read sensor-biasing layer junctions using partial milling
A method is disclosed for fabricating a read head for a magnetic disk drive having a read head sensor and a hard bias layer, where the read head has a shaped junction between the read head sensor...
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7596853 |
Method of manufacturing thin film magnetic head having lower shield layer embedded in insulating
The method of manufacturing a thin film magnetic head includes forming a first recessed portion for insulation and a second recessed portion for contact that reach the substrate through the first...
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7587811 |
Method for manufacturing a magnetic write head for perpendicular magnetic data recording
A method for manufacturing a magnetic write head for perpendicular magnetic recording having a write pole with a very narrow track width and well controlled critical dimensions. The write pole is...
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7578049 |
Method for constructing a magnetic write pole for a perpendicular magnetic recording head
A method for manufacturing a write pole for a perpendicular magnetic write head. The method includes forming a mask structure over a full film layer of magnetic write pole material. A layer of hard...
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7565732 |
Method of manufacturing a write pole
A method of fabricating a magnetic write head, in accordance with one embodiment, includes forming a beveled write pole. A conformal spacer may be formed upon a portion of a flare length proximate...
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7565733 |
Process for the fabrication of multilayer thin film magnetoresistive sensors
An improved method for the manufacture of magnetoresistive multilayer sensors is disclosed. The method is particularly advantageous for the production of magnetic tunnel junction (MTJ) sensors,...
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7563381 |
High milling resistance write pole fabrication method for perpendicular recording
A method for constructing a tapered write pole, the method including the use of a bilayer hard mask.
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7562437 |
Method of manufacturing a wrap around shield for a perpendicular write pole using a laminated mask
A method for constructing a magnetic write head for use in perpendicular magnetic recording, the write head having a write pole with a trailing shield that wraps around the write pole. The method...
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7562436 |
Deposition defined trackwidth for very narrow trackwidth CPP device
In one embodiment, a method of forming a CPP sensor comprises providing a sensor having a hard mask disposed on a left side thereof and a right side with a portion of the sensor material removed...
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7555828 |
Method for manufacturing a read sensor for a magnetoresistive head
A read sensor for a magneto resistive head is formed through the use of a bilayer lift-off mask. According to one embodiment, a release layer is formed on top of a sensor layer. A...
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7552524 |
Method for preventing TMR MRR drop of a slider
A method for preventing TMR (tunnel magneto-resistance) MRR (magneto-resistance resistance) drop of a slider, comprises steps of: positioning a row bar constructed by a plurality of slider...
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7552523 |
Method for manufacturing a perpendicular magnetic recording transducer
A method and system for manufacturing a perpendicular magnetic recording transducer by a process that includes plating is described. The method and system include forming a chemical mechanical...
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7549213 |
Method for independent trackwidth and wall angle control and hexagonal write head
A method for independently controlling track width and bevel angle of a write pole tip having a P 3 pole tip for perpendicular recording. The method includes establishing the track width in a...
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7549215 |
Method for manufacturing a magnetic head for perpendicular magnetic data recording
A structure and method for performing magnetic inductance testing of write heads formed on a wafer. The structure and method allows for the effective inductive testing of magnetic write heads at...
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7536772 |
Method of manufacturing a bottom spin valve with a laminated CoFe free layer
A method is given for the manufacture of a bottom spin valve (BSV) spin filter spin valve (SFSV) type read sensor. The sensor has a composite, ultra-thin (<20 Angstroms) laminated free layer...
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7536776 |
Fabrication method for thin film magnetic heads
A fabrication method for thin film magnetic heads, comprises, forming a Current Perpendicular to a Plane (CPP) sensor film over a lower shield and a first chemical mechanical polishing (CMP) stop...
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7536777 |
Use of metal capped seed layers for the fabrication of perpendicular thin film heads
Methods and structures for the fabrication of perpendicular thin film heads are disclosed. Prior to the deposition of shield structures, capped seed layers having a dual layer structure are...
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7536775 |
Method for sample preparation for exposing a main pole of a recording head
A method for sample preparation. The method includes mechanically polishing portions of an insulating layer over a main pole of a recording head embedded within a sample structure. The insulating...
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7536778 |
Method of fabrication for slider with underpass leads
A method of fabrication is disclosed for a slider having sites for fabrication of a continuous coil having a set of front coils and a set of back coils and a center tab, where the slider includes...
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7536774 |
Method and apparatus for integrating a stair notch and a gap bump at a pole tip in a write head
A method and apparatus for integrating a stair notch and a gap bump at a pole tip in a write head is disclosed. A protective plated layer is formed over the bump to prevent the bump form being...
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7533456 |
Fabrication process for magneto-resistive effect devices of the CPP structure
A free layer functions such that a magnetization direction changes depending on an external magnetic field, and is made up of a multilayer structure including a first Heusler alloy layer, and a...
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7530160 |
Method for manufacturing a magnetoresistive sensor having improved antiparallel tab free layer biasing
A method for manufacturing a magnetoresistive sensor having improved free layer biasing and track width control. The method includes forming a ferromagnetic pinned layer, and depositing a...
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7530159 |
Method of distortion correction in shrink processes for fabrication of write poles
A method is presented for fabricating a write pole for a magnetic recording head, wherein a photoresist layer is formed on a wafer stack. A target P 2 pole configuration is provided, and a...
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7526856 |
Method for fabricating a magnetic head using a ferrofluid mask
A method for fabricating sliders (magnetic heads) with a recessed surface around a magnetic feature such as the active components of the write head on the air-bearing surface (ABS) is described. An...
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7523543 |
Methods of forming magnetic memory devices including ferromagnetic spacers
A magnetic memory device may include a digit line on a substrate, a first insulating layer on the digit line, and a magnetic tunnel junction memory cell on the first insulating layer so that the...
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7520048 |
Method of fabricating a GMR head
A giant magnetoresistive (GMR) head is formed to include a recess in an overcoat layer that reduces stress on the poles. The process includes depositing a seed layer over the overcoat layer prior...
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7516538 |
Method of manufacturing a magnetic head for perpendicular magnetic recording
A method of manufacturing a magnetic head is disclosed. The steps of manufacture include the formation of an underlying layer made of a material whose etching rate of ion beam etching is higher...
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7509729 |
Method for making a perpendicular magnetic recording write head
A method for making a write pole in a perpendicular magnetic recording write head uses a metal mask to pattern the primary resist and only ion milling during the subsequent patterning steps. A...
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7506431 |
Method of manufacturing a perpendicular magnetic write head having a wrap-around trailing shield and a concave trailing edge main pole
A method for manufacturing a magnetic write head for perpendicular magnetic recording. The method allows the write head to be formed with a write pole having a concave trailing edge. The method...
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7506432 |
Method of manufacturing thin-film magnetic head
A lower shield layer is formed by being embedded in a first recess formed in an under layer. Accordingly, the distance between the lower shield layer and a slider can be reduced. Also, a second...
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7506430 |
Process to manufacture narrow track CPP head with bias cancellation
The problem of increased edge sensitivity associated with the reduction of the spacing between bias magnets in a CPP head has been solved by limiting the width of the bias cancellation layer and by...
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7506429 |
Method of constructing a magnetic sensor
A magnetoresistive sensor having a well defined track width and method of manufacture thereof.
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7506428 |
Ion mill process with sacrificial mask layer to fabricate pole tip for perpendicular recording
A method of fabrication of the write head of a perpendicular recording head allows for production of P 3 pole tips of width less than 200 nm (200×10 −9 meters). The method includes fabricating...
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7500303 |
Method of fabricating a magnetic sensor on a wafer
A read head for a disk drive and a method of fabricating the read head with overlaid lead pads that contact the top surface of the sensor between the hardbias structures to define the electrically...
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7500302 |
Process for fabricating a magnetic recording head with a laminated write gap
Embodiments of the present invention recite a process for fabricating a write gap structure for a magnetic recording head. In one embodiment, at least one layer of inert material is deposited which...
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7497008 |
Method of fabricating a thin film magnetic sensor on a wafer
An embodiment of the invention is a magnetic head with overlaid lead pads that contact the top surface of the sensor between the hardbias structures and do not contact the hardbias structures which...
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7497009 |
Main pole forming method of perpendicular magnetic recording head
A main pole forming method is provided. The main pole forming method includes etching an exposed side face of a main pole layer, and the plated foundation film, thereby defining a recording track...
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7493688 |
Method of manufacturing a magnetic recording transducer
A method for providing a magnetic recording transducer is disclosed. The method includes providing a first pole having front and rear portions and a back gap on the rear portion. The method also...
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7475471 |
Method for fabricating a magnetic head
A GMR read head for a magnetic head, in which the hard bias layers are fabricated immediately next to the side edges of the free magnetic layer, and such that the midplane of the hard bias layer...
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7472469 |
Method for fabricating a magnetic head having a sensor stack and two lateral stack
A method is disclosed for fabricating a read sensor for a magnetic head for a hard disk drive having a read sensor stack and two lateral stacks. The method of fabrication includes forming lateral...
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7472470 |
Method of manufacturing a perpendicular magnetic recording head
A main magnetic pore layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer...
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7469468 |
Methods of slider-level reader isolation measurement technique for advanced GMR heads
A read/write head for a disk drive having a shorting conductor from a shield of the read element to a conductor that runs from the write element to an external electrical contact pad. This allows...
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7469467 |
Method of manufacturing a perpendicular write head
A perpendicular write head includes a main pole comprising a Durimide/Alumina hard mask formed over a laminate layer process to form the main pole without using a liftoff or chemical mechanical...
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7467461 |
Additive gap process to define trailing and side shield gap for a perpendicular write head
A method of manufacturing a magnetic write head for perpendicular magnetic recording. The method includes the formation of a write pole over a substrate. A non-magnetic side gap layer is deposited...
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