IP Library Granted Patent US 8,941,972
Granted Patent B2
US 8,941,972 · App. 13/572,407 · Granted Jan 27, 2015

Multilayer ceramic electronic component

Inventors: Myung Jun Park (Chungcheongbuk-do, KR); Sang Hoon Kwon (Gyunggi-do, KR); Chang Hoon Kim (Gyunggi-do, KR); Hyun Hee Gu (Gyunggi-do, KR); Jae Young Park (Seoul, KR); Da Young Choi (Gyunggi-do, KR); Kyu Ha Lee (Gyunggi-do, KR); Byung Jun Jeon (Seoul, KR)
Assignee: Samsung Electro-Mechanics Co., Ltd.
H01B3/12H01G4/30H01G4/12H01G4/2325
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Quick Facts
Patent No.
US 8,941,972
App. No.
13/572,407
Granted
Jan 27, 2015
Kind
B2
Abstract

There are provided a multilayer ceramic electronic component and a method of manufacturing the same. The multilayer ceramic electronic component includes: a ceramic body including a dielectric layer; first and second internal electrodes disposed within the ceramic body to face each other, while having the dielectric layer interposed therebetween; and first external electrodes electrically connected to first and second internal electrodes and second external electrodes formed on the first external electrodes, wherein the first and second external electrodes include a conductive metal and a glass, and when the second external electrodes are divided into three equal parts in a thickness direction, an area of the glass in central parts thereof with respect to an area of the central parts is 30 to 80%. Therefore, sealing properties of a chip is improved, whereby a multilayer ceramic electronic component having improved reliability may be implemented.

Claims (40)

1. A multilayer ceramic electronic component comprising:

a ceramic body including a dielectric layer;

first and second internal electrodes disposed within the ceramic body to face each other, while having the dielectric layer interposed therebetween; and

first external electrodes electrically connected to first and second internal electrodes and second external electrodes formed on the first external electrodes,

wherein the first and second external electrodes include a conductive metal and a glass, and when the second external electrodes are divided into three equal parts in a thickness direction, an area of the glass in central parts thereof with respect to an area of the central parts is 30 to 80%.

2. The multilayer ceramic electronic component of claim 1 , wherein a ratio of a content of the glass in the first external electrodes to a content of the glass in the second external electrodes is 0.5 or less.

3. The multilayer ceramic electronic component of claim 1 , wherein a ratio of an area of the glass in the first external electrodes to an area of the glass in the second external electrodes is 0.5 or less.

4. The multilayer ceramic electronic component of claim 1 , wherein the second external electrodes have an average thickness of 5 μm or more.

5. The multilayer ceramic electronic component of claim 1 , wherein the glass included in the second external electrodes is an insulating glass.

6. The multilayer ceramic electronic component of claim 1 , wherein the conductive metal is at least one selected from a group consisting of copper (Cu), nickel (Ni), silver (Ag), and silver-palladium (Ag—Pd).

7. A multilayer ceramic electronic component comprising:

a ceramic body including a dielectric layer;

first and second internal electrodes disposed within the ceramic body to face each other, while having the dielectric layer interposed therebetween; and

first external electrodes electrically connected to first and second internal electrodes and second external electrodes formed on the first external electrodes,

wherein the first and second external electrodes include a conductive metal and a glass, and the second external electrodes include 35 to 200 parts by weight of the glass with respect to 100 parts by weight of the conductive metal.

8. The multilayer ceramic electronic component of claim 7 , wherein a ratio of a content of the glass in the first external electrodes to a content of the glass in the second external electrodes is 0.5 or less.

9. The multilayer ceramic electronic component of claim 7 , wherein a ratio of an area of the glass in the first external electrodes to an area of the glass in the second external electrodes is 0.5 or less.

10. The multilayer ceramic electronic component of claim 7 , wherein the second external electrodes have an average thickness of 5 μm or more.

11. The multilayer ceramic electronic component of claim 7 , wherein the glass included in the second external electrodes is an insulating glass.

12. The multilayer ceramic electronic component of claim 7 , wherein the conductive metal is at least one selected from a group consisting of copper (Cu), nickel (Ni), silver (Ag), and silver-palladium (Ag—Pd).

13. The multilayer ceramic electronic component of claim 7 , wherein when the second external electrodes are divided into three equal parts in a thickness direction, an area of the glass in central parts thereof with respect to an area of the central parts is 30 to 80%.

14. A conductive paste for an external electrode, the conductive paste comprising:

a conductive metal; and

a glass,

wherein the glass has a content of 35 to 200 parts by weight with respect to 100 parts by weight of the conductive metal.

15. The conductive paste of claim 14 , wherein the glass is an insulating glass.

16. The conductive paste of claim 14 , wherein the conductive metal is at least one selected from a group consisting of copper (Cu), nickel (Ni), silver (Ag), and silver-palladium (Ag—Pd).

17. A method of manufacturing a multilayer ceramic component, the method comprising:

preparing a ceramic body including a dielectric layer and first and second internal electrodes disposed to face each other, while having the dielectric layer interposed therebetween;

forming first external electrodes on end surfaces of the ceramic body so as to be electrically connected to the first and second internal electrodes;

preparing a conductive paste for an external electrode including a conductive metal and a glass having a content of 35 to 200 parts by weight with respect to 100 parts by weight of the conductive metal;

applying the conductive paste for an external electrode onto the first external electrodes; and

forming second external electrodes on the first external electrodes by sintering the ceramic body.

18. The method of claim 17 , wherein when the second external electrodes are divided into three equal parts in a thickness direction, an area of the glass in central parts thereof with respect to an area of the central parts is 30 to 80%.

19. The method of claim 17 , wherein a ratio of a content of the glass in the first external electrodes to a content of the glass in the second external electrodes is 0.5 or less.

20. The method of claim 17 , wherein a ratio of an area of the glass in the first external electrodes to an area of the glass in the second external electrodes is 0.5 or less.

21. The method of claim 17 , wherein the second external electrodes have an average thickness of 5 μm or more.

22. The method of claim 17 , wherein the glass included in the second external electrodes is an insulating glass.

23. The method of claim 17 , wherein the conductive metal is at least one selected from a group consisting of copper (Cu), nickel (Ni), silver (Ag), and silver-palladium (Ag—Pd).

24. The method of claim 17 , wherein the sintering of the ceramic body is performed at a temperature of 750° C. or less.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE MISSING ASSIGNORS PREVIOUSLY RECORDED ON REEL 028767 FRAME 0797. ASSIGNOR(S) HEREBY CONFIRMS THE MISSING INVENTORS ARE JAE YOUNG PARK, DA YOUNG CHOI, KYU HA LEE AND BYUNG JUN JEON. Recorded Aug 22, 2012
From: PARK, MYUNG JUN; KWON, SANG HOON; KIM, CHANG HOON; GU, HYUN HEE; PARK, JAE YOUNG; CHOI, DA YOUNG; LEE, KYU HA; JEON, BYUNG JUN
To: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Reel/Frame 028832/0787 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2012
From: PARK, MYUNG JUN; KWON, SANG HOON; KIM, CHANG HOON; GU, HYUN HEE
To: SAMSUNG ELECTRO-MECHANICS CO., LTD.
Reel/Frame 028767/0797 →
Priority Claims (1)
KR 10-2011-0117398 · Nov 11, 2011 · national
Continuity (1)
Related Publication 20130120898A1 · May 16, 2013