Patent ID: 8427265

Claim:
A laminated inductor, comprising: a laminate constituted by multiple magnetic material layers, and coil conductors formed in a spiral pattern in the laminate, where the coil conductors have conductive patterns formed on magnetic material layers, respectively, and via hole conductors that penetrate through the magnetic material layers and electrically connect multiple conductive patterns formed thereon; wherein the magnetic material layers are layers of a magnetic material having multiple metal grains constituted by a Fe—Si-M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe) and oxide film formed on the surface of the metal grains and made of an oxide of the soft magnetic alloy, the magnetic material has bonding portions where adjacent metal grains are connected via the oxide film formed on the respective surfaces of the adjacent metal grains as well as bonding portions where metal grains are interconnected in areas where no oxide film is present, and voids where no metal grain nor oxide film is present are generated by agglomeration of the metal grains, wherein at least some of the voids are filled with a resin material.