# US 9,520,234 B2 · Multilayer ceramic capacitor, manufacturing method thereof and board for mounting the same thereon

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- Number: US 9,520,234 B2
- Document ID: US9520234B2
- Status: Granted
- Kind: B2
- Application number: 14/099,650
- Filed: 2013-12-06
- Published: 2015-03-12
- Granted: 2016-12-13
- Earliest claimed: 2013-09-12
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Sim Chung Kang; Seung Hee Yoo; Jun Hyeong Kim; Eun Joo Choi; Kyu Ha Lee
- Web page: https://patentgrep.com/patent/US9520234B2

## CPC

- H01G 4/232: electrically connecting two or more layers of a stacked or rolled capacitor
- H01G 4/2325: {characterised by the material of the terminals}
- H01G 4/30: Stacked capacitors (H01G4/33 takes precedence)
- H01G 4/12: Ceramic dielectrics {(H01G4/085 takes precedence)}
- H05K 3/3442: {having edge contacts, e.g. leadless chip capacitors, chip carriers}
- H05K 2201/10015: Non-printed capacitor
- H05K 2201/10636: Leadless chip, e.g. chip capacitor or resistor
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y10T 29/43: Electric condenser making
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A multilayer ceramic capacitor and manufacturing method therefor, in which the capacitor includes a ceramic body including dielectric layers and internal electrodes; electrode layers connected to the internal electrodes; and a conductive resin layer formed on the electrode layers and including a first conductor, a second conductor having a fiber shape, and a base resin.

## Claims

### Claim 1

A multilayer ceramic capacitor comprising:
a ceramic body including dielectric layers and internal electrodes forming capacitance;
external electrode layers connected to the internal electrodes; and
a conductive resin layer formed on the external electrode layers and including a first conductor, a second conductor having a fiber shape, and a base resin.

### Claim 2 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the first conductor has a spherical shape or a flake shape.

### Claim 3 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the second conductor is flexible.

### Claim 4 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein L/D≧1.0, in which a diameter of the second conductor is defined as D and a length of the second conductor is defined as L.

### Claim 5 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein 1 nm≦D≦100 nm, in which a diameter of the second conductor is defined as D.

### Claim 6 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the second conductor is a carbon nanotube.

### Claim 7 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the second conductor is a single-walled carbon nanotube (SWNT).

### Claim 8 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the second conductor is a multi-walled carbon nanotube (MWNT).

### Claim 9 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the base resin is a thermosetting resin.

### Claim 10 (depends on 1)

The multilayer ceramic capacitor of claim 1, further comprising a plating layer formed on the conductive resin layer.

### Claim 11

A manufacturing method of a multilayer ceramic capacitor, comprising:
forming a ceramic body including dielectric layers and internal electrodes;
forming electrode layers to be connected to the internal electrodes;
applying a conductive paste including a first conductor, a second conductor having a fiber shape, and a base resin to the electrode layers; and
curing the conductive paste to form a conductive resin layer.

### Claim 12

A board for mounting a multilayer ceramic capacitor thereon comprising:
a printed circuit board having first and second electrode pads disposed thereon; and
a multilayer ceramic capacitor installed on the printed circuit board,
wherein the multilayer ceramic capacitor includes
a ceramic body including dielectric layers and internal electrodes forming capacitance;
external electrode layers connected to the internal electrodes; and
a conductive resin layer formed on the external electrode layers and including a first conductor, a second conductor having a fiber shape, and a base resin.

### Claim 13

A multilayer ceramic capacitor comprising:
a ceramic body including dielectric layers and internal electrodes;
external electrode layers disposed on outer surfaces of the ceramic body and connected to the internal electrodes forming capacitance; and
a conductive resin layer disposed on the external electrode layers and including a first conductive material, a second conductive material having a fiber shape different to shape of the first conductive material, and a base resin.

### Claim 14 (depends on 13)

The multilayer ceramic capacitor of claim 13, wherein the first conductive material has a particle shape.

### Claim 15

A manufacturing method of a multilayer ceramic capacitor, comprising: forming a ceramic body including a plurality of dielectric layers and internal electrodes; forming external electrode layers on the outer surfaces of the ceramic body to be connected to the internal electrodes;
applying a conductive paste including a first conductive material, a second conductive material having a fiber shape different to shape of the first conductive material, and a base resin to the electrode layers; and
curing the conductive paste to form a conductive resin layer.

### Claim 16 (depends on 15)

The manufacturing method of a multilayer ceramic capacitor of claim 15, wherein the first conductive material has a particle shape.
