Embedded wire planar write head system and method

Details Embedded wire planar write head system and method Embedded wire planar write head system and method

2005-09-20

2005-09-20

Tupper, Robert S. (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Core

C360S122000

Reexamination Certificate

active

06947256

ABSTRACT:
A magnetic write head and method for bulk fabrication of the same are provided. A trench is formed in a nonmagnetic substrate. A first magnetically permeable layer is deposited in the trench of the substrate. An optional first insulating layer is deposited in the trench. A conducting circuit is defined in the trench. The conducting circuit creates the magnetic flux. An optional second insulating layer is deposited in the trench. Writer gaps are patterned and then a second magnetic layer is added over the second insulating layer. The substrate is divided to form individual write heads.

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patent: 5652015 (1997-07-01), Aboaf et al.
patent: 5764447 (1998-06-01), Lazzari
patent: 6018444 (2000-01-01), Beck et al.
patent: 6236537 (2001-05-01), Poorman et al.
patent: 0 690 422 (1996-01-01), None

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