Multilayer ceramic electronic component and board having the same

Patent metadata

Field	Value
Publication number	US-9697953-B2
Application number	US-201514667575-A
Country	US
Kind code	B2
Filing date	Mar 24, 2015
Priority date	Oct 23, 2014
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

There is provided a multilayer ceramic electronic component including: a multilayer ceramic capacitor (MLCC) including first and second external electrodes disposed to be spaced apart from one another on a mounting surface thereof; and first and second terminal electrodes including upper horizontal portions disposed on lower surfaces of the first and second external electrodes, lower horizontal portions disposed to be spaced apart from the upper horizontal portions downwardly, and curved vertical portions connecting one ends of the upper horizontal portions and one ends of the lower horizontal portions, having “⊂” and “⊃” shapes, and disposed on the mounting surface of the MLCC in a facing manner.

First claim

What is claimed is:

1. A multilayer ceramic electronic component comprising:
a multilayer ceramic capacitor (MLCC) including first and second external electrodes disposed to be spaced apart from one another on a mounting surface thereof; and
first and second terminal electrodes respectively including upper horizontal portions disposed on lower surfaces of the first and second external electrodes, lower horizontal portions disposed to be spaced apart from the upper horizontal portions downwardly, and curved vertical portions connecting one ends of the upper horizontal portions and one ends of the lower horizontal portions, having “⊂” and “⊃” shapes, and disposed on the mounting surface of the MLCC in a facing manner, wherein all bends in the first and second terminal electrodes are curved.

2. The multilayer ceramic electronic component of claim 1 , further comprising first and second conductive bonding layers respectively interposed between the lower surfaces of the first and second external electrodes and the upper horizontal portions of the first and second terminal electrodes.

3. The multilayer ceramic electronic component of claim 2 , wherein the first and second conductive bonding layers are smaller than the upper horizontal portions of the first and second terminal electrodes.

4. The multilayer ceramic electronic component of claim 1 , wherein the upper horizontal portions of the first and second terminal electrodes have recesses, respectively.

5. The multilayer ceramic electronic component of claim 4 , wherein the recesses are opened inwardly while facing each other.

6. The multilayer ceramic electronic component of claim 4 , wherein the recesses are less than 50% of areas of the upper horizontal portions.

7. The multilayer ceramic electronic component of claim 1 , wherein curvatures of the vertical portions of the first and second terminal electrodes are equal to or more than 100 μm or greater and are equal to or less than half of an overall thickness of the MLCC including a ceramic body of the MLCC and the first and second external electrodes.

8. A multilayer ceramic electronic component comprising:
a multilayer ceramic capacitor (MLCC) including first and second external electrodes disposed to be spaced apart from one another on a mounting surface thereof; and
first and second terminal electrodes respectively including upper horizontal portions disposed on lower surfaces of the first and second external electrodes, lower horizontal portions disposed to be spaced apart from the upper horizontal portions downwardly, and curved vertical portions connecting one ends of the upper horizontal portions and one ends of the lower horizontal portions, having “⊂” and “⊃” shapes, and disposed on the mounting surface of the MLCC in a facing manner, wherein all bends in the first and second terminal electrodes are curved.

9. The multilayer ceramic electronic component of claim 8 , further comprising first and second conductive bonding layers respectively interposed between the lower surfaces of the first and second band portions of the first and second external electrodes and the upper horizontal portions of the first and second terminal electrodes.

10. The multilayer ceramic electronic component of claim 9 , wherein the first and second conductive bonding layers are smaller than the upper horizontal portions of the first and second terminal electrodes.

11. The multilayer ceramic electronic component of claim 8 , wherein the upper horizontal portions of the first and second terminal electrodes have recesses, respectively.

12. The multilayer ceramic electronic component of claim 11 , wherein the recesses are opened inwardly while facing each other.

13. The multilayer ceramic electronic component of claim 11 , wherein the recesses are less than 50% of areas of the upper horizontal portions.

14. The multilayer ceramic electronic component of claim 8 , wherein curvatures of the vertical portions of the first and second terminal electrodes are equal to or more than 100 μm or greater and are equal to or less than half of an overall thickness of the MLCC including the ceramic body and the first and second external electrodes.

15. The multilayer ceramic electronic component of claim 8 , further comprising cover layers disposed on an uppermost internal electrode and below a lowermost internal electrode within the ceramic body.

16. A multilayer ceramic electronic component comprising:
a multilayer ceramic capacitor (MLCC) including:
a ceramic body including a plurality of dielectric layers stacked in a thickness direction thereof;
a plurality of first internal electrodes each having first and second lead-out portions respectively exposed to both side surfaces of the ceramic body;
a plurality of second internal electrodes alternately disposed with the plurality of first internal electrodes with the dielectric layers interposed therebetween within the ceramic body, and having third and fourth lead-out portions exposed to both side surfaces of the ceramic body and disposed to be spaced apart from the first and second lead-out portions in a length direction of the ceramic body;
first and second external electrodes disposed to extend from both side surfaces of the ceramic body to portions of a lower surface of the ceramic body and connected to the first and second lead-out portions, respectively; and
third and fourth external electrodes disposed to extend from both side surfaces of the ceramic body to portions of the lower surface of the ceramic body and connected to the third and fourth lead-out portions, respectively; and

first and second terminal electrodes respectively including upper horizontal portions disposed on lower surfaces of the first and second external electrodes, lower horizontal portions disposed to be spaced apart from the upper horizontal portions downwardly, and curved vertical portions connecting one ends of the upper horizontal portions and one ends of the lower horizontal portions, having “⊂” and “⊃” shapes, and disposed on a mounting surface of the MLCC in a facing manner, wherein all bends in the first and second terminal electrodes are curved.

17. The multilayer ceramic electronic component of claim 16 , further comprising:
a first conductive bonding layer interposed between the first and second external electrodes and the upper horizontal portion of the first terminal electrode; and
a second conductive bonding layer interposed between the third and fourth external electrodes and the upper horizontal portion of the second terminal electrode.

18. The multilayer ceramic electronic component of claim 17 , wherein the first and second conductive bonding layers are smaller than the upper horizontal portions of the first and second terminal electrodes.

19. The multilayer ceramic electronic component of claim 16 , wherein the upper horizontal portions of the first and second terminal electrodes have recesses, respectively.

20. The multilayer ceramic electronic component of claim 19 , wherein the recesses are opened inwardly while facing each other.

21. The multilayer ceramic electronic component of claim 19 , wherein the recesses are less than 50% of areas of the upper horizontal portions.

22. The multilayer ceramic electronic component of claim 16 , wherein curvatures of the vertical portions of the first and second terminal electrodes are equal to or more than 100 μm or greater and are equal to or less than half of an overall thickness of the MLCC including the ceramic body

Assignees

• Samsung Electro Mech

Inventors

• Park Heung Kil
• Woo Seok Kyoon
• Jun Kyoung Jin
• Song So Yeon
• Lee Soon Ju

Classifications

• H01G4/012

  Form of non-self-supporting electrodes · CPC title

• H05K2201/0311

  Metallic part with specific elastic properties, e.g. bent piece of metal as electrical contact · CPC title

• H05K1/181

  associated with surface mounted components · CPC title

• H05K1/111

  Pads for surface mounting, e.g. lay-out · CPC title

• H05K2201/10757

  Bent leads · CPC title