Patent ID: 7804389

Claim:
A chip-type inductor, comprising: a magnetic material body including an internal magnetic material, external magnetic materials arranged to be opposed to the opposite lateral sides of the internal magnetic material with a predetermined space, and bottom and top magnetic material provided at the top and bottom surfaces of the internal and external magnetic materials to be connected with the internal and external magnetic materials; a non-magnetic material filling the space between the internal and external magnetic materials in such a manner that the non-magnetic material cooperates with the internal and external magnetic material to form a single layer; and a conductive pattern formed in the non-magnetic material so as to surround the internal magnetic material a plurality of times, wherein, in the magnetic material body, the internal magnetic material and the external magnetic materials are opposed to the opposite lateral sides of the internal magnetic material form a magnetic path, along which magnetic flux of the magnetic field produced by current flowing along the conductive current flows, and a flow cross-section area for the magnetic flux in the internal magnetic material is at least substantially equal to a sum of flow cross-section areas in the external magnetic materials, wherein the flow cross-section area for magnetic flux in each of the top and bottom magnetic material is substantially equal to a sum of the flow cross-section areas in the external magnetic materials, wherein the internal magnetic material is formed with internal projections at opposite ends thereof, the internal projections respectively projecting toward the external magnetic materials, wherein the external magnetic materials are formed with external projections that project toward the internal magnetic material, the external projections located at middle areas of lateral sides of the external magnetic materials at areas that are opposed to the internal magnetic material, and wherein the flow cross-section area for magnetic fluxes in the internal magnetic material is formed in substantially an “I” shape.