Patent ID: 6661328
Filing Date: 2003-12-09
Classification: H01F,Y10S,Y10T

Abstract:
A method of manufacturing a magnetic element comprising a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;Â·cm, and a coil embedded in the composite magnetic body, the method comprising:obtaining a mixture including metallic magnetic powder and thermosetting resin present in an uncured state; heating the mixture containing the metallic magnetic powder and the thermosetting resin present in the uncured state in a range between 65Â° C. and 200Â° C. granulating the mixture containing the metallic magnetic powder a the thermosetting resin; obtaining a molded body by pressure-molding the mixture to embed the coil; and curing the thermosetting resin by heating the molded body.