Solid inductor with vitreous diffused outer layer
First Claim
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1. A solid inductor comprising:
- a magnetic material formed of a ceramic body obtained by laminating green sheets, followed by cofiring;
an inner conductor so provided as to pass through said magnetic material from one end to the other end;
a pair of outer electrodes provided in both ends of said magnetic material so as to be electrically connected to both ends of said inner conductor, respectively; and
a diffusion layer, which is formed by diffusion of a vitreous diffused material applied to the surface of said magnetic material into the magnetic material, exhibiting lower permeability than the magnetic material.
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Abstract
In 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.
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Citations
13 Claims
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1. A solid inductor comprising:
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a magnetic material formed of a ceramic body obtained by laminating green sheets, followed by cofiring; an inner conductor so provided as to pass through said magnetic material from one end to the other end; a pair of outer electrodes provided in both ends of said magnetic material so as to be electrically connected to both ends of said inner conductor, respectively; and a diffusion layer, which is formed by diffusion of a vitreous diffused material applied to the surface of said magnetic material into the magnetic material, exhibiting lower permeability than the magnetic material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification