Magnetic head having an insulating layer comprised of an...

Details Magnetic head having an insulating layer comprised of an... Magnetic head having an insulating layer comprised of an...

2004-11-09

2009-06-30

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Coil

C360S123290, C360S123500

Reexamination Certificate

active

07554763

ABSTRACT:
A magnetic head includes a plurality of coil elements disposed in a space defined by a lower core layer, a pole layer, and a back gap layer. A coil insulator fills the space so as to cover the coil elements. The top face of the pole layer, the top face of the coil insulator, the top faces of the coil elements, and the top face of the back gap layer form a planarized plane. The coil elements are disposed on a recess formed on the lower core layer. The bottom faces of the coil elements are disposed at substantially the same height as the top face of the lower core layer. The top faces of the coil elements lie in the planarized plane.

REFERENCES:
patent: 5969911 (1999-10-01), Hikami et al.
patent: 6353511 (2002-03-01), Shi et al.
patent: 6490127 (2002-12-01), Sasaki
patent: 7047625 (2006-05-01), Han et al.
patent: 7130153 (2006-10-01), Shen et al.
patent: 05-242429 (1993-09-01), None
patent: 2000-357307 (2000-12-01), None
patent: 2001-76320 (2001-03-01), None
patent: 2001-195707 (2001-07-01), None
patent: 2002-25009 (2002-01-01), None
Office Action issued in corresponding Japanese Patent Application No. 2003-384427; issued Nov. 13, 2007.
Office Action issued in corresponding Japanese Patent Application No. 2003-384427; issued Aug. 19, 2008.

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