Multilayer ceramic electronic component

Patent metadata

Field	Value
Publication number	US-11094468-B2
Application number	US-201916255077-A
Country	US
Kind code	B2
Filing date	Jan 23, 2019
Priority date	Nov 13, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A multilayer ceramic electronic component includes a ceramic body including dielectric layers and first and second internal electrodes alternately laminated with respective dielectric layers disposed therebetween to be exposed to first and second external surfaces of the ceramic body, and first and second external electrodes disposed on the first and second external surfaces of the ceramic body and connected to corresponding internal electrodes, among the first and second internal electrodes, respectively. The dielectric layer includes a portion, disposed between the first and second external electrodes, having a thickness of 3.5 micrometers or more to 3.7 micrometers or less.

First claim

What is claimed is:

1. A multilayer ceramic electronic component comprising:
a ceramic body including dielectric layers and first and second internal electrodes alternately laminated in a thickness direction of the ceramic body with respective dielectric layers disposed therebetween to be respectively exposed to first and second external surfaces of the ceramic body opposing each other in a length direction of the ceramic body; and
first and second external electrodes disposed on the first and second external surfaces of the ceramic body and connected to the first and second internal electrodes, respectively,
wherein one of the dielectric layers includes a portion having a thickness of 3.5 micrometers or more,
the ceramic body further includes a step absorption member disposed in a lateral margin portion disposed on one side of the ceramic body in a width direction of the ceramic body, and
in a width direction-thickness cross-section, an end portion of the first internal electrode and an end portion of the second internal electrode immediately adjacent to the first internal electrode connected to the step absorption members are bent in opposite directions.

2. The multilayer ceramic electronic component of claim 1 , wherein the ceramic body further includes a cover layer disposed on a top surface or a bottom surface of the first and second internal electrodes, and
the cover layer has a thickness greater than the thickness of the portion of the one of dielectric layers.

3. The multilayer ceramic electronic component of claim 2 , wherein the thickness of the portion of the one of the dielectric layers is equal to or greater than twice a thickness of one of the first and second internal electrodes.

4. The multilayer ceramic electronic component of claim 3 , wherein an average of the respective thicknesses of the first and second internal electrodes is greater than zero micrometer and less than 1.0 micrometer.

5. The multilayer ceramic electronic component of claim 1 , wherein the one of the dielectric layers includes the portion having the thickness of 3.5 micrometers or more and 3.7 micrometers or less.

6. A multilayer ceramic electronic component comprising:
a ceramic body including dielectric layers and first and second internal electrodes alternately laminated in a thickness direction of the ceramic body with respective dielectric layers disposed therebetween to be respectively exposed to first and second external surfaces of the ceramic body opposing each other in a length direction of the ceramic body; and
first and second external electrodes disposed on the first and second external surfaces of the ceramic body and connected to the first and second internal electrodes, respectively,
wherein a distance between the first and second internal electrodes, which are immediately adjacent to each other, in the thickness direction is 3.5 micrometers or more, based on a center of the ceramic body in the thickness direction,
the ceramic body further includes a step absorption member disposed in a lateral margin portion disposed on one side of the ceramic body in a width direction of the ceramic body, and
in a width direction-thickness cross-section, an end portion of the first internal electrode and an end portion of the second internal electrode immediately adjacent to the first internal electrode and connected to the step absorption members are bent in opposite directions.

7. The multilayer ceramic electronic component of claim 6 , wherein the ceramic body further includes a second dielectric layer laminated between the dielectric layer and the second internal electrode.

8. The multilayer ceramic electronic component of claim 6 , wherein the ceramic body further includes a cover layer disposed on a top surface or a bottom surface of the first and second internal electrodes, and
the cover layer has a thickness greater than the distance between the first and second internal electrodes in the thickness direction.

9. The multilayer ceramic electronic component of claim 6 , wherein the distance between the first and second internal electrodes, which are immediately adjacent to each other, is equal to or greater than twice a thickness of one of the first and second internal electrodes.

10. The multilayer ceramic electronic component of claim 9 , wherein an average of the respective thicknesses of the first and second internal electrodes is greater than zero micrometer and less than 1.0 micrometer.

11. The multilayer ceramic electronic component of claim 6 , wherein the distance between the first and second internal electrodes, which are immediately adjacent to each other, in the thickness direction is 3.5 micrometers or more and 3.7 micrometers or less, based on the center of the ceramic body in the thickness direction.

12. A multilayer ceramic electronic component comprising:
a ceramic body including dielectric layers and first and second internal electrodes alternately laminated in a thickness direction of the ceramic body with respective dielectric layers disposed therebetween to be respectively exposed to first and second external surfaces of the ceramic body opposing each other in a length direction of the ceramic body; and
first and second external electrodes disposed on the first and second external surfaces of the ceramic body and connected to the first and second internal electrodes, respectively,
wherein one of the dielectric layers includes a portion having a thickness of 3.5 micrometers or more,
one of the first and second internal electrodes includes end portions in a width direction of the ceramic body are bent in one direction, with respect to a central portion of the one of the internal electrodes,
another of the first and second internal electrodes includes end portions in the width direction are bent in in another direction opposite to the one direction, with respect to a central portion of the another of the internal electrodes,
the one of the first and second internal electrodes and the another of the first and second internal electrodes are immediately adjacent.

13. The multilayer ceramic electronic component of claim 12 , wherein the ceramic body further includes a cover layer disposed on a top surface or a bottom surface of the first and second internal electrodes, and
the cover layer has a thickness greater than the thickness of the portion of the one of the dielectric layers.

14. The multilayer ceramic electronic component of claim 12 , wherein the thickness of the portion of the one of the dielectric layers is equal to or greater than twice a thickness of one of the first and second internal electrodes.

15. The multilayer ceramic electronic component of claim 14 , wherein an average of the respective thicknesses of the first and second internal electrodes is greater than zero micrometer and less than 1.0 micrometer.

16. The multilayer ceramic electronic component of claim 12 , wherein the one of the dielectric layer includes the portion having the thickness of 3.5 micrometers or more and 3.7 micrometers or less.

Assignees

• Samsung Electro Mech

Inventors

• Jun A Reum
• Ryoo Hye Won
• Jun Ho In
• Ahn Seok Keun
• Yu Ji Hye
• Jeong Gi Seok

Classifications

• H01G4/012

  Form of non-self-supporting electrodes · CPC title

• H01G4/1227

  based on alkaline earth titanates · 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

• H01G4/12 Primary

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