Matches 1 - 50 out of 913 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >
Match Document Document Title
7443632 Magnetic head with stitched top pole layer and single layer coil or solenoidal coil  
A magnetic head is disclosed that has first and second substantially flat soft magnetic pole layers that are magnetically coupled together in a backgap region that is removed from the medium-facing...
7440213 Apparatus and method for controlling remnant magnetization in a magnetic recording head  
The present invention provides a magnetic writer. The magnetic writer comprises a write circuit, a write pole, a first write coil for inducing a first magnetic field in the write pole by a first...
7428776 Method of manufacturing a magnetic head  
A method of manufacturing a thin-film coil in which a first coil and a second coil each having a desired number of winding are electrically connected in series and the second coil is formed between...
7414810 Magnetic head structure with insulating layer configured to reduce thermal deformation of floating surface towards disk  
A magnetic head structure has a coil and a magnetic pole allowing a magnetic flux generated by the coil to be transmitted therethrough and forming a magnetic gap. An insulating layer surrounds the...
7397625 Large protrusion recording head for controlled magnetic spacing recording/reading  
A magnetic head structure having enhanced protrusion and having a first pole structure, a second pole structure forming a yoke with the fist pole, a coil structure disposed in the yoke, and a layer...
7394619 Disk drive write head for writing cross-track magnetizations  
An inductive write head has its write poles and write gap oriented to generate magnetic fields in the cross-track direction on a magnetic recording disk in a disk drive. The disk has the...
7382573 Magnetic write head having a magnetically anisotropic write pole  
A magnetic write head for magnetic data recording. The magnetic write head has a write pole with a magnetic anisotropy induced by an angled, directional ion milling of a seed layer. The magnetic...
7363700 Method of manufacturing a thin film magnetic head  
The present invention provides a thin film magnetic head achieving improved recording performance by sharpening recording magnetic field gradient as much as possible. The thin film magnetic head...
7363699 Method for manufacturing a magnetic read sensor employing oblique etched underlayers for inducing uniaxial magnetic anisotropy in hard magnetic bias layers  
A magnetoresistive sensor having a hard bias layer with an engineered magnetic anisotropy in a direction substantially parallel with the medium facing surface. The hard bias layer may be...
7362543 Magnetoresistive/inductive write head assembly formed with seed layers having a uniform thickness  
The present invention presents a method for fabricating coil elements for magnetic write heads. A coil pattern is formed on a substrate using photolithographic techniques. The substrate is etched...
7362542 Slider with underpass lead configured as a cooling plate  
A slider is disclosed having a continuous coil including front coils, back coils, and a center tab, a write head including upper and lower poles which sandwich at least a portion of the front coils...
7359146 Perpendicular magnetic recording element having stacked FM and AFM films applying magnetic bias along easy axis of soft magnetic film  
The soft magnetic film takes its hard axis along the direction in which a magnetic field is generated and its easy axis along a direction perpendicular to the direction of the writer magnetic...
7350284 Methods of making a current-perpendicular-to-the-planes (CPP) type sensor by ion milling to the spacer layer using a mask without undercuts  
In one particular example, a plurality of CPP type sensor layers are formed over a wafer and a mask without undercuts is formed over the plurality of CPP type sensor layers in a central region....
7319572 Thin film coil and method of forming the same, and thin film magnetic head and method of manufacturing the same  
Provided are a thin film coil formed at high densities, a method of forming a thin film coil, a thin film magnetic head which includes the thin film coil and thus enables ensuring stable recording...
7310204 Inductive writer design for using a soft magnetic pedestal having a high magnetic saturation layer  
A magnetic head for writing information on a relatively-moving medium has a pair of substantially flat soft magnetic pole layers separated by a pair of coil layers. A soft magnetic pedestal adjoins...
7310202 Magnetic recording head with clad coil  
A magnetic write head for recording data having reduced erasure caused by a magnetic field is disclosed. The magnetic write head include a main pole and a conductive coil positioned adjacent the...
7307815 Method for making a perpendicular magnetic recording write head with a self aligned stitched write shield  
A perpendicular magnetic recording (PMR) head with single or double coil layers has a small write shield stitched onto a main write shield. The stitched shield allows the main write pole to produce...
7304821 Magnetic head coil structure and method for manufacturing the same  
A Damascene process is provided for manufacturing a coil structure for a magnetic head. During the manufacturing process, an insulating layer is initially deposited after which a photoresist layer...
7296339 Method for manufacturing a perpendicular magnetic recording head  
A method and system for manufacturing a perpendicular magnetic recording head is disclosed. The method and system include providing a chemical mechanical planarization (CMP) uniformity structure...
7292408 Bilayer coil insulation for magnetic write heads to minimize pole recession  
A magnetic write head for use in a data recording system having first and second magnetic pole, the first pole having a P1 pedestal. An electrically conductive coil passes through a space between...
7286321 Thin film magnetic head having toroidal coil and manufacturing method of the same  
Within a space surrounded by a lower core layer, an upheaval layer, and a back gap layer, there are a plurality of first coil pieces arranged in a height direction and covered with a coil...
7283327 Magnetic write head having resistive heater coil  
A magnetic write head includes a magnetic yoke having a first pole and a second pole. The first pole and the second pole each terminate at an air bearing surface. The first pole is magnetically...
7280313 High aspect ratio co-planar structure fabrication consisting of different materials  
A a method for fabricating a structure, such as a magnetic head, having two coplanar metallic features of different compositions, both deposited on their own seed layers. The features may be made...
7280298 Thin film magnetic head fit to recordation of higher frequency  
A set of coils wind around a magnetic core in a thin film magnetic head. Current supplying circuits are separately connected to the individual coils. The individual coils get shorter in the overall...
7275306 Damascene method for forming write coils of magnetic heads  
An improved damascene method of forming a write coil of a magnetic head. The method includes the steps of forming a hard mask layer over an insulator layer; forming a photoresist layer over the...
7268975 High data rate writer with low resistance coil and short yoke  
One of the major requirements for higher frequency extendability is to reduce yoke length and inductance in order to have fast saturation. This has been accomplished by using a design that provides...
7248431 Method of fabricating a perpendicular recording write head having a gap with two portions  
A method of fabricating a write head for perpendicular recording is provided. The write head has a pole, a shield in proximity to the pole, and a gap between the pole and the shield. The method...
7233458 High magnetic moment Co-Fe-O-N films with soft magnetic properties  
A write element includes a first pole pedestal and a second pole pedestal opposing the first pole pedestal and defining a write gap between the first and second pole pedestals. A first layer of...
7228619 Method of manufacturing a magnetic head with common seed layer for coil and pedestal  
A method for fabricating a coil and pedestal for a write head using a common seed layer is described. A nonmetallic gap layer is deposited on a planarized pole piece surface. Openings for the pole...
7199974 Read/write head with reduced pole tip protrusion  
A write element for use in a read/write head having an air bearing surface, so as to reduce pole tip protrusion. The write element includes a pole tip region; an insulation layer formed adjacent to...
7199973 Perpendicular magnetic recording head with trailing shield throat height less than shaping layer distance from ABS  
A head structure having a write head portion for writing data to magnetic media. The write head portion includes a first pole piece with a first pole tip, a probe pole piece having a probe pole tip...
7190552 Magnetic head having a damascene-fabricated write coil structure with coil layers extending between the poles for reduced electrical resistance  
Magnetic heads having write coil structures with reduced electrical resistances for reducing thermal protrusion are disclosed. In one illustrative example, a magnetic head includes a magnetic yoke;...
7181827 Method of forming magnetic layer pattern  
Provided is a method of manufacturing a thin film magnetic head capable of achieving compatibility between preventing the occurrence of side erasing and securing overwrite characteristics. When a...
7180706 Magnetic heads and semiconductor devices and surface planarization processes for the fabrication thereof  
A magnetic head according to one embodiment includes a pole piece made of a magnetic material; one or more magnetic pedestals formed over the pole piece; an insulator material formed over the pole...
7180704 Magnetic head for perpendicular recording and magnetic disk storage apparatus mounting the head  
A magnetic head is composed to diminish disordered writing bits of a recording layer or reading noise caused by a magnetic field generated from an under layer without decreasing a writing magnetic...
7178222 Method of manufacturing a tunneling magnetoresistive element  
Insulating layers are formed on both sides of a multilayer film, and bias layers are formed in contact with at least portions of both end surfaces of a free magnetic layer. The bias layers are...
7174621 Method of manufacturing a thin film magnetic head  
A thin film magnetic head has coil layer formed in a space surrounded by a lower core layer, a protruding layer and a back gap layer. The top of these layers are planarized to a continuous flat...
7168156 Method of manufacturing a thin-film magnetic head  
A thin-film magnetic head comprises first and second magnetic pole groups, magnetically connected to each other, having respective magnetic pole parts opposing each other on a side of a...
7158344 Thin-film magnetic head having helical coils and manufacturing method for the same  
A plurality of first coil segments is formed in a space encompassed by a lower core layer, a protuberant layer, and a back gap layer, and a magnetic pole layer is deposited on the first coil...
7151647 Thin film magnetic head and manufacturing method for creating high surface recording density and including a second yoke portion having two layers of which one is etched to form a narrow portion and a sloped flare portion  
The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a first coil and a second coil are provided on a first insulating film formed on one...
7130153 Stitched write head with staircase P2 defined throat height  
A magnetic write head assembly has a head surface and a track width at the head surface wherein the head surface forms a first vertical plane and wherein the head assembly includes first and second...
7126789 Low DC coil resistance planar writer  
Present processes used for planarizing a cavity filled with a coil and hard baked photoresist require that a significant amount of the thickness of the coils be removed. This increases the DC...
7119989 Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive  
A thin-film magnetic head comprises first and second magnetic pole groups, magnetically connected to each other, having respective magnetic pole parts opposing each other on a side of a...
7119987 Thin-film magnetic head, a head gimbal assembly, and a hard disk drive  
A thin-film magnetic head comprises first and second magnetic pole groups, magnetically connected to each other, having respective magnetic pole parts opposing each other on a side of a...
7116518 Short yoke length planar writer with low DC coil resistance  
Present processes used for planarizing a cavity filled with a coil and hard baked photoresist require that a significant amount of the thickness of the coils be removed. This increases the DC...
7116516 Magnetic head having write head with helical coil and method for fabrication thereof  
The present invention is a magnetic head having a helical induction coil and includes hard disk drive devices that utilize the magnetic head. The helical coil is fabricated around a magnetic pole...
7110217 Write head design with improved bump to control write saturation  
A magnetic head having an air bearing surface (ABS) and a first pole tip. A second pole tip is spaced apart from and facing the upper end of the first pole tip across a write gap. A bump extends...
7102853 Negative thermal expansion dielectrics for thermal pole tip protrusion compensation  
A slider having a magnetic read/write head and including, a base coat, a reader element having a transducer, a writer element, the writer element including at least one conductive coil, the coil...
7092207 Thin film magnetic head and method of manufacturing the same  
A thin film magnetic head and a method of manufacturing the same allowing miniaturization of a magnetic pole width with high precision are provided. After forming a first insulating layer portion...
7088549 Thin-film magnetic head having a high recording density and frequency  
A gap depth determining insulating layer is formed on a lower core layer. A curved face is formed on a front edge face of the gap depth determining insulating layer so as to gradually depart from...
Matches 1 - 50 out of 913 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >