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US 2026/0302037 A1Published application
Coil component
AssigneeTDK Corporation
InventorsHokuto EDA, Kohei TAKAHASHI, Takahiro NEMOTO, Yuma USAMI, Ryota ISHIKAWA
Life of this patent
Estimating the term…
Abstract
In a coil component, because a length of an outer side surface of a winding of each planar coil portion is shorter than a length of an inner side surface, compared to a case where, for example, the outer side surface and the inner side surface have the same length, an opposing area of both windings is reduced, and stray capacitance generated between the both windings is reduced.
Claims13
A coil component, comprising:
- an element body having a pair of principal surfaces facing each other, and a first end face and a second end face connecting the pair of principal surfaces;
- an insulating substrate provided in the element body, extending parallel to the principal surface of the element body, and having a first main surface and a second main surface respectively facing the pair of principal surfaces of the element body;
- a coil assembly provided in the element body and having a first coil that includes a first coil portion spirally wound on the first main surface of the insulating substrate, a second coil portion spirally wound on the second main surface of the insulating substrate, and a first through-hole conductor penetrating the insulating substrate to electrically connect the first coil portion and the second coil portion;
- and
- a first external terminal provided on the first end face and electrically connected to an outer end portion of the first coil portion,
- wherein with respect to a length in a thickness direction of the insulating substrate, a length of an outer side surface of an outermost winding of the second coil portion is shorter than a length of an inner side surface of the outermost winding of the second coil portion.
3 more elements
A coil component, comprising:
- an element body having a pair of principal surfaces facing each other, and a first end face and a second end face connecting the pair of principal surfaces;
- an insulating substrate provided in the element body, extending parallel to the principal surface of the element body, and having a first main surface and a second main surface respectively facing the pair of principal surfaces of the element body;
- a coil assembly provided in the element body and having a first coil that includes a first coil portion spirally wound on the first main surface of the insulating substrate, a second coil portion spirally wound on the second main surface of the insulating substrate, and a first through-hole conductor penetrating the insulating substrate to electrically connect the first coil portion and the second coil portion;
- a first external terminal provided on the first end face and electrically connected to an outer end portion of the first coil;
- and
- a pair conductor provided on the second main surface of the insulating substrate adjacent to the first end face and electrically connected to the first external terminal,
- wherein with respect to a length in a thickness direction of the insulating substrate, a length of an outer side surface in an outermost winding of the second coil portion is shorter than a length of an inner side surface in the outermost winding of the second coil portion.
4 more elements
A coil component, comprising:
- an element body having a pair of principal surfaces facing each other, and a first end face and a second end face connecting the pair of principal surfaces;
- an insulating substrate provided in the element body, extending parallel to the principal surface of the element body, and having a first main surface and a second main surface respectively facing the pair of principal surfaces of the element body;
- and
- a coil assembly provided in the element body and having a first coil that includes a first coil portion spirally wound on the first main surface of the insulating substrate, a second coil portion spirally wound on the second main surface of the insulating substrate, and a first through-hole conductor penetrating the insulating substrate to electrically connect the first coil portion and the second coil portion,
- wherein at least one of the first coil portion and the second coil portion includes a first winding and a second winding adjacent to an outer peripheral side of the first winding, and
- wherein with respect to a length in a thickness direction of the insulating substrate, a length of an outer side surface in the first winding is shorter than a length of an inner side surface in the first winding.
3 more elements
Dependencies are inferred from the claim text.