Laminated inductor
AssigneeTaiyo Yuden Co., Ltd.
InventorsTomomi Kobayashi, Hitoshi Matsuura, Takayuki Arai, Masahiro Hachiya, Kenji Otake
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Abstract
A laminated inductor having a laminate structure constituted by magnetic layers and internal conductive wire-forming layers, wherein the magnetic layer is formed by soft magnetic alloy grains, the internal conductive wire-forming layer has an internal conductive wire and a reverse pattern portion around it, and the reverse pattern portion is formed by soft magnetic alloy grains whose constituent elements are of the same types as those of, and whose average grain size is greater than that of, the soft magnetic alloy grains constituting the magnetic layer.
Claims11
A laminated inductor having a laminate structure comprised of a magnetic layer and an internal conductive wire-forming layer, wherein
- the magnetic layer is formed by soft magnetic alloy grains adjacent to each other,
- the internal conductive wire-forming layer comprises:
- an internal conductive wire formed in a pattern on and in contact with the magnetic layer;
- and
- a reverse pattern portion formed in a pattern around and in contact with the internal conductive wire and on and in contact with the magnetic layer, said pattern of the reverse pattern portion being reverse to the pattern of the internal conductive wire, and
- the reverse pattern portion is formed by soft magnetic alloy grains adjacent to each other, whose constituent elements are substantially the same as those of, and whose average grain size is at least 1.3 times greater than that of, the soft magnetic alloy grains constituting the magnetic layer.
Dependencies are inferred from the claim text.