Inductor having conductive line embedded in magnetic material
An inductor includes a magnetic material containing a magnetic powder and an insulating resin, a conductive line embedded in the magnetic material, a first electrode partially exposed from the magnetic material and connected to one end of the conductive line, and a second electrode partially exposed from the magnetic material and connected to another end of the conductive line.
1. An inductor, comprising:
a magnetic material containing a magnetic powder and an insulating resin;
a conductive line embedded in the magnetic material;
a first electrode partially exposed from the magnetic material and connected to one end of the conductive line; and
a second electrode partially exposed from the magnetic material and connected to another end of the conductive line,
wherein each of the first electrode and the second electrode has a conductive protuberance projecting from a surface of the conductive line, and
wherein the protuberance is continuous and seamless with the conductive line.
2. The inductor as claimed in claim 1 , further comprising an insulating layer covering the conductive line as a coating.
3. The inductor as claimed in claim 1 , wherein the conductive line extends in a meandering manner in a plan view.
4. The inductor as claimed in claim 1 , wherein the conductive line extends straight in a plan view.
5. The inductor as claimed in claim 1 , comprising a plurality of said conductive lines embedded in the magnetic material, the conductive lines extending side by side.
6. The inductor as claimed in claim 1 , wherein the conductive line is a metal strip.
7. The inductor as claimed in claim 1 , wherein the protuberance includes a first protuberance and a second protuberance, the first protuberance being continuous and seamless with the conductive line, and the second protuberance being joined to a top of the first protuberance.
8. The inductor as claimed in claim 1 , wherein the protuberance is exposed, or projects, from a surface of the magnetic material.
9. The inductor as claimed in claim 1 , further comprising a height adding conductive member that is joined to a top of the protuberance and that increases a height from the surface of the conductive line.
10. The inductor as claimed in claim 1 , wherein the magnetic material has a cuboid shape with a first side face, a second side face opposite the first side face, and a lower face situated between the first side face and the second side face,
wherein a side face and a lower face of the first electrode are exposed at the first side face and the lower face of the magnetic material, respectively, and a side face and a lower face of the second electrode are exposed at the second side face and the lower face of the magnetic material, respectively.
11. The inductor as claimed in claim 1 , wherein the magnetic material has a cuboid shape with a first side face and a second side face opposite the first side face,
wherein a side face of the first electrode is flush with the first side face of the magnetic material, and a side face of the second electrode is flush with the second side face of the magnetic material.
12. An inductor, comprising:
a magnetic material containing a magnetic powder and an insulating resin;
a conductive line embedded in the magnetic material;
a first electrode partially exposed from the magnetic material and connected to one end of the conductive line; and
a second electrode partially exposed from the magnetic material and connected to another end of the conductive line,
wherein each of the first electrode and the second electrode has a conductive protuberance projecting from a surface of the conductive line, and
wherein the conductive line has a flat surface extending along a longitudinal extension thereof, and the protuberance is a separate conductor joined to the flat surface of the conductive line.
13. The inductor as claimed in claim 12 , further comprising an insulating layer covering the conductive line as a coating.
14. The inductor as claimed in claim 12 , wherein the conductive line extends in a meandering manner in a plan view.
15. The inductor as claimed in claim 12 , wherein the conductive line extends straight in a plan view.
16. The inductor as claimed in claim 12 , comprising a plurality of said conductive lines embedded in the magnetic material, the conductive lines extending side by side.
17. The inductor as claimed in claim 12 , wherein the conductive line is a metal strip.
18. The inductor as claimed in claim 12 , wherein the protuberance is exposed, or projects, from a surface of the magnetic material.
19. The inductor as claimed in claim 12 , further comprising a height adding conductive member that is joined to a top of the protuberance and that increases a height from the surface of the conductive line.
20. The inductor as claimed in claim 12 , wherein the magnetic material has a cuboid shape with a first side face, a second side face opposite the first side face, and a lower face situated between the first side face and the second side face,
wherein a side face and a lower face of the first electrode are exposed at the first side face and the lower face of the magnetic material, respectively, and a side face and a lower face of the second electrode are exposed at the second side face and the lower face of the magnetic material, respectively.
21. The inductor as claimed in claim 12 , wherein the magnetic material has a cuboid shape with a first side face and a second side face opposite the first side face,
wherein a side face of the first electrode is flush with the first side face of the magnetic material, and a side face of the second electrode is flush with the second side face of the magnetic material.