Magneto resistive effect type head having a stressed insulation

Details Magneto resistive effect type head having a stressed insulation Magneto resistive effect type head having a stressed insulation

1996-11-21

1999-02-09

Evans, Jefferson

Dynamic magnetic information storage or retrieval

Head

Core

360113, G11B 531

Patent

active

058702628

ABSTRACT:
A method is disclosed for producing a magneto-resistive effect type thin film magnetic head including a thin film coil, a pair of magnetic poles and an insulation layer consisting of a thermosetting resin for electrically insulating mutually between the thin film coil and the magnetic poles. A photoresist material is used as the thermosetting resin. A thermal treatment of the thermosetting resin is conducted in an atmosphere including at least oxygen, in such a manner that a film stress of the insulation layer after thermal treatment is within a range of -10 MPa to +25 MPa.

REFERENCES:
patent: 5408373 (1995-04-01), Bajorek et al.
patent: 5536584 (1996-07-01), Sotokawa et al.
patent: 5560097 (1996-10-01), Bajhorek et al.
patent: 5570251 (1996-10-01), Shinoura et al.
patent: 5640753 (1997-06-01), Schultz et al.
patent: 5702756 (1997-12-01), McKean et al.

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