Composite electronic component

Patent metadata

Field	Value
Publication number	US-11217390-B2
Application number	US-202016861470-A
Country	US
Kind code	B2
Filing date	Apr 29, 2020
Priority date	Dec 24, 2019
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

A composite electronic component includes a capacitor structure including a dielectric layer, and a first internal electrode and a second internal electrode alternately arranged in a first direction, with the dielectric layer interposed therebetween; a fuse structure including a fuse and a fuse body; a common electrode disposed between one surface of the capacitor structure in a second direction, crossing the first direction, and one surface of the fuse structure in the second direction, and connected to the first internal electrode and the fuse; a first external electrode disposed on the other surface of the fuse structure in the second direction, and connected to the fuse; and a second external electrode disposed on the other surface of the capacitor structure in the second direction, and connected to the second internal electrode.

First claim

What is claimed is:

1. A composite electronic component comprising:
a capacitor structure including a dielectric layer, and a first internal electrode and a second internal electrode alternately arranged in a first direction, with the dielectric layer interposed therebetween, thereby forming a capacitance forming portion;
a fuse structure including a fuse and a fuse body;
a common electrode disposed between one surface of the capacitor structure and one surface of the fuse structure in a second direction crossing the first direction, wherein the common electrode covers an entire portion of a surface of the capacitance forming portion extending in a third direction crossing the first and second directions, the common electrode connected to the first internal electrode and the fuse;
a first external electrode disposed on the other surface of the fuse structure in the second direction, and connected to the fuse; and
a second external electrode disposed on the other surface of the capacitor structure in the second direction, and connected to the second internal electrode.

2. The composite electronic component according to claim 1 , wherein the first internal electrode is exposed from the one surface of the capacitor structure in the second direction, and the second internal electrode is exposed from the other surface of the capacitor structure in the second direction.

3. The composite electronic component according to claim 1 , wherein the fuse is disposed in the fuse body and exposed from the one surface and the other surface of the fuse body in the second direction.

4. The composite electronic component according to claim 1 , wherein the fuse has a metal wire shape.

5. The composite electronic component according to claim 4 , wherein the fuse is disposed as a plurality of fuses.

6. The composite electronic component according to claim 1 , wherein the fuse has a metal thin film shape covering an outer surface of the fuse body.

7. The composite electronic component according to claim 6 , wherein the fuse is a metal glaze.

8. The composite electronic component according to claim 1 , wherein the common electrode comprises a conductive metal, and one or more of glass and resin.

9. The composite electronic component according to claim 1 , wherein the second direction is perpendicular to the first direction.

10. A composite electronic component comprising:
a capacitor structure including a dielectric layer, and a first internal electrode and a second internal electrode alternately arranged in a first direction, with the dielectric layer interposed therebetween;
a fuse structure including a polymer and a fuse including a plurality of conductive particles;
a common electrode disposed between one surface of the capacitor structure in a second direction, crossing the first direction, and one surface of the fuse structure in the second direction, the common electrode connected to the first internal electrode and the fuse;
a first external electrode disposed on the other surface of the fuse structure in the second direction, and connected to the fuse; and
a second external electrode disposed on the other surface of the capacitor structure in the second direction, and connected to the second internal electrode.

11. The composite electronic component according to claim 10 , wherein the first internal electrode is exposed from the one surface of the capacitor structure in the second direction, and the second internal electrode is exposed from the other surface of the capacitor structure in the second direction.

12. The composite electronic component according to claim 10 , wherein at least a portion of the plurality of conductive particles are arranged as a connector continuously connected to each other,
wherein the connector is exposed from the one surface and the other surface of the fuse structure in the second direction.

13. The composite electronic component according to claim 10 , wherein the conductive particles include carbon particles.

14. The composite electronic component according to claim 10 , wherein the common electrode comprises a conductive metal, and one or more of glass and resin.

15. The composite electronic component according to claim 10 , wherein the second direction is perpendicular to the first direction.

16. A composite electronic component comprising:
a capacitor structure including dielectric layers, and first internal electrodes and second internal electrodes alternately arranged in a first direction with a respective one of the dielectric layers interposed therebetween, thereby forming a capacitance forming portion;
a common electrode directly connected to the first internal electrodes and covering an entire portion of a surface of the capacitance forming portion extending in a second direction crossing the first direction;
a fuse structure including a fuse and a fuse body;
a first external electrode disposed on the fuse structure; and
a second external electrode disposed on the capacitor structure and connected to the second internal electrodes,
wherein the fuse connects the common electrode and the first external electrode to each other.

17. The composite electronic component according to claim 16 , wherein at least a portion of the fuse is disposed between the first external electrode and the capacitor structure.

18. The composite electronic component according to claim 16 , wherein the fuse has a wire shape embedded in the fuse body.

19. The composite electronic component according to claim 16 , wherein the fuse covers an outer surface of the fuse body.

20. The composite electronic component according to claim 16 , wherein the fuse body includes a polymer and the fuse includes a plurality of conductive particles dispersed in the polymer.

Assignees

• Samsung Electro Mech

Inventors

• Kim Ki Hong
• Won Jae Sun
• Yu Jae Joon

Classifications

• H01G4/30 Primary

  Stacked capacitors (H01G4/33 takes precedence) · CPC title

• H01G4/232

  electrically connecting two or more layers of a stacked or rolled capacitor · CPC title

• H01G4/14

  Organic dielectrics · CPC title

• H01G2/16 Primary

  with fusing elements · CPC title

• H01G4/012

  Form of non-self-supporting electrodes · CPC title