Title :
The effect of magnetic film structure on the inductance of a planar inductor
Author :
Inoue, T. ; Nishijima, K. ; Yatabe, S. ; Mizoguchi, T. ; Sato, T.
Author_Institution :
Semiconduct. Div., Toshiba Corp., Kawasaki, Japan
fDate :
7/1/1998 12:00:00 AM
Abstract :
Magnetic flux density distribution for a planar magnetic film inductor was calculated as a function of magnetic film thickness, permeability, in-plane slit width and undulation amplitude and insulator thickness which was inserted between magnetic films. It is important to choose a proper combination of magnetic film thickness, permeability and insulator thickness to design inductance and superimposed dc current characteristic of a planar inductor in which the magnetic film structure is multi-layered. Magnetic film slit width doesn´t influence on inductance. It is important to decrease undulation amplitude of a magnetic film
Keywords :
inductance; inductors; magnetic flux; magnetic multilayers; magnetic permeability; magnetic thin film devices; dc current characteristic; in-plane slit width; inductance; insulator thickness; magnetic film structure; magnetic film thickness; magnetic films; magnetic flux density distribution; multi-layered film; permeability; planar inductor; planar magnetic film inductor; undulation amplitude; Bismuth; Coils; Inductance measurement; Inductors; Insulation; Magnetic films; Magnetic flux; Magnetic flux density; Permeability; Spirals;
Journal_Title :
Magnetics, IEEE Transactions on
