Magnetic write head with recessed overcoat

Details Magnetic write head with recessed overcoat Magnetic write head with recessed overcoat

2007-05-01

2007-05-01

Renner, Craig A. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

C360S122000, C360S236500

Reexamination Certificate

active

10831834

ABSTRACT:
A magnetoresistive read/write head having a first layer of alumina and a second layer of silicon dioxide overlaying a P3 layer of the head. In a preferred embodiment, the silicon dioxide layer is recessed away from an Air Bearing Surface (ABS) to reduce protrusion of a P2 layer and the P3 layer in the head, and to reduce degradation in the magnetic properties of the pole tips of the P2 and P3 layer ends.

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patent: 59063057 (1984-04-01), None
patent: 4339308 (1992-11-01), None
patent: 8171708 (1996-07-01), None

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