Capacitor wire and electronic device including the same

Patent metadata

Field	Value
Publication number	US-12451291-B2
Application number	US-202217940268-A
Country	US
Kind code	B2
Filing date	Sep 8, 2022
Priority date	Jan 28, 2022
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

A capacitor wire includes a core electrode line provided in the form of a wire, an outer electrode line covering at least a portion of the core electrode line, and a dielectric line interposed between the core electrode line and the outer electrode line. The outer electrode line comprises material having a melting point lower than material of the core electrode line.

First claim

What is claimed is:

1. A capacitor wire, comprising:
a core electrode line having a wire shape;
an outer electrode line covering at least a portion of the core electrode line; and
a dielectric line interposed between the core electrode line and the outer electrode line,
wherein the outer electrode line comprises material having a melting point lower than a melting point of material of the core electrode line,
wherein an end portion of at least one of the core electrode line and the dielectric line is not covered with the outer electrode line and is exposed to an outside,
wherein the outer electrode line has an end portion adjacent to the end portion of the core electrode line, and has a thickness measured from an interface between the outer electrode line and the dielectric line, and
wherein the thickness of the end portion of the outer electrode line is larger than a thickness of the outer electrode line.

2. The capacitor wire of claim 1 ,
wherein the core electrode line comprises a first metal, and
wherein the outer electrode line comprises a second metal different from the first metal.

3. The capacitor wire of claim 1 , wherein the dielectric line comprises a ceramic material.

4. The capacitor wire of claim 1 ,
wherein the dielectric line encloses an outer circumference surface of the core electrode line, and
wherein the outer electrode line encloses an outer circumference surface of the dielectric line.

5. The capacitor wire of claim 4 , wherein the end portion of the core electrode line has a ball shape.

6. The capacitor wire of claim 4 ,
wherein the end portion of the outer electrode line has a ring shape enclosing the outer circumference surface of the dielectric line.

7. The capacitor wire of claim 1 ,
wherein the core electrode line has a first surface and a second surface, which are opposite to each other, and
wherein the dielectric line and the outer electrode line are sequentially stacked on the first surface of the core electrode line.

8. The capacitor wire of claim 7 ,
wherein the dielectric line and the outer electrode line are a first dielectric line and a first outer electrode line, respectively,
wherein the capacitor wire further comprises a second dielectric line and second outer electrode lines, which are sequentially stacked on the second surface of the core electrode line, and
wherein the second dielectric line is interposed between the core electrode line and the second outer electrode line.

9. The capacitor wire of claim 1 , further comprising:
an inner electrode line interposed between the core electrode line and the outer electrode line,
wherein the dielectric line comprises:
a first dielectric line interposed between the core electrode line and the inner electrode line; and
a second dielectric line interposed between the inner electrode line and the outer electrode line.

10. The capacitor wire of claim 9 , wherein the inner electrode line is electrically disconnected from the core electrode line and the outer electrode line by the dielectric line.

11. The capacitor wire of claim 9 , wherein the end portion of the core electrode line is not covered with the dielectric line, the inner electrode line, and the outer electrode line, and is exposed to the outside.

12. The capacitor wire of claim 11 , wherein the second dielectric line covers an end portion of the inner electrode line and is in contact with the first dielectric line.

13. The capacitor wire of claim 12 ,
wherein the end portion of the outer electrode line is adjacent to the end portion of the core electrode line, and
wherein the end portion of the outer electrode line covers an end portion of the dielectric line and is in contact with the core electrode line.

14. A capacitor wire, comprising:
a core electrode line having a wire shape;
an outer electrode line covering at least a portion of the core electrode line and extending in a length direction of the core electrode line;
a dielectric line interposed between the core electrode line and the outer electrode line and extended in the length direction of the core electrode line; and
a passivation line covering the outer electrode line and extending in the length direction of the core electrode line,
wherein the outer electrode line is interposed between the dielectric line and the passivation line,
wherein an end portion of at least one of the core electrode line and the dielectric line is not covered with the outer electrode line and the passivation line and is exposed to an outside,
wherein the outer electrode line has an end portion, which is adjacent to the end portion of the core electrode line, and has a thickness measured from an interface between the outer electrode line and the dielectric line, and
wherein the thickness of the end portion of the outer electrode line is larger than a thickness of the outer electrode line.

15. The capacitor wire of claim 14 ,
wherein the core electrode line comprises a metallic material, and
wherein the outer electrode line comprises a metal alloy having a melting point lower than a melting point of the metallic material of the core electrode line.

16. A capacitor wire, comprising:
a core electrode line having a wire shape and including an end portion;
a dielectric line covering at least a portion of the core electrode line and including an end portion adjacent to the end portion of the core electrode line; and
an outer electrode line on the dielectric line and including an end portion adjacent to the end portion of the dielectric line,
wherein the outer electrode line comprises material having a melting point lower than a melting point of material of the core electrode line,
wherein the end portion of the dielectric line is not covered with the outer electrode line and is exposed to an outside,
wherein the end portion of the outer electrode line has a thickness measured from an outer surface of the dielectric line, and
wherein the thickness of the end portion of the outer electrode line is larger than a thickness of the outer electrode line.

17. The capacitor wire of claim 16 ,
wherein the dielectric line encloses an outer circumference surface of the core electrode line, and
wherein the outer electrode line encloses an outer circumference surface of the dielectric line.

18. The capacitor wire of claim 16 , wherein the end portion of the core electrode line has a ball shape.

19. The capacitor wire of claim 16 , further comprising:
an inner electrode line interposed between the core electrode line and the outer electrode line,
wherein the dielectric line comprises:
a first dielectric line interposed between the core electrode line and the inner electrode line; and
a second dielectric line interposed between the inner electrode line and the outer electrode line.

20. The capacitor wire of claim 16 ,
wherein the core electrode line has a first surface and a second surface, which are opposite to each other, and
wherein the dielectric line and the outer electrode line are sequentially stacked on the first surface of the core electrode line.

21. The capacitor wire of claim 20 ,
wherein the dielectric line and the outer electrode line are a first dielectric line and a first outer electrode line, respectively,
wherein the capacitor wire further comprises a second dielectric line and second outer electrode lines, which are sequentially stacked on the second surface of the core electrode line, and
wherein the second dielectric line is interposed

Assignees

• Samsung Electronics Co Ltd

Inventors

• Park Soojae

Classifications

• H10W90/759

  between a chip and a laterally-adjacent discrete passive device · CPC title

• H10W90/739

  between a chip and a laterally-adjacent discrete passive devices · CPC title

• H10W90/729

  between a chip and a laterally-adjacent discrete passive device · CPC title

• H10W72/877

  Bump connectors and die-attach connectors · CPC title

• H10W90/00

  Package configurations · CPC title