Multilayer ceramic electronic component and board having the same

Patent metadata

Field	Value
Publication number	US-10347430-B2
Application number	US-201715651576-A
Country	US
Kind code	B2
Filing date	Jul 17, 2017
Priority date	Dec 2, 2016
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

A multilayer ceramic electronic component includes a body with a plurality of first and second internal electrodes alternately arranged with dielectric layers interposed therebetween. There may be M each of third and fourth external electrodes on opposing sides of the body, where M is greater than or equal to 3 and all external electrodes have different polarities than the adjacent external electrodes. There may be N via electrodes penetrating through the body, where N is greater than or equal to 3 and the via electrodes are connected to either of the first or second internal electrodes. The multilayer ceramic electronic component may achieve low equivalent series inductance (ESL) characteristics and may reduce the mounting area on the circuit board.

First claim

What is claimed is:

1. A multilayer ceramic electronic component comprising:
a body including a plurality of first and second internal electrodes alternately arranged with dielectric layers interposed therebetween, the first and second internal electrodes each having one or more lead portions extending to a surface of the body, and the first and second internal electrodes having different polarities from each other; and
a plurality of external electrodes on outer surfaces of the body and connected to the first and second internal electrodes,
wherein the external electrodes include first and second external electrodes on first and second surfaces, on opposing sides of the body, respectively, and M of each of third and fourth external electrodes on third and fourth surfaces, on opposing sides of the body and adjacent to the first and second surfaces, respectively,
M is greater or equal to 3, and
all external electrodes have a polarity different from adjacent external electrodes, and
wherein the body includes an active portion that contributes to forming a capacitance, that includes the plurality of first and second internal electrodes, and upper and lower cover portions that do not contribute to forming a capacitance and are respectively on upper and lower surfaces of the active portion, and
the lower cover portion on the lower surface of the active portion has a smaller thickness than that of the upper cover portion on the upper surface of the active portion.

2. The multilayer ceramic electronic component of claim 1 , wherein M is an odd number.

3. The multilayer ceramic electronic component of claim 1 , wherein the first internal electrodes are exposed at the first and second surfaces of the body, and the one or more lead portions of the first internal electrodes include lead portions respectively exposed at the third and fourth surfaces of the body.

4. The multilayer ceramic electronic component of claim 1 , wherein the one or more lead portions of the second internal electrodes are spaced apart from the one or more lead portions of the first internal electrodes, and include lead portions respectively exposed at the third and fourth surfaces of the body.

5. The multilayer ceramic electronic component of claim 1 , wherein the first and second external electrodes have the same polarity.

6. The multilayer ceramic electronic component of claim 1 , wherein the third and fourth external electrodes are positioned so that polarities of external electrodes opposing each other are the same.

7. The multilayer ceramic electronic component of claim 1 , wherein a thickness of the body is thinner than a width of the body.

8. A multilayer ceramic electronic component, comprising:
a body with first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction perpendicular to the first direction, and fifth and sixth surfaces opposing each other in a third direction perpendicular to the first and second directions;
a plurality of first and second internal electrodes alternately arranged with dielectric layers interposed therebetween, in the body,
wherein the first internal electrodes extend to the first and second surfaces of the body and include first and second lead portions that respectively extend to the third and fourth surfaces of the body, and
wherein the second internal electrodes include first and second lead portions, that extend to the third surface of the body and are spaced apart in the first direction from the first lead portions of the first internal electrodes, and third and fourth lead portions, that extend the fourth surface of the body and are spaced apart in the first direction from the second lead portions of the first internal electrodes;
first and second external electrodes respectively on the first and second surfaces of the body and connected to the first internal electrodes;
three or more third external electrodes on the third surface of the body and respectively connected to the first lead portion of the first internal electrodes, the first lead portion of the second internal electrodes, and the second lead portion of the second internal electrodes;
three or more fourth external electrodes on the fourth surface of the body and respectively connected to the second lead portion of the first internal electrodes, the third lead portion of the second internal electrodes, and the fourth lead portion of the second internal electrodes,
wherein the first and third lead portions of the second internal electrodes are between, in the first direction, the first external electrode and the first lead portions of the first internal electrodes, and
the second and fourth lead portions of the second internal electrodes are between, in the first direction, the second external electrode and the first lead portions of the first internal electrodes,
wherein the body includes an active portion that contributes to forming a capacitance, that includes the plurality of first and second internal electrodes, and upper and lower cover portions that do not contribute to forming a capacitance and are respectively on upper and lower surfaces of the active portion, and
the lower cover portion on the lower surface of the active portion has a smaller thickness than that of the upper cover portion on the upper surface of the active portion.

9. The multilayer ceramic electronic component of claim 8 , wherein there are N third external electrodes on the third surface of the body and N fourth electrodes on the fourth surface of the body, and N is an odd number.

10. The multilayer ceramic electronic component of claim 8 , wherein a thickness of the body is less than a width of the body.

Assignees

• Samsung Electro Mech
• Samsung Eiectro Mech Co Ltd

Inventors

• Park Sang Soo
• Ahn Young Ghyu
• Kim Hwi Dae

Classifications

• H01G4/12

  Ceramic dielectrics {(H01G4/085 takes precedence)} · CPC title

• H01G4/248

  the terminals embracing or surrounding the capacitive element, e.g. caps (H01G4/252 takes precedence) · CPC title

• H01G4/30 Primary

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

• Y02P70/611

  Cross-Sectional Technologies · mapped topic

• H01G4/236

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