Large protrusion recording head for controlled magnetic...

Details Large protrusion recording head for controlled magnetic... Large protrusion recording head for controlled magnetic...

2008-07-08

2008-07-08

Sniezek, Andrew L. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S123450, C360S123460, C360S125430, C360S125520, C360S317000, C360S078040, C029S603010

Reexamination Certificate

active

07397625

ABSTRACT:
A magnetic head structure having enhanced protrusion and having a first pole structure, a second pole structure forming a yoke with the fist pole, a coil structure disposed in the yoke, and a layer of partially cured polymer operatively coupled to the yoke. Also disclosed is a magnetic head having a first pole structure, a second pole structure forming a yoke with the fist pole, a coil structure disposed in the yoke, and a layer of at least partially insulative material operatively coupled to the read and/or write head for providing enhanced protrusion, the at least partially insulative material having a coefficient of thermal expansion higher than a coefficient of thermal expansion of fully cured hard bake novalac. Further embodiments include disk drive systems having the head structures described herein.

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