Ultra high saturation moment soft magnetic thin film

Details Ultra high saturation moment soft magnetic thin film Ultra high saturation moment soft magnetic thin film

2007-03-20

2007-03-20

Sheehan, John P. (Department: 1742)

Stock material or miscellaneous articles

Magnetic recording component or stock

Magnetic head

C148S312000, C148S311000

Reexamination Certificate

active

10909529

ABSTRACT:
A plated magnetic thin film of high saturation magnetization and low coercivity having the general form Co100-a-bFeaMb, where M can be Mo, Cr, W, Ni or Rh, which is suitable for use in magnetic recording heads that write on narrow trackwidth, high coercivity media. The plating method that produces the alloy includes four current application processes: direct current, pulsed current, pulse reversed current and conditioned pulse reversed current.

REFERENCES:
patent: 6120918 (2000-09-01), Osaka et al.
patent: 6538845 (2003-03-01), Watanabe et al.
Bozorth, “Ferromagnetism”, IEEE Press, 1993, pp. 190-209.
Lowenheim, Frederick, Electroplating, 1978, pp. 426-429.
“Atlas of Electrochemical Equilibria in Aqueous Solutions”, by Marc Pourbaix, Trans. from the French by J.A. Franklin, Nat'l Assoc. of Corrosion Eng., Houston, TX, USA, CEBELCOR, Brussels, p. 2.
Modern Electroplating, Fourth Ed., Edited by Schlesinger et al., A Wiley-Interscience Publication, John Wiley & Sons Inc., NY, Ch. 13, pp. 555-583.

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