COIL COMPONENT

摘要

In an embodiment, a coil component includes a magnetic body, and an internal conductor 21 having a center axis and formed in a spiral shape; wherein the internal conductor 21 is embedded in the magnetic body; in a cross sectional view of a plane that includes the center axis extending in the vertical direction, wherein a conductor region part 11 positioned between the adjacent windings of the spiral shape has a higher oxygen content than that of a core part 12 including the center axis and positioned on the inner side of the windings of the spiral shape. the magnetic body is constituted by iron-based soft magnetic grains and oxide film of at least one type of element that oxidizes more easily than iron, which oxide film bonds at least partly the iron-based soft magnetic grains.

主权项

1. A coil component comprising:
a magnetic body, and an internal conductor having a center axis and formed in a spiral shape, wherein; the internal conductor is embedded in the magnetic body; in a cross sectional view of a plane that includes the center axis extending in a vertical direction, the magnetic body can be divided into: (1) a conductor region part positioned between adjacent windings of the spiral shape; (2) a core part including the center axis and positioned on an inner side of the windings of the spiral shape; (3) cover parts positioned below a bottom edge, and above a top edge, of the spiral shape; and (4) a side part positioned on an exterior of the windings of the spiral shape; the magnetic body is constituted by iron-based soft magnetic grains and oxide film of at least one type of element that oxidizes more easily than iron, where bonding of the iron-based soft magnetic grains positioned adjacent to each other is formed at least partly by the oxide film; and an oxygen content of the conductor region part of the magnetic body is higher than that of the core part.