Coil element
First Claim
1. A coil element, comprising:
- a first magnetic substrate;
a composite member disposed on the first magnetic substrate, said composite member including coil patterns and insulating layers being alternately arranged, each of the insulating layers including at least one of a plurality of holes disposed at an approximate central portion thereof and a plurality of cutout portions disposed at peripheral edges thereof;
a second magnetic substrate disposed on the composite member;
an adhesive material extending between the first magnetic substrate and the second magnetic substrate and located within the at least one of the plurality of holes disposed at an approximate central portion of each of the insulating layers and the cutout portions disposed at peripheral edges of each of the insulating layers, the adhesive material being arranged to completely fill the at least one of the plurality of holes of the insulating layers such that only the adhesive material is located in the at least one of the plurality of holes of the insulating layers.
1 Assignment
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Accused Products
Abstract
A coil element includes a composite member located on a first magnetic substrate, a second magnetic substrate disposed on the composite member and an adhesive layer located therebetween. The composite member includes coil patterns and insulating layers. The adhesive layer is composed of a material having a relative magnetic permeability of more than about 1.0. Alternatively, the insulating layers, excluding a portion which surrounds an overlapping region of coil patterns, are composed of a material having a relative magnetic permeability of more than about 1.0. Alternatively, the insulating layers are provided with holes in the approximate central regions of the insulating layers surrounded by the coil patterns, and the holes are filled with the material of the adhesive layer.
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Citations
28 Claims
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1. A coil element, comprising:
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a first magnetic substrate;
a composite member disposed on the first magnetic substrate, said composite member including coil patterns and insulating layers being alternately arranged, each of the insulating layers including at least one of a plurality of holes disposed at an approximate central portion thereof and a plurality of cutout portions disposed at peripheral edges thereof;
a second magnetic substrate disposed on the composite member;
an adhesive material extending between the first magnetic substrate and the second magnetic substrate and located within the at least one of the plurality of holes disposed at an approximate central portion of each of the insulating layers and the cutout portions disposed at peripheral edges of each of the insulating layers, the adhesive material being arranged to completely fill the at least one of the plurality of holes of the insulating layers such that only the adhesive material is located in the at least one of the plurality of holes of the insulating layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A coil element, comprising:
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a first magnetic substrate;
a composite member disposed on the first magnetic substrate, said composite member including coil patterns and insulating layers being alternately arranged, each of the insulating layers including a hole formed therein;
a second magnetic substrate disposed on the composite member; and
an adhesive material extending between the first magnetic substrate and the second magnetic substrate and arranged so as to surround each of the coil patterns such that only the adhesive material is disposed in the hole of each of the insulating layers. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A coil element, comprising:
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a first magnetic substrate;
a composite member disposed on the first magnetic substrate, said composite member including coil patterns and insulating layers being alternately arranged, each of the insulating layers including a hole disposed at an approximate central portion thereof and a plurality of cutout portions disposed at peripheral edges thereof;
a second magnetic substrate disposed on the composite member;
an adhesive material extending between the first magnetic substrate and the second magnetic substrate and located within the hole disposed at an approximate central portion of each of the insulating layers, the adhesive material being arranged so as to surround each of the coil patterns and such that only the adhesive material is located in the hole and the cutout portions of each of the insulating layers. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A coil element, comprising:
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a first magnetic substrate;
a composite member disposed on the first magnetic substrate, said composite member including coil patterns and insulating layers being alternately arranged;
a second magnetic substrate disposed on the composite member;
wherein each of the insulating layers has a hole connecting the first magnetic substrate and the second magnetic substrate, the hole is disposed at a portion enclosed by the coil patterns, an adhesive comprising a magnetic material having a relative magnetic permeability of more than 1.0 is arranged to fill the hole of each of the insulating layers such that only the adhesive is located in the hole of each of the insulating layers, and the first magnetic substrate and the second magnetic substrate are bonded by the adhesive.
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Specification