Merged read/write head and method of fabricating same
AssigneeRead-Rite Corporation
InventorsZhupei Shi, Aiguo Feng
Life of this patent
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Abstract
A merged thin film read/write head having a read element having a first shield layer, a second shield layer and a magnetoresistive element disposed between the first and second shield layers, a thin spacer layer of nonmagnetic material formed upon the second shield layer and an inductive write element having a first pole pedestal formed upon the spacer layer and a second pole separated from the pedestal by a gap. The pedestal includes a tapered portion for reducing the formation of pinned magnetic domains in the pedestal and providing improved flux passage. In combination with the thin nonmagnetic spacer layer, the tapered feature of the pedestal eliminates popcorn noise in the read element.
Claims5
A merged read/write head comprising:
- a read element having a first shield layer, a second shield layer and a magnetoresistive element disposed between the first and second shield layers;
- a spacer layer of nonmagnetic material formed upon the second shield layer;
- and
- an inductive write element having a pole pedestal formed upon the spacer layer and a second pole separated from the pedestal by a gap, the pole pedestal comprising a first air bearing surface and an opposing surface, the opposing surface having a tapered portion formed thereon.
Dependencies are inferred from the claim text.