Coil component
AssigneeTDK Corporation
InventorsHitoshi Ohkubo, Manabu Ohta, Ryo Fukuoka, Hironori Kimata
Life of this patent
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Abstract
In a coil component, a height h1 of a pedestal portion of a resin wall corresponds to the height position of a step portion. In addition, a height of a seed portion corresponds to the plating start position at a time when a winding portion of a coil is plated and grown. The plating start position and the step portion are designed to be close to each other by the height h1 of the pedestal portion and the height h2 of the seed portion satisfying 0.3≤h1/h2≤10. Accordingly, although the coil component has a configuration in which the resin wall has the step portion, the inside of the step portion is sufficiently filled with a coil conductor, and thus deterioration of characteristics is suppressed.
Claims6
A coil component comprising:
- a substrate;
- a coil having a seed portion provided on a main surface of the substrate and a plating portion covering the seed portion;
- and
- a resin body provided on the main surface of the substrate and having a plurality of resin walls, a winding portion of the coil extends between the plurality of resin walls, wherein
- each of the resin walls has a pedestal portion in contact with the main surface of the substrate and a wall portion extending from the pedestal portion in a direction away from the substrate and narrower than the pedestal portion,
- h1/h2<1 is satisfied in at least the resin wall located between the winding portions of the coil when a height of the pedestal portion of the resin wall is h1 and a height of the seed portion of the coil is h2, and
- the pedestal portion of the resin wall located between the winding portions of the coil is apart from the seed portion of the coil.
Dependencies are inferred from the claim text.