Coil component and electronic device
AssigneeTaiyo Yuden Co., Ltd.
InventorHirotaka Wakabayashi
Life of this patent
Estimating the term…
Abstract
A coil component includes: an element body part 10; a coil 30 embedded in the element body part 10; an external electrode 50a electrically connected to the coil 30 and provided at least on a bottom face 12 of the element body part 10 along a side 13a of the bottom face 12; and an external electrode 50b electrically connected to the coil 30 and provided at least on the bottom face 12 along a side 13b, wherein the external electrode 50a has a joining part 56a physically and electrically joined to the bottom face 12, and a non-joining part faces the bottom face 12 but is positioned away from the bottom face 12 before being mounted on a circuit board, wherein the non-joining part is positioned closer to the external electrode 50b on the bottom face 12 than is the joining part 56a.
Claims15
A coil component, comprising:
- an element body part which is formed by materials that include a magnetic material;
- a coil which is built into the element body part and formed by a conductor;
- a first external electrode which is provided at least on a first face, among all surfaces, of the element body part at a position closer to a first side edge of the first face, than to a center between the first side edge and a second side edge of the first face opposite the first side edge in a direction intersecting an axis of the coil as viewed in an axial direction of the coil,
- and which is electrically connected to the coil;
- and
- a second external electrode which is provided at least on the first face, among all surfaces, of the element body part at a position closer to the second side edge of the first face, than to the center between the first side edge and the second side edge,
- and which is electrically connected to the coil;
- wherein the first external electrode has a first joining part, which is physically and electrically joined to the first face, and a first non-joining part, which is a part other than the first joining part and entirely faces in a thickness direction the first face constituted by the magnetic material but is positioned away from the first face in a state where the coil component is not mounted on a circuit board,
- wherein the first non-joining part is positioned closer to the second external electrode on the first face than is the first joining part,
- wherein the first external electrode is formed in a manner so as to extend from the first face, via a second face that connects to the first face along the first side edge of the first face, to a fourth face opposite the first face, of the element body part;
- and
- wherein the first external electrode has a third joining part, which is physically and electrically joined to the fourth face,
- and a third non-joining part, which is a part other than the third joining part and faces the fourth face but is positioned away from the fourth face in a state where the coil component is not mounted on a circuit board,
- wherein the third non-joining part is positioned closer to the second external electrode on the fourth face than is the third joining part.
Dependencies are inferred from the claim text.