Back to results
US 10,381,152 B2Granted
Coil component and coil-component-equipped mounting substrate
AssigneeMurata Manufacturing Co., Ltd.
InventorRyota Hashimoto
Life of this patent
Estimating the term…
Abstract
A coil component has an outer electrode include a bottom-surface electrode portion disposed along a bottom surface of a component body and an end-surface electrode portion disposed along an end surface of the component body so as to be continuous with the bottom-surface electrode portion. The adhesive strength of the bottom-surface electrode portion with respect to the component body is lower than that of the end-surface electrode portion with respect to the component body.
Claims20
A coil component comprising:
- a component body that at least has a bottom surface facing a mounting surface and an end surface extending in a direction away from the mounting surface;
- and
- an outer electrode that is formed on an outer surface of the component body, the outer electrode including a bottom-surface electrode portion that is disposed along the bottom surface of the component body and an end-surface electrode portion that is disposed along the end surface of the component body so as to be continuous with the bottom-surface electrode portion, and the bottom-surface electrode portion has a different material composition than the end-surface electrode portion which causes the bottom-surface electrode portion to have an adhesive strength with respect to the component body that is lower than an adhesive strength of the end-surface electrode portion with respect to the component body.
A coil component comprising:
- a component body that at least has a bottom surface facing a mounting surface and an end surface extending in a direction away from the mounting surface;
- and
- an outer electrode that is formed on an outer surface of the component body, the outer electrode including a bottom-surface electrode portion that is disposed along the bottom surface of the component body and an end-surface electrode portion that is disposed along the end surface of the component body so as to be continuous with the bottom-surface electrode portion, and an adhesive strength of the bottom-surface electrode portion with respect to the component body is lower than an adhesive strength of the end-surface electrode portion with respect to the component body, wherein
- the component body includes a core including a winding core portion, a first flange portion, which is formed at a first end of the winding core portion, and a second flange portion, which is formed at a second end of the winding core portion that is opposite to the first end of the winding core portion, and a wire that is wound around the winding core portion,
- the bottom surface includes flange-portion bottom surfaces of the first and second flange portions that face the mounting surface, and the end surface include flange-portion end surfaces of the first and second flange portions that are located on a side opposite to a side on which the winding core portion is present,
- the outer electrode is electrically connected to an end of the wire and is formed so as to extend from the flange-portion bottom surface to the flange-portion end surface of one of the first and second flange portions,
- the flange-portion bottom surface has a low resistance portion having an electrical resistance lower than an electrical resistance of another portion of the core, and
- the bottom-surface electrode portion is an electroplated film precipitated on the low resistance portion.
5 more elements
A coil component comprising:
- a component body that at least has a bottom surface facing a mounting surface and an end surface extending in a direction away from the mounting surface;
- and
- an outer electrode that is formed on an outer surface of the component body, the outer electrode including a bottom-surface electrode portion that is disposed along the bottom surface of the component body and an end-surface electrode portion that is disposed along the end surface of the component body so as to be continuous with the bottom-surface electrode portion, and an adhesive strength of the bottom-surface electrode portion with respect to the component body is lower than an adhesive strength of the end-surface electrode portion with respect to the component body, wherein
- the component body includes a core including a winding core portion, a first flange portion, which is formed at a first end of the winding core portion, and a second flange portion, which is formed at a second end of the winding core portion that is opposite to the first end of the winding core portion, and a wire that is wound around the winding core portion,
- the bottom surface includes flange-portion bottom surfaces of the first and second flange portions that face the mounting surface, and the end surface include flange-portion end surfaces of the first and second flange portions that are located on a side opposite to a side on which the winding core portion is present,
- the outer electrode is electrically connected to an end of the wire and is formed so as to extend from the flange-portion bottom surface to the flange-portion end surface of one of the first and second flange portions, and
- the bottom-surface electrode portion is made of a resin that contains metal powder and that does not contain glass.
4 more elements
Dependencies are inferred from the claim text.