Perpendicular magnetic head having modified shaping layer for direct plating of magnetic pole piece
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorJeffrey S. Lille
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Abstract
A magnetic head of the present invention includes a first magnetic pole that is exposed at the air bearing surface of the magnetic head and a second magnetic pole shaping layer that is not exposed at the air bearing surface. A layer of non-magnetic material is fabricated between the air bearing surface and the shaping layer, where the non-magnetic material is also electrically conductive. The pole tip of the magnetic head is electroplated on top of the non-magnetic electrically conductive material subsequent to the fabrication of the shaping layer, and in magnetic flux communication with the shaping layer.
Claims16
A magnetic head comprising:
- a first magnetic pole having a portion thereof that is exposed at an air bearing surface (ABS) of the magnetic head;
- a shaping layer portion of a second magnetic pole, said shaping layer being engaged in magnetic flux communication with said first magnetic pole and having no portion thereof that is exposed at said ABS;
- a layer of non-magnetic, electrically conductive material being disposed between said shaping layer and said ABS.
A hard disk drive, comprising:
- at least one hard disk being adapted for rotary motion upon a disk drive;
- at least one slider device having a slider body portion;
- a magnetic head being formed on said slider body portion for writing data on said hard disk;
- said magnetic head including:
- a first magnetic pole having a portion thereof that is exposed at an air bearing surface (ABS) of the magnetic head;
- a shaping layer portion of a second magnetic pole, said shaping layer having no portion thereof that is exposed at said ABS;
- a layer of non-magnetic, electrically conductive material being disposed between said shaping layer and said ABS.
Dependencies are inferred from the claim text.