PURPOSE: To realize an amorphous soft magnetic lamination film of good high- frequency magnetic characteristics and handling property by laminating a plurality of amorphous soft magnetic layers formed by electrolysis or nonelectrolysis and oxide layers formed by electrolysis oxidation method alternately.
CONSTITUTION: Water solution containing each element of ferrous chloride, cobalt sulfate, boric acid and phosphorous acid is used as electrolyte, a stainless steel is used as an electrode, and electrolytic deposition is performed. A deposit layer 1 has a film thickness of several μm and amorphous property is recognized through measurement of X-ray diffraction. Then, anode oxidation is carried out with H2SO4 solution on Ag/AgCl basis, and an oxide insulation layer 2 whose surface color is changed to thin dark brown is formed. After the operation is repeated six times, the deposited layers are peeled off from an electrode.
SAKO YOSHIHIRO
KUSHI KENJI
