Characteristic adjustment method for inductor and variable inductor
AssigneeOki Electric Industry Co., Ltd.
InventorYukihiro Kita
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Abstract
The invention is applicable to a characteristic adjustment method for an inductor formed by laminating a plurality of coils and electrically connecting these coils by a through hole, and is aimed at providing a method which can easily adjust the characteristic of the inductor with a simple configuration. The method comprises determining a part of the coil in an outermost layer as an adjustment area, and not forming the through hole below the adjustment area, and removing at least a part of the adjustment area after the coil in the outermost layer is formed.
Claims7
A characteristic adjustment method for an inductor formed by laminating a plurality of coils and electrically connecting these coils by a through hole, comprising:
- determining a part of the coil in an outermost layer as an adjustment area, and not forming said through hole below said adjustment area;
- and
- removing at least a part of said adjustment area after the coil in said outermost layer is formed.
A variable inductor comprising:
- a first spiral coil made of a conductive material;
- a second spiral coil made of a conductive material;
- an insulating layer interposed between said first and second coils;
- and
- a through hole formed in said insulating layer for electrically connecting said first and second coils, wherein
- said first coil has an adjustment area which defines an area to be removed for adjusting the characteristic of the inductor after said first coil has been formed, and
- said through hole is not formed below said adjustment area.
Dependencies are inferred from the claim text.