Title :
Magnetic properties and corrosion resistance of Co-Fe-Ni film and its application to the thin film inductive head
Author :
Tanaka, Shinichi ; Suzuki, Fumitake ; Hosono, Kazumasa ; Oshiki, Mirsumasa ; Kakehi, Akira
Author_Institution :
Fujitsu Ltd., Kanagawa, Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
With a slight modification of the existing electroplating and annealing processes, the authors report the development of a corrosion resistant, highly permeable and high saturation magnetic flux density film. The highest saturation magnetic flux density (Bs) of the films was 19900 Gauss and highest permeability was 1600. Sample heads with Co-Fe-Ni film demonstrated significantly better overwrite performance than conventional NiFe thin film heads, as consistent with a series of finite element (FE) analysis calculations
Keywords :
annealing; cobalt alloys; coercive force; corrosion; electroplating; ferromagnetic properties of substances; iron alloys; magnetic heads; magnetic permeability; magnetic recording; magnetic thin film devices; magnetic thin films; nickel alloys; CoFeNi film; NiFe thin film head; annealing processes; coercivity; corrosion resistance; corrosion testing; electroplating; finite element analysis; high saturation magnetic flux density film; overwrite performance; permeability; permeable film; thin film inductive head; Annealing; Corrosion; Finite element methods; Gaussian processes; Magnetic films; Magnetic flux density; Magnetic heads; Magnetic properties; Permeability; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
