Capacitor component

Patent metadata

Field	Value
Publication number	US-11031186-B2
Application number	US-201916273324-A
Country	US
Kind code	B2
Filing date	Feb 12, 2019
Priority date	Sep 5, 2016
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

A capacitor component includes a plurality of unit laminates, each comprising a body with a stacked structure including a plurality of internal electrodes and connection electrodes that extend in a stacking direction of the body and electrically connect to the plurality of internal electrodes, and pad portions between adjacent unit laminates to electrically connect the respective connection electrodes of the unit laminates above and below the pad portions to each other.

First claim

What is claimed is:

1. A capacitor component comprising:
a plurality of unit laminates, each comprising a body with a stacked structure including a plurality of internal electrodes and connection electrodes that extend in a stacking direction of the body and electrically connect to the plurality of internal electrodes; and
a pad portion at least partially embedded in the body of one unit laminate of two adjacent unit laminates among the plurality of unit laminates, wherein upper and lower surfaces of the pad portion contact respective connection electrodes of the two adjacent unit laminates,
wherein at least one of the upper surface or the lower surface of the pad portion contacts a dielectric layer.

2. The capacitor component of claim 1 , wherein the connection electrodes penetrate through the body.

3. The capacitor component of claim 1 , wherein an area of the pad portion, as viewed from the stacking direction, is larger than that of the connection electrodes.

4. The capacitor component of claim 1 , wherein respective areas of the connection electrodes, as viewed from the stacking direction, positioned above and below the pad portion are different from each other.

5. The capacitor component of claim 1 , wherein the connection electrode is at a side surface of the body.

6. The capacitor component of claim 5 , wherein a side surface of the pad portion is at the side surface of the body.

7. The capacitor component of claim 6 , further comprising a protective layer covering the connection electrode and the pad portion at the side surface of the body.

8. The capacitor component of claim 1 , wherein the plurality of internal electrodes includes a plurality of first and second internal electrodes alternately stacked with dielectric layers interposed therebetween.

9. The capacitor component of claim 8 , wherein the connection electrodes include first and second connection electrodes electrically connected to the first and second internal electrodes, respectively.

10. The capacitor component of claim 9 , wherein the second connection electrode penetrates through the first internal electrode and is not connected to the first internal electrode.

11. The capacitor component of claim 9 , wherein the pad portion includes a first pad portion connected to the respective first connection electrodes of the unit laminates positioned above and below the first pad portion.

12. The capacitor component of claim 11 , wherein the pad portion includes a second pad portion connected to the respective second connection electrodes of the unit laminates positioned above and below the second pad portion.

13. The capacitor component of claim 9 , further comprising first and second external electrodes electrically connected to the first and second connection electrodes, respectively, and formed on a lower surface of a lowermost unit laminate among the plurality of unit laminates.

14. The capacitor component of claim 13 , wherein the first and second external electrodes are also formed on an upper surface of an uppermost unit laminate among the plurality of unit laminates.

15. The capacitor component of claim 13 , wherein the first and second external electrodes are not formed on side surfaces, in relation to the stacking direction, of the plurality of unit laminates.

16. The capacitor component of claim 1 , wherein the plurality of unit laminates includes three or more unit laminates.

17. The capacitor component of claim 1 , wherein the pad portion contacts another one unit laminate of the two adjacent unit laminates.

18. The capacitor component of claim 1 , wherein the pad portion extends inwardly of at least two intersecting outer surfaces of the body of the unit laminate.

Assignees

• Samsung Electro Mech

Inventors

• Lee Taek Jung
• Joo Jin Kyung
• LEE Hyo Youn
• Lee Won Young
• An Sung Kwon
• Choi Jae Yeol
• Jung Jin Man

Classifications

• H01G4/236

  leading through the housing, i.e. lead-through · CPC title

• H01G4/232 Primary

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

• H01G4/012

  Form of non-self-supporting electrodes · CPC title

• H01G2/065

  for surface mounting, e.g. chip capacitors · CPC title

• H01G4/30 Primary

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