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7631418 |
Process to form an ABS through aggressive stitching
A manufacturing process is provided where aggressive (i.e. tight tolerance) stitching offers several advantages for magnetic write heads but at the cost of some losses during pole trimming. This...
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7624493 |
Manufacturing apparatus for a winding assembly of a rotating electrical machine
There are proposed a manufacturing method of a winding assembly of a rotating electrical machine using a rotation block and a fixed block and a manufacturing apparatus used for the same. The...
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7549216 |
Method of manufacturing a thin film magnetic head
The invention is directed to a method for manufacturing a thin film magnetic head comprising forming a first coil, a first pole piece and a first back gap piece on a first insulating film formed on...
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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...
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7370403 |
Method of fabricating a planar spiral inductor structure having an enhanced Q value
Within a method for fabricating an inductor structure there is first provided a substrate. There is then formed over the substrate a planar spiral conductor layer to form a planar spiral inductor,...
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7360303 |
Method manufacturing for a winding assembly of a rotating electrical machine
There are proposed a manufacturing method of a winding assembly of a rotating electrical machine using a rotation block and a fixed block and a manufacturing apparatus used for the same. The...
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7346978 |
Process of making a thin film magnetic head
A method for manufacturing a thin film magnetic head comprises forming a first magnetic core extending from a surface facing a recording medium in a height direction. The method further comprises...
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7322097 |
Method of manufacturing a magnetic head having short pole yoke length
The induction coil of the magnetic head of the present invention is fabricated in a patterned electrical insulation material, preferably utilizing reactive ion etch (RIE) techniques. The electrical...
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7243411 |
Method for protecting write head coil during write pole/shaping
A method for protecting a write head coil during write pole notching using ion mill resistant mask formed by reactive ion etching is disclosed. Ion mill shaping of the write pole is performed after...
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7194798 |
Method for use in making a write coil of magnetic head
Methods suitable for use in making a write coil of a magnetic head includes the steps of forming a seed layer made of ruthenium (Ru) over a substrate; forming, over the seed layer, a patterned...
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7146714 |
Manufacturing a magneto-optical write/read head
A method of manufacturing a digital magneto-optical signal write/read head including a thin-film in-plane magnetic coil disposed on an outwardly directed surface of a coil substrate. Coil lead in...
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7117583 |
Method and apparatus using a pre-patterned seed layer for providing an aligned coil for an inductive head structure
A method and apparatus using a pre-patterned seed layer for providing an aligned coil for an inductive head structure. The method uses an aligned process where the base plate imprint is fabricated...
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7111384 |
Method for manufacturing magnetic head including coil
A method for manufacturing a magnetic recording head includes the steps of forming a first lifting layer and a second lifting layer on a bottom core layer, forming an inorganic insulating layer in...
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7111387 |
Method of manufacturing a thin film magnetic head comprising an insulating layer provided between a core and coil
A method of manufacturing a thin film magnetic head comprising an insulating layer provided between a core and a coil is provided. Also provided is a method for forming an inorganic insulation...
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7107666 |
Method of manufacturing an ultra-miniature magnetic device
An ultra-miniature magnetic device generally comprises a conductive winding and a magnetic core. The conductive winding includes an upper conductor and a lower conductor. The magnetic core is of an...
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7089651 |
Process of manufacturing coil layers using a novel combination of photoexposure and thermal curing to achieve shape control of a photoresist material
A method for forming at least two layers of electrical coils and their supportive resistive layers for a magnetic write head having an ultra-short yoke so that the second and any additional coil...
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6977796 |
Wiring pattern and method of manufacturing the same and thin film magnetic head and method of manufacturing the same
A bottom track pole is formed on a surface of a bottom pole, a thin film coil is formed on the bottom pole to form a flat coplanar surface with the bottom track pole, a write gap film is formed on...
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6804879 |
Method of fabricating a magnetic transducer with a write head having a multi-layer coil
A method for producing a magnetic transducer with a inductive write head having a multilayer coil with a high aspect ratio and a short yoke is provided. A damascene process is used for two coil...
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6785955 |
Method for providing pedestal-defined zero throat writer
A method and system for providing a writer is disclosed. The method and system include providing a first pole, an insulator covering a portion of the first pole and a coil on the first insulator....
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6496330 |
Magnetic write head having a splitcoil structure
A magnetoresistive head having a split coil structure including multiple, similar coil layers separated by an insulator and joined at their ends to define parallel electrical paths. The coil passes...
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6226860 |
Method of forming an inductive writer having a high conductor/insulator ratio
A method of fabricating a coil structure for use in a writer portion of a recording head is disclosed. The method comprises fabricating a bottom pole. A bottom insulating layer is fabricated on the...
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5933940 |
Method of manufacturing a recording/reading matrix magnetic head
A matrix type magnetic recording/reading head made in integrated fashion, including an electrically non-conductive ceramic substrate having a first main face and a second main face, each provided...
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5875080 |
Write head with second coil above pole having coil density less electrically connected first coil below the pole
A low inductance magnetic write head is provided with first and second pole piece layers that have first ends separated by a write gap layer and second ends connected together at a back gap. An...
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5673474 |
Method of fabricating a thin film magnetic head including layered magnetic side poles
A method is provided for fabricating a thin film magnetic head on a substrate. A seed layer formed on the substrate and advantageously used as a common seed for a plurality of magnetic head related...
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5448822 |
Method of making a thin film magnetic head having multi-layer coils
A method of making a thin film magnetic head having multi-layer coils wherein a raised insulative photoresist spiral pattern having undercut sidewalls is formed. Two layers of coils are fabricated...
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5022141 |
Method for manufacturing multiturn thin film coil
A method of manufacturing a multiturn coil and a thin film magnetic head including a multiturn coil. This multiturn coil manufacturing method includes the following steps. First a laminate made up...
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4977666 |
Method of forming a coil on a core
In a method for forming a coil and a coil formed by the method, a first wire having a thick insulating coating is inserted into a hole of a workpiece and wound around a peripheral surface of the...
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4841402 |
Thin film magnetic head and method of manufacture
A thin film magnetic head having two conductor layers provided within a magnetic circuit constituted by a first and a second magnetic member. The magnetic circuit has, at the side to which a...
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4829659 |
Process for the production of a magnetic hea making it possible to simplify the production of electrical connections
Process for producing a magnetic head with a horizontal structure. A planar subassembly is formed having a first pole piece (38), interconnection tracks (40, 42) and intraconnection tracks (32, 34)...
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4804816 |
Method of making a thin-film magnetic head having a multi-layered coil structure
A method of making a thin-film magnetic head having a multi-turn structure includes forming a lower magnetic layer on a substrate, and successively forming a first insulating layer and a first...
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4791719 |
Method of manufacturing a thin-film magnetic head
A first magnetic layer is formed upon a non-magnetic substrate, a gap layer is formed upon the first magnetic layer, a conductor coil covered with an insulation layer is formed upon the gap layer,...
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4727643 |
Method for manufacturing a magnetic head by a thin-film technique
A method for manufacturing a magnetic head by a thin-film technique which head comprises at least two magnet legs which have pole surfaces which face a recording medium and which lie in a common...
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4684438 |
Process for producing a coil for a magnetic recording head
A process for producing a coil for a magnetic recording head and the coil obtained by this process. An insulating film which covers a support is etched in order to give it the shape of a first...
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4677036 |
Method of production of thin film magnetic head and magnetic head
There provides a process for preparing a coil type thin film magnetic head having high density record by planarization differences in level caused by an electroconductive coil holded between upper...
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4416056 |
Process for preparation of film coils
A process for the preparation of film coils is disclosed, which comprises forming a first plane coil layer by arranging a plurality of insulated spiral conductor patterns wound in the same...
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4281357 |
Thin film magnetic head and method of making the same
A thin film magnetic head is disclosed which includes a substrate, a first layer of magnetic material having a first offset portion, a second layer of magnetic material having a second offset...
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4246620 |
Thin film magnetic head and method for manufacturing the same
A thin film magnetic head having a contact surface which, when such magnetic head is in use, slidingly contacts a magnetic information carrier, such as a magnetic tape, drum or disc, for the...
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3672043 |
MINIATURE MAGNETIC HEAD
This invention relates generally to magnetic transducer devices, and more particularly to a novel magnetic transducer construction and method of making.
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