Giant magnetoresistive head with electron cured insulator

Details Giant magnetoresistive head with electron cured insulator Giant magnetoresistive head with electron cured insulator

1998-08-03

1999-08-10

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

059368136

ABSTRACT:
A process for making a magnetic head including the steps of forming a first pole piece comprising magnetic material and depositing a gap-forming layer comprising nonmagnetic material over the first pole piece. A first patterned layer of uncrosslinked polymer is formed on the gap-forming layer. The first patterned layer is cured by electron irradiation at a temperature less than about 175 C. to crosslink the polymer. A conductive coil is formed on the cured first patterned layer and a second patterned layer of uncrosslinked polymer is formed over the conductive coil. The second patterned layer is cured by electron irradiation at a temperature less than about 175 C. to crosslink the polymer. A second pole piece layer of magnetic material is formed to complete the magnetic head.

REFERENCES:
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patent: 5003178 (1991-03-01), Livesay
patent: 5122440 (1992-06-01), Chien
patent: 5180653 (1993-01-01), Miyabe
patent: 5270895 (1993-12-01), Ruigrok et al.
patent: 5557492 (1996-09-01), Gill et al.
patent: 5580602 (1996-12-01), McKean
patent: 5793579 (1998-08-01), Yamamoto et al.
Livesay, W.R. et al., Electron beam hardening of photoresist, SPIE vol. 1925 pp. 4126-436 (1993).

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