Inductor component

Patent metadata

Field	Value
Publication number	US-11742127-B2
Application number	US-202016943134-A
Country	US
Kind code	B2
Filing date	Jul 30, 2020
Priority date	Aug 27, 2019
Publication date	Aug 29, 2023
Grant date	Aug 29, 2023

Abstract

An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.

First claim

What is claimed is:

1. An inductor component, comprising:
a base body;
a first coil line and a second coil line, each being disposed in the base body and parallel to a first main surface of the base body, the first and second coil lines being a pair of coil lines in a same inductor;
a first substantially columnar line and a second substantially columnar line, each being buried in the base body, having an end face exposed at a first main surface of the base body, and being electrically connected to the first coil line; and
a third substantially columnar line and a fourth substantially columnar line, each being buried in the base body, having an end face exposed at the first main surface of the base body, and being electrically connected to the second coil line,
wherein the first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line,
a minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line, the first portion of the first coil line being located between the first substantially columnar line and the second substantially columnar line when viewed from a direction perpendicular to the first main surface, the second portion of the second coil line being located between the third substantially columnar line and the fourth substantially columnar line when viewed from the direction perpendicular to the first main surface, and
the first and second coil lines curve away from each other beginning at the end of their respective straight portions which extend from the first through fourth substantially columnar lines.

2. The inductor component according to claim 1 , wherein
the minimum distance X1 is about 0.8 or less times the minimum distance Y.

3. The inductor component according to claim 1 , wherein
a distance Ly where the first portion of the first coil line and the second portion of the second coil line arranged side by side with the minimum distance Y maintained therebetween is longer than a distance L1 where the first substantially columnar line and the third substantially columnar line arranged side by side with the minimum distance X1 maintained therebetween.

4. The inductor component according to claim 3 , wherein
the distance Ly is about five or more times the distance L1.

5. The inductor component according to claim 1 , wherein
the base body includes a magnetic layer composed of a resin containing a magnetic metal powder at least between the first portion of the first coil line and the second portion of the second coil line.

6. The inductor component according to claim 1 , wherein
the base body includes an insulating layer containing no magnetic material between the first portion of the first coil line and the second portion of the second coil line.

7. The inductor component according to claim 1 , wherein
a minimum distance X2 between the second substantially columnar line and the fourth substantially columnar line is shorter than the minimum distance Y between the first portion of the first coil line and the second portion of the second coil line.

8. The inductor component according to claim 1 , wherein
each of the first coil line and the second coil line contains sulfur atoms or chlorine atoms in an amount of from about 0.1 atom % to about 1 atom %.

9. The inductor component according to claim 1 , wherein
each of the first substantially columnar line, the second substantially columnar line, the third substantially columnar line, and the fourth substantially columnar line extends in a direction perpendicular to the first main surface.

10. The inductor component according to claim 2 , wherein
a distance Ly where the first portion of the first coil line and the second portion of the second coil line arranged side by side with the minimum distance Y maintained therebetween is longer than a distance L1 where the first substantially columnar line and the third substantially columnar line arranged side by side with the minimum distance X1 maintained therebetween.

11. The inductor component according to claim 2 , wherein
the base body includes a magnetic layer composed of a resin containing a magnetic metal powder at least between the first portion of the first coil line and the second portion of the second coil line.

12. The inductor component according to claim 3 , wherein
the base body includes a magnetic layer composed of a resin containing a magnetic metal powder at least between the first portion of the first coil line and the second portion of the second coil line.

13. The inductor component according to claim 2 , wherein
the base body includes an insulating layer containing no magnetic material between the first portion of the first coil line and the second portion of the second coil line.

14. The inductor component according to claim 3 , wherein
the base body includes an insulating layer containing no magnetic material between the first portion of the first coil line and the second portion of the second coil line.

15. The inductor component according to claim 2 , wherein
a minimum distance X2 between the second substantially columnar line and the fourth substantially columnar line is shorter than the minimum distance Y between the first portion of the first coil line and the second portion of the second coil line.

16. The inductor component according to claim 3 , wherein
a minimum distance X2 between the second substantially columnar line and the fourth substantially columnar line is shorter than the minimum distance Y between the first portion of the first coil line and the second portion of the second coil line.

17. The inductor component according to claim 2 , wherein
each of the first coil line and the second coil line contains sulfur atoms or chlorine atoms in an amount of from about 0.1 atom % to about 1 atom %.

18. The inductor component according to claim 3 , wherein
each of the first coil line and the second coil line contains sulfur atoms or chlorine atoms in an amount of from about 0.1 atom % to about 1 atom %.

19. The inductor component according to claim 2 , wherein
each of the first substantially columnar line, the second substantially columnar line, the third substantially columnar line, and the fourth substantially columnar line extends in a direction perpendicular to the first main surface.

Assignees

• Murata Manufacturing Co

Inventors

• Miyake Isamu
• Hirai Shinya
• Hamada Akinori
• Tominaga Ryuichiro
• Yamaguchi Koichi

Classifications

• H01F17/0013 Primary

  with stacked layers · CPC title

• H01F17/04 Primary

  with magnetic core · CPC title

• H01F27/292

  Surface mounted devices · CPC title

• H01F27/32

  Insulating of coils, windings, or parts thereof · CPC title

• H01F2017/048

  with encapsulating core, e.g. made of resin and magnetic powder · CPC title