| US 7,589,609 B2 | ||
| Multilayer inductor component | ||
| Naoki Sutoh, Tokyo (Japan); Takashi Suzuki, Tokyo (Japan); Kunio Oda, Tokyo (Japan); Yukio Takahashi, Tokyo (Japan); Kunihiko Kawasaki, Tokyo (Japan); and Hiroshi Momoi, Tokyo (Japan) | ||
| Assigned to TDK Corporation, Tokyo (Japan) | ||
| Filed on May 05, 2008, as Appl. No. 12/115,180. | ||
| Claims priority of application No. 2007-143792 (JP), filed on May 30, 2007. | ||
| Prior Publication US 2008/0296528 A1, Dec. 04, 2008 | ||
| Int. Cl. H01F 27/24 (2006.01) | ||
| U.S. Cl. 336—233 | 1 Claim |
| 1. A multilayer inductor component comprising a multilayer part having a plurality of magnetic layers laminated therein and
a conductor part arranged within the multilayer part;
wherein the magnetic layers are formed from a ferrite material and an additive;
wherein the ferrite material contains Fe2O3, NiO, CuO, and ZnO;
wherein the Fe2O3 is 30 to 45 mol %;
wherein the NiO is 45 to 58 mol %;
wherein the CuO is 6 to 10 mol %;
wherein the ZnO is 0 to 3 mol %;
wherein the additive contains CoO;
wherein the content of CoO is 0.1 to 2.5 mass % with respect to the ferrite material as a whole; and
wherein the multilayer inductor component has an impedance peak of 500 Ω or greater at an operating frequency of 1 GHz or
higher.
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