Method of manufacturing a solid inductor
AssigneeMurata Manufacturing Co., Ltd.
InventorsToshio Kawabata, Hiroyuki Takeuchi, Hisashi Katsurada, Kazutaka Nakamura, Tomoaki Ushiro
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Abstract
In A method of manufacturing a solid inductor having an inner conductor formed by passing through a magnetic, material. A vitreous diffused material is applied to the surface of the magnetic material, and the diffused material is diffused into the magnetic material by heat treatment, to form a diffusion layer exhibiting low permeability. The thickness of this diffusion layer is adjusted, thereby to make it possible to adjust the inductance value of the solid inductor as well as to improve resistance to humidity of the solid inductor.
Claims13
A method of manufacturing a solid inductor comprising the steps of:
- laminating and cofiring green sheets of a magnetic material to form a ceramic body having two ends;
- passing an inner conductor through said ceramic body from one end to the other end;
- placing a pair of outer electrodes on both ends of said ceramic body and electrically connecting said outer electrodes to respective ends of said inner conductor;
- and
- applying a vitreous material exhibiting lower permeability than the magnetic material to the surface of said magnetic material, and diffusing said vitreous material into the magnetic material, thereby forming a diffusion layer.
Dependencies are inferred from the claim text.