Method and system for providing a write head having a conforming pole structure
AssigneeRead-Rite Corporation
InventorsBilly Wayne Crue, Kenneth Everett Knapp, Zhupei Shi, Mark David Thomas
Life of this patent
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Abstract
A system and method for providing a write head is disclosed. The write head includes a first pole and a write gap. At least a portion of the write gap is on a portion of the first pole. The method and system include providing a coil layer including a plurality of turns on the write gap. Each of the plurality of turns is separated by a pitch. The method and system further include depositing an insulator to provide an insulating layer and providing a second pole above the insulating layer. The insulating layer has a first profile substantially conforming to the plurality of turns.
Claims25
A write head including a first pole and write gap, at least a portion of the write gap being on a portion of the first pole, the write head comprising:
- a coil layer including a plurality of turns on the write gap and having a first profile, each of the plurality of turns being separated by a pitch, each of the plurality of turns having a top and a bottom, the top and the bottom of each of the plurality of turns defining a top surface and a bottom surface for the coil layer;
- an insulating layer covering the coil layer and having a second profile substantially conforming to the first profile of the coil layer;
- and
- a second pole above the insulating layer, a portion of the second pole having a lower surface, the lower surface substantially conforming to the first profile of the coil layer such that a portion of the second pole extends between the top surface and the bottom surface of the coil layer and lies between a portion of the plurality of turns.
A method for providing a write head including a first pole and write gap, at least a portion of the write gap being on a portion of the first pole, the method comprising the steps of:
- (a) providing a coil layer including a plurality of turns on the write gap and having a first profile, each of the plurality of turns being separated by a pitch, each of the plurality of turns having a top and a bottom, the top and the bottom of each of the plurality of turns defining a top surface and a bottom surface for the coil layer;
- (b) depositing an insulator to provide an insulating layer on the coil layer, the insulating layer having a second profile substantially conforming to the first profile of the coil layer;
- and
- (c) providing a second pole above the insulating layer, a portion of the second pole having a lower surface, the lower surface substantially conforming to first profile of the coil layer such that a portion of the second pole extends between the top surface and the bottom surface of the coil layer and lies between a portion of the plurality of turns.
A write head including a first pole and write gap, at least a portion of the write gap being on a portion of the first pole, the write head comprising:
- a coil layer including a plurality of turns on the write gap, each of the plurality of turns being separated by a pitch, each of the plurality of turns having a top and a bottom, the top and the bottom of each of the plurality of turns defining a top surface and a bottom surface for the coil layer;
- an insulating layer covering the coil layer, the insulating layer having a thickness, the thickness of the insulating layer being sufficiently thin to allow the pitch of the coil layer to be less than three microns;
- and
- a second pole above the inorganic insulating layer, a portion of the second pole extending between the top surface and the bottom surface of the coil layer and lying between a portion of the plurality of turns.
A method for providing a write head including a first pole and write gap, at least a portion of the write gap being on a portion of the first pole, the method comprising the steps of:
- (a) providing a coil layer including a plurality of turns on the write gap, each of the plurality of turns being separated by a pitch, each of the plurality of turns having a top and a bottom, the top and the bottom of each of the plurality of turns defining a top surface and a bottom surface for the coil layer;
- (b) depositing an insulator to provide an inorganic insulating layer on the coil layer, the insulating layer having a thickness, the thickness of the insulating layer being sufficiently thin to allow the pitch of the coil layer to be less than three microns;
- and
- (c) providing a second pole above the inorganic insulating layer, a portion of the second pole extending between the top surface and the bottom surface of the coil layer and lying between a portion of the plurality of turns.
Dependencies are inferred from the claim text.