Magnetic head design having reduced susceptibility to...

Details Magnetic head design having reduced susceptibility to... Magnetic head design having reduced susceptibility to...

2011-08-23

2011-08-23

Cao, Allen (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

08004795

ABSTRACT:
Methods and structures for the fabrication of a thin film, longitudinal and perpendicular recording heads are disclosed. The heads comprise a plurality of embedded static dissipative layers that extend a few nanometers from the air bearing surface. These extended layers are first to contact the magnetic media surface and drain any electric charge buildup before a damaging discharge occurs with read or write head components. The embedded static dissipative layers are particularly useful for use in heads utilizing thermal fly height control systems, which tend to increase the probability of damaging electrical discharge through critical head components.

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Author unknown, Electrically dissapative alumina for recording head application, IBM disclosure document 453140, Jan. 2002.

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