Multilayer electronic component

Patent metadata

Field	Value
Publication number	US-11605502-B2
Application number	US-202117330024-A
Country	US
Kind code	B2
Filing date	May 25, 2021
Priority date	Dec 14, 2020
Publication date	Mar 14, 2023
Grant date	Mar 14, 2023

Abstract

A multilayer electronic component includes a body including a dielectric layer and a plurality of internal electrodes laminated with the dielectric layer interposed therebetween; and an external electrode disposed on the body and connected to the plurality of internal electrodes. The plurality of internal electrodes includes two or more internal electrodes having different thicknesses, a most thick internal electrode having a greatest thickness and a least thick internal electrode having a lowest thickness among the plurality of internal electrodes are disposed on first and second outermost sides opposing each other in a lamination direction of the plurality of internal electrodes. Each internal electrode disposed between the most thick internal electrode and the least thick internal electrode has a thickness the same as or greater than a thickness of an adjacent internal electrode, which is adjacent to that internal electrode in the lamination direction toward the second outermost side.

First claim

What is claimed is:

1. A multilayer electronic component, comprising:
a body including a dielectric layer and a plurality of internal electrodes laminated with the dielectric layer interposed between the plurality of internal electrodes; and
an external electrode disposed on the body and connected to the plurality of internal electrodes,
wherein the plurality of internal electrodes includes two or more internal electrodes having different thicknesses, a most thick internal electrode having a greatest thickness and a least thick internal electrode having a lowest thickness among the plurality of internal electrodes are disposed on first and second outermost sides opposing each other in a lamination direction of the plurality of internal electrodes, and each internal electrode disposed between the most thick internal electrode and the least thick internal electrode has a thickness the same as or greater than a thickness of an adjacent internal electrode, which is adjacent to the internal electrode in the lamination direction toward the second outermost side.

2. The multilayer electronic component of claim 1 , wherein the body includes a capacitance forming portion in which the plurality of internal electrodes are disposed, and upper and lower cover portions disposed on both ends of the capacitance forming portion in the lamination direction of the plurality of internal electrodes, respectively.

3. The multilayer electronic component of claim 1 , wherein, among the plurality of internal electrodes, when a thickness of the internal electrode disposed on the first outermost side is defined as t 1 and a thickness of the internal electrode disposed on the second outermost side is defined as t 2 , t 1 and t 2 satisfy t 1 ≤2×t 2 .

4. The multilayer electronic component of claim 2 ,
wherein the capacitance forming portion includes a first region including the first outermost side and a second region including the second outermost side,
wherein, in the first region, a first internal electrode group in which a plurality of internal electrodes having the same thickness as a thickness of the internal electrode disposed on the first outermost side are laminated is disposed, and
wherein, in the second region, a second internal electrode group in which a plurality of internal electrodes having the same thickness as a thickness of the internal electrode disposed on the second outermost side are laminated is disposed.

5. The multilayer electronic component of claim 4 , wherein lengths of the first and second regions in the lamination direction of the plurality of internal electrodes are the same.

6. The multilayer electronic component of claim 4 , wherein the number of internal electrodes included in the first internal electrode group and the number of internal electrodes included in the second internal electrode group are the same.

7. The multilayer electronic component of claim 2 ,
wherein the capacitance forming portion includes three or more regions in which internal electrodes having different thicknesses are disposed, respectively, and
wherein, in each of the three or more regions, the internal electrodes included in the respective region of the capacitance forming portion have the same thickness.

8. The multilayer electronic component of claim 7 , wherein the number of the internal electrodes included in each of the three or more the regions of the capacitance forming portion is the same.

9. The multilayer electronic component of claim 1 , wherein a spacing distance between the plurality of internal electrodes in the lamination direction is constant.

10. The multilayer electronic component of claim 1 , wherein the plurality of internal electrodes are disposed to have a thickness gradually decreasing from the first outermost side to the second outermost side.

11. The multilayer electronic component of claim 1 ,
wherein the external electrode includes first and second external electrodes disposed on both end surfaces of the body in a first direction different from the lamination direction, respectively, and
wherein the plurality of internal electrodes include first and second internal electrodes connected to the first and second external electrodes, respectively.

12. The multilayer electronic component of claim 11 , wherein the first external electrode and the second internal electrode are disposed to be spaced apart from each other in the first direction, and the second external electrode and the first internal electrode are disposed to be spaced apart from each other in the first direction, and shortest spacing distances therebetween are the same.

13. A multilayer electronic component, comprising:
a body including a dielectric layer and a plurality of internal electrodes laminated with the dielectric layer interposed between the plurality of internal electrodes,
wherein the plurality of internal electrodes includes a most thick internal electrode having a greatest thickness among the plurality of internal electrodes disposed on a first outermost side, and a least thick internal electrode having a lowest thickness among the plurality of internal electrodes disposed on a second outermost side, the first and second outermost sides opposing each other in a lamination direction of the plurality of internal electrodes, and the plurality of internal electrodes are disposed such that a thickness of each of the plurality of internal electrodes gradually decreases from the first outermost side to the second outermost side.

14. The multilayer electronic component of claim 13 , wherein the body includes a capacitance forming portion in which the plurality of internal electrodes are disposed, and upper and lower cover portions disposed on both ends of the capacitance forming portion in the lamination direction of the plurality of internal electrodes, respectively.

15. The multilayer electronic component of claim 13 , wherein, a thickness value t 1 of the most thick internal electrode and a thickness value t 2 of the least thick internal electrode satisfy the relationship defined as t 1 ≤2×t 2 .

16. The multilayer electronic component of claim 14 ,
wherein the capacitance forming portion includes a first region including the first outermost side and a second region including the second outermost side,
wherein, in the first region, a first internal electrode group in which a plurality of internal electrodes having the same thickness as a thickness of the internal electrode disposed on the first outermost side are laminated is disposed, and
wherein, in the second region, a second internal electrode group in which a plurality of internal electrodes having the same thickness as a thickness of the internal electrode disposed on the second outermost side are laminated is disposed.

17. The multilayer electronic component of claim 16 , wherein lengths of the first and second regions in the lamination direction of the plurality of internal electrodes are the same.

18. The multilayer electronic component of claim 16 , wherein the number of internal electrodes included in the first internal electrode group and the number of internal electrodes included in the second internal electrode group are the same.

19. The multilayer electronic component of claim 14 ,
wherein the capacitance forming portion includes three or more regions in which internal electrodes having different thicknesses are disposed, respectively, and
wherein, in each of the three or more regions, the internal electrodes included in the respective region of the capacitance forming portion have

Assignees

• Samsung Electro Mech

Inventors

• Pyo Hye Sung
• Jun Ho In
• Jeon Ki Hun
• Hong Do Hyun

Classifications

• H01G4/1209

  characterised by the ceramic dielectric material (H01G4/1272, H01G4/1281 take precedence) · CPC title

• H01G4/1227

  based on alkaline earth titanates · CPC title

• H01G4/012

  Form of non-self-supporting electrodes · CPC title

• H01G4/224

  Housing; Encapsulation · CPC title

• H01G4/30 Primary

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