Composite thin film head having magnetoresistive and inductive h

Details Composite thin film head having magnetoresistive and inductive h Composite thin film head having magnetoresistive and inductive h

1996-12-09

1998-04-14

Renner, Craig A.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, G11B 539, G11B 5147

Patent

active

057399913

ABSTRACT:
A composite thin film head comprises a magnetoresistive head portion and an inductive head portion which are superposed on a substrate, the inductive head portion comprising a lower core layer disposed on one side of a gap spacer layer and adjacent to the magnetoresistive head portion, and an upper core layer disposed on the other side of the gap spacer layer. The lower core layer comprises a core portion positioned toward the upper core layer having the same width as the upper core layer in the vicinity of a medium-opposed face, and a shield portion positioned toward the magnetoresistive head portion having a larger width than the core portion in the vicinity of the medium-opposed face.

REFERENCES:
patent: 3975772 (1976-08-01), Lin
patent: 4799118 (1989-01-01), Yamada et al.
patent: 5168409 (1992-12-01), Koyama et al.
patent: 5287237 (1994-02-01), Kitada et al.
patent: 5313356 (1994-05-01), Ohkubo et al.
patent: 5438747 (1995-08-01), Krounbi et al.
patent: 5555147 (1996-09-01), Maruyama

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