Patent ID: 6181232
Filing Date: 2001-01-30
Classification: H01F

Abstract:
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.