Multilayer ceramic component and board having the same

Patent metadata

Field	Value
Publication number	US-9646769-B2
Application number	US-201514877765-A
Country	US
Kind code	B2
Filing date	Oct 7, 2015
Priority date	Nov 3, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A multilayer ceramic component including a multilayer ceramic capacitor including first and second external electrodes disposed on a mounting surface of a ceramic body; and first and second terminal electrodes each including an upper horizontal part disposed on a lower surface of the respective external electrode, a lower horizontal part disposed below the upper horizontal part and spaced apart from the upper horizontal part, and a connecting part connecting the upper horizontal part and the lower horizontal part, the connecting part having a plurality of openings alternately facing opposite end surfaces of the ceramic body.

First claim

What is claimed is:

1. A multilayer ceramic component comprising:
a multilayer ceramic capacitor including first and second external electrodes disposed on a mounting surface of a ceramic body; and
first and second terminal electrodes each including:
an upper horizontal part disposed on a lower surface of the respective external electrode,
a lower horizontal part disposed below the upper horizontal part and spaced apart from the upper horizontal part, and
a connecting part connecting the upper horizontal part and the lower horizontal part,
wherein each of the connecting parts of the first and second terminal electrodes includes:
a plurality of horizontal parts disposed between the upper horizontal part and the lower horizontal part,
first vertical parts connecting first ends of adjacent horizontal parts to each other, and
at least one second vertical part connecting second ends of adjacent horizontal parts to each other,

wherein the first and second vertical parts are alternately disposed in a vertical direction, and
wherein the connecting part has a plurality of openings having an “]” or “[” shape alternately facing opposite end surfaces of the ceramic body.

2. The multilayer ceramic component of claim 1 , wherein the vertical parts of the first and second terminal electrodes have curved surfaces.

3. The multilayer ceramic component of claim 1 , further comprising first and second conductive adhesive layers disposed between the lower surfaces of the first and second external electrodes and the upper horizontal parts of the first and second terminal electrodes, respectively.

4. The multilayer ceramic component of claim 3 , wherein the first and second conductive adhesive layers comprise a high melting-point solder or a conductive paste.

5. The multilayer ceramic component of claim 3 , wherein widths of the upper horizontal parts of the first and second terminal electrodes are narrower than widths of the first and second conductive adhesive layers, respectively.

6. The multilayer ceramic component of claim 3 , wherein widths of the upper horizontal parts of the first and second terminal electrodes are wider than widths of the first and second conductive adhesive layers, respectively.

7. The multilayer ceramic component of claim 1 , wherein the ceramic body comprises a plurality of dielectric layers stacked in a thickness direction, a plurality of first and second internal electrodes disposed with at least one dielectric layer disposed between adjacent first and second internal electrodes, the first and second internal electrodes being alternately exposed through opposite end surfaces of the ceramic body in a length direction, and
the first and second external electrodes comprise first and second front surface parts respectively covering opposite end surfaces of the ceramic body in the length direction and respectively connected to the first and second internal electrodes, and first and second band parts respectively extended from the first and second front surface parts to cover portions of circumferential surfaces of the ceramic body, respectively.

8. The multilayer ceramic component of claim 7 , wherein the ceramic body further comprises cover layers disposed on an uppermost internal electrode and beneath a lowermost internal electrode.

9. The multilayer ceramic component of claim 1 , wherein the ceramic body includes a plurality of dielectric layers layered in a width direction, a plurality of first internal electrodes having first lead parts exposed through a lower surface of the ceramic body, and a plurality of second internal electrodes disposed to alternate with the first internal electrodes with at least one dielectric layer disposed between adjacent first and second internal electrodes and having second lead parts exposed through the lower surface of the ceramic body and disposed to be spaced apart from the first lead parts in a length direction, and
the first and second external electrodes are disposed on the lower surface of the ceramic body to be spaced apart from each other and connected to the first and second lead parts, respectively.

10. The multilayer ceramic component of claim 9 , wherein the first and second external electrodes extend from the lower surface of the ceramic body to portions of side surfaces of the ceramic body.

11. The multilayer ceramic component of claim 9 , further comprising third and fourth external electrodes disposed on an upper surface of the ceramic body to be spaced apart from each other,
wherein the first internal electrodes have third lead parts exposed through the upper surface of the ceramic body and connected to the third external electrode, and
the second internal electrodes have fourth lead parts exposed through the upper surface of the ceramic body and connected to the fourth external electrode.

12. The multilayer ceramic component of claim 11 , wherein the third and fourth external electrodes extend from the upper surface of the ceramic body to portions of side surfaces of the ceramic body.

13. A board having a multilayer ceramic component, comprising:
a circuit board having a plurality of electrode pads; and
the multilayer ceramic component of claim 1 mounted on the circuit board such that lower horizontal parts of the terminal electrodes are bonded to the electrode pads.

Assignees

• Samsung Electro Mech

Inventors

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

Classifications

• H05K2201/10757

  Bent leads · CPC title

• H05K2201/10015

  Non-printed capacitor · CPC title

• H05K2201/2045

  Protection against vibrations · CPC title

• H05K2201/0311

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

• H05K3/3426

  characterised by the leads · CPC title