High magnetic moment thin film head core

Details High magnetic moment thin film head core High magnetic moment thin film head core

1992-09-14

1994-12-13

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Utilizing magnet or magnetic field during coating

205119, 205122, 205176, 205184, 205255, C25D 500

Patent

active

053726987

ABSTRACT:
A thin film magnetic read/write head has a copper iron boron core. Cobalt, iron and boron are included in the electroplating bath used to form the pole pieces of the thin film magnetic head. Following exposure to a rotating magnetic field, the pole pieces have high saturation magnetization, low coercivity, low anisotropy and large permeability.

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Kouichi Nishioka et al., Magnetic Properties of Sputtered Co-Ni-Fe-Pd Films for Thin-Film Heads, May 1989, IEEE Transactions on Magnetics, vol. 25, No. 3, pp. 2602-2606.

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