Multilayer ceramic capacitor

Patent metadata

Field	Value
Publication number	US-9653210-B2
Application number	US-201414558717-A
Country	US
Kind code	B2
Filing date	Dec 2, 2014
Priority date	May 7, 2014
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A multilayer ceramic capacitor may include: a ceramic body; a plurality of first internal electrodes disposed in the ceramic body; a plurality of second internal electrodes stacked alternately with the first internal electrodes in the ceramic body; first and second external electrodes connected to the first internal electrodes, respectively; a third external electrode extended from one side surface of the ceramic body to a portion of a surface opposing a mounting surface of the ceramic body and connected to the second internal electrodes; a fourth external electrode extended from the other side surface of the ceramic body to a portion of the surface opposing the mounting surface of the ceramic body; and an intermitting part disposed on the surface opposing the mounting surface of the ceramic body and connecting the third and fourth external electrodes to each other.

First claim

What is claimed is:

1. A multilayer ceramic capacitor comprising:
a ceramic body having a plurality of dielectric layers stacked in a thickness direction of the ceramic body;
a plurality of first internal electrodes disposed in the ceramic body to be exposed through end surfaces of the ceramic body with a respective dielectric layer interposed between the first internal electrodes;
a plurality of second internal electrodes stacked alternately with the first internal electrodes in the ceramic body and disposed in the ceramic body to be exposed through one side surface of the ceramic body, with a respective dielectric layer interposed between the second internal electrodes;
first and second external electrodes disposed on the end surfaces of the ceramic body, respectively, and connected to end portions of the first internal electrodes, respectively;
a third external electrode extended from one side surface of the ceramic body to a portion of a surface opposing a mounting surface of the ceramic body and connected to the second internal electrodes;
a fourth external electrode extended from the other side surface of the ceramic body to a portion of the surface opposing the mounting surface of the ceramic body; and
an intermitting part disposed on the surface opposing the mounting surface of the ceramic body and connecting the third and fourth external electrodes to each other,
wherein at least one of the first internal electrodes is formed to be exposed through the respective two end surfaces facing each other and is in contact with the first and second external electrodes.

2. The multilayer ceramic capacitor of claim 1 , wherein the intermitting part is a fuse.

3. The multilayer ceramic capacitor of claim 1 , wherein the intermitting part is a resistive pattern.

4. The multilayer ceramic capacitor of claim 1 , wherein the second internal electrode has a lead-out portion to be exposed through one side surface of the ceramic body.

5. The multilayer ceramic capacitor of claim 1 , wherein the first and second external electrodes are extended from both end surfaces of the ceramic body to portions of the mounting surface of the ceramic body, respectively.

6. A multilayer ceramic capacitor comprising:
a ceramic body having a plurality of dielectric layers stacked in a width direction of the ceramic body;
first and second external electrodes disposed on a mounting surface of the ceramic body to be spaced apart from each other in a length direction of the ceramic body;
a third external electrode disposed on the mounting surface of the ceramic body and disposed between the first and second external electrodes;
fourth to sixth external electrodes disposed on a surface opposing the mounting surface of the ceramic body to correspond to the first to third external electrodes, respectively;
a plurality of first and second internal electrodes alternately disposed in the ceramic body with a respective dielectric layer interposed between the plurality of first and second internal electrodes;
first and second lead-out portions extended from the first internal electrode to be exposed through the mounting surface of the ceramic body and the surface opposing the mounting surface of the ceramic body, respectively, and connected to the first and fourth external electrodes, respectively;
third and fourth lead-out portions extended from the second internal electrode to be exposed through the mounting surface of the ceramic body and the surface opposing the mounting surface of the ceramic body, respectively, and connected to the third and sixth external electrodes, respectively; and
an intermitting part disposed on the surface opposing the mounting surface of the ceramic body and connecting the fifth and sixth external electrodes to each other,
wherein the fifth external electrode does not directly contact the first and second internal electrodes.

7. The multilayer ceramic capacitor of claim 6 , wherein the intermitting part is a fuse.

8. The multilayer ceramic capacitor of claim 6 , wherein the intermitting part is a resistive pattern.

9. The multilayer ceramic capacitor of claim 6 , wherein the first or second internal electrode is spaced apart from both end surfaces of the ceramic body.

10. The multilayer ceramic capacitor of claim 6 , wherein the first to sixth external electrodes are extended from the mounting surface of the ceramic body or the surface opposing the mounting surface of the ceramic body to portions of both side surfaces of the ceramic body, respectively.

Assignees

• Samsung Electro Mech

Inventors

• Lee Byoung Hwa
• Kim Young Key
• Park Min Cheol
• Ahn Young Ghyu

Classifications

• H01G2/16

  with fusing elements · CPC title

• H01G4/30

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

• H01G4/232

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

• H01G4/1227

  based on alkaline earth titanates · CPC title

• H01G2/14 Primary

  Protection against electric or thermal overload (by cooling H01G2/08) · CPC title