Large protrusion recording head for controlled magnetic...

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

2005-09-20

2005-09-20

Sniezek, Andrew L. (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S125330, C360S317000, C360S078040, C029S603010

Reexamination Certificate

active

06947246

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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patent: 2003/0067717 (2003-04-01), Garfunkel et al.
patent: 2005/0024764 (2005-02-01), Hsiao et al.

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