Coil component
AssigneeTDK Corporation
InventorsYusuke Nagai, Kazuhiro Ebina, Kunihiko Kawasaki, Shinichi Kondo, Yuya Ishima, Shinichi Sato, Kosuke Ito
Life of this patent
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Abstract
A coil component includes: an element body; a coil including a plurality of coil conductors disposed in the element body and electrically connected to each other; an external electrode disposed on the element body; and a connection conductor that connects the coil and the external electrode. The connection conductor has an end portion exposed from an outer surface of the element body and connected to the external electrode. The end portion has a shape extending outward over an entire circumference.
Claims10
A coil component comprising:
- an element body;
- a coil including a plurality of coil conductors disposed in the element body, and electrically connected to each other, and laminated such that at least parts of the coil conductors overlap each other when viewed from a lamination direction;
- an external electrode disposed on the element body;
- and
- a connection conductor that connects the coil and the external electrode,
- wherein the connection conductor has an end portion exposed from an outer surface of the element body and connected to the external electrode,
- the end portion has a shape protruding outward with respect to other parts of the connection conductor over an entire circumference of the end portion, and
- the external electrode and the connection conductor are made of different materials from each other.
A coil component comprising:
- an element body;
- a coil including a plurality of coil conductors disposed in the element body, and electrically connected to each other, and laminated such that at least parts of the coil conductors overlap each other when viewed from a lamination direction;
- an external electrode disposed on the element body;
- and
- a connection conductor that connects the coil and the external electrode,
- wherein the connection conductor has an end portion exposed from an outer surface of the element body and connected to the external electrode,
- an entire region of the end portion has a shape in which a cross-sectional area of the end portion uniformly and monotonically increases toward the external electrode, and
- the external electrode and the connection conductor are made of different materials from each other.
A coil component comprising:
- an element body;
- a coil including a plurality of coil conductors disposed in the element body, and electrically connected to each other, and laminated such that at least parts of the coil conductors overlap each other when viewed from a lamination direction;
- an external electrode disposed on the element body;
- and
- a connection conductor that connects the coil and the external electrode,
- wherein the element body includes a plurality of element body layers laminated in a first direction,
- each of the plurality of element body layers includes a plurality of soft magnetic metal particles,
- the connection conductor has an end portion exposed from an outer surface of the element body and connected to the external electrode, the end portion having a shape protruding outward with respect to other parts of the connection conductor over an entire circumference of the end portion,
- a length of the end portion in the first direction is longer than a length of each of the plurality of coil conductors in the first direction, and
- two or more soft magnetic metal particles are disposed along the first direction between a coil conductor of the plurality of coil conductors and the connection conductor that are adjacent to each other in the first direction.
Dependencies are inferred from the claim text.