Abstract: A mounting substrate configured to mount a functional element thereon is provided. The mounting substrate includes an insulating base having a flat surface portion and a bank portion protruding from the flat surface portion and dividing the flat surface portion into a plurality of regions; and a conductor layer configured to electrically connect the functional element thereto. The conductor layer is adhered from the flat surface portion to a side surface of the bank portion on the base, and the regions divided by the bank portion are filled with the conductor layer.

Abstract: According to one embodiment of the present invention, a laminate structure comprises a laminate including a first substrate and a second substrate which is overlapped with the first substrate; and an exterior frame which surrounds a side surface of the laminate, and covers a region of both main surfaces of the laminate. Both of the first substrate and the second substrate have a through hole which is positioned at the region of the both main surfaces of the laminate. The exterior frame comprises a material which has lower elastic modulus than the laminate, and portions of the exterior frame extend into the through holes.

Abstract: The present invention provides a ferrite core which has a structure in that plating is prevented from elongating, which can maintain insulation resistance between electrodes and can prevent short-circuit between a conductor wire and the electrode without damaging adhesion properties while mounted and, moreover, which can stabilize a Q value (loss characteristic) of a product. The ferrite core includes a wound core and flanges integrally formed at both ends of the wound core, and each of the flanges includes a plurality of legs provided so as to rise from one surface of the wound core and having a top surface to be formed with electrode, and each leg is tapered off toward the top surface and an vertical corner portion formed between adjacent side faces thereof has a curved surface.

Abstract: The present invention provides a ferrite core which has a structure in that plating is prevented from elongating, which can maintain insulation resistance between electrodes and can prevent short-circuit between a conductor wire and the electrode without damaging adhesion properties while mounted and, moreover, which can stabilize a Q value (loss characteristic) of a product. The ferrite core includes a wound core and flanges integrally formed at both ends of the wound core, and each of the flanges includes a plurality of legs provided so as to rise from one surface of the wound core and having a top surface to be formed with electrode, and each leg is tapered off toward the top surface and an vertical corner portion formed between adjacent side faces thereof has a curved surface.