Enhanced coplanar conductance structure for inductive heads

Details Enhanced coplanar conductance structure for inductive heads Enhanced coplanar conductance structure for inductive heads

2005-12-27

2005-12-27

Watko, Julie Anne (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Coil

Reexamination Certificate

active

06980395

ABSTRACT:
A high aspect ratio structure using topographical features to increase conformal coverage area provides high conductance. An insulation layer is disposed over a magnetic material. At least one trench is formed in the insulation layer to form a coil, where the at least one trench forms the coil with multiple coil windings. A plurality of topographical features is formed in at least one nonconfined area of the coil to increase conformal coverage area. A metal, such as copper, is deposited into the at least one trench and topographical features to form an inductive structure.

REFERENCES:
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patent: 6051496 (2000-04-01), Jang
patent: 6157081 (2000-12-01), Nariman et al.
patent: 6349014 (2002-02-01), Crue et al.

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