Thin film magnetic heads with thermally crosslinked insulation

Details Thin film magnetic heads with thermally crosslinked insulation Thin film magnetic heads with thermally crosslinked insulation

1988-04-18

1989-10-17

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 516

Patent

active

048751243

ABSTRACT:
A thin film magnetic head is provided in which the electrical insulation surrounding the conductive coil comprises a photosensitive resin which has been crosslinked by a thermally activated crosslinking agent or promotor. The addition of the thermally activated crosslinking agent or promotor greatly reduces both the cure temperature and cure time and results in enhanced dimensional stability without any deleterious effects.

REFERENCES:
patent: 4219854 (1980-08-01), Church et al.
patent: 4516180 (1985-05-01), Narishige et al.
patent: 4596739 (1986-06-01), Piltingsrud et al.
patent: 4652954 (1987-03-01), Church
Cortellino et al., "Photoresist for Use in Silicon Nitride Etching Baths", IBM Technical Disclosure Bulletin, vol. 14, No. 8, Jan. 1972.
W. E. Feely, "Microplastic Structures", SPIE, vol. 631, Advances in Resist Technology and Processing III, (1986).

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