# US 10,319,520 B2 · Multilayer ceramic capacitor with decreased high voltage stress defects and board having the same

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- Number: US 10,319,520 B2
- Document ID: US10319520B2
- Status: Granted
- Kind: B2
- Application number: 15/258,438
- Filed: 2016-09-07
- Published: 2017-07-06
- Granted: 2019-06-11
- Earliest claimed: 2015-12-30
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Young Heon Oh; Se Hwan Bong; Young Ha Kim; Dong Gun Kim
- Web page: https://patentgrep.com/patent/US10319520B2

## CPC

- H01G 4/005: Electrodes
- H01G 4/012: Form of non-self-supporting electrodes
- H01G 4/228: Terminals
- H01G 4/232: electrically connecting two or more layers of a stacked or rolled capacitor
- H01G 4/30: Stacked capacitors (H01G4/33 takes precedence)
- H05K 1/181: associated with surface mounted components
- H01G 4/12: Ceramic dielectrics {(H01G4/085 takes precedence)}
- 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
- 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

## Abstract

A multilayer ceramic capacitor with decreased high voltage stress defects and a board having the same may include a body formed by stacking a plurality of dielectric layers and a plurality of first and second internal electrodes in a width direction, the first and second internal electrodes including body portions overlapping each other and lead portions exposed to a mounting surface of the body and disposed to be spaced apart from each other, respectively; and first to third external electrodes disposed on the mounting surface of the capacitor body to be connected to the lead portions, respectively, wherein the body portions of the first and second internal electrodes have different areas from each other.

## Claims

### Claim 1

A multilayer ceramic capacitor comprising:
a body including a plurality of dielectric layers stacked therein in a width direction and a plurality of first and second internal electrodes alternately disposed therein with dielectric layers interposed therebetween; and
first to third external electrodes disposed on a mounting surface of the body and spaced apart from each other in a length direction of the body,
wherein the first internal electrodes each include a first body portion and first and second lead portions extended from the first body portion, exposed to the mounting surface of the body, spaced apart from each other in the length direction of the body, and connected to the first and third external electrodes, respectively,
the second internal electrodes each include a second body portion overlapping the first body portion and a third lead portion extended from the second body portion, exposed to the mounting surface of the body, disposed between the first and second lead portions, and connected to the second external electrode,
the first and second body portions have different areas,
at least one first internal electrode is disposed directly between two second internal electrodes,
at least one second internal electrode is disposed directly between two first internal electrodes,
each of the first and second internal electrodes is spaced apart from both end surfaces of the body in the length direction,
wherein cross-sectional areas of the body portions of one of the first or second internal electrodes are 100% to 105% of cross-sectional areas of the body portions of the other of the first or second internal electrodes, respectively,
wherein the multilayer ceramic capacitor further comprises fourth to sixth external electrodes disposed on a surface of the body opposing the mounting surface thereof and spaced apart from each other in the length direction of the body,
wherein the first internal electrode includes fourth and fifth lead portions extended from the first body portion, exposed to the surface of the body opposing the mounting surface thereof, and respectively connected to the fourth and sixth external electrodes,
the second internal electrode includes a sixth lead portion extended from the second body portion, exposed to the surface of the body opposing the mounting surface of the body, and connected to the fifth external electrode, and
wherein the first and second lead portions are covered by the first and third external electrodes, respectively.

### Claim 2 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the body portions of one of the first or second internal electrodes are formed to be wider in length and thickness directions of the body than the body portions of the other of the first or second internal electrodes.

### Claim 3 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the body portions of one of the first or second internal electrodes are formed to be wider in a direction toward the mounting surface of the body than the body portions of the other of the first or second internal electrodes.

### Claim 4 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the first to third external electrodes are spaced apart from both end surfaces of the body in the length direction.

### Claim 5 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the first to third external electrodes extend from the mounting surface of the body to portions of both side surfaces of the body in the width direction, respectively.

### Claim 6 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the fourth and sixth external electrodes are spaced apart from both end surfaces of the body in the length direction.

### Claim 7 (depends on 1)

The multilayer ceramic capacitor of claim 1, wherein the fourth to sixth external electrodes extend from the surface of the body opposing the mounting surface thereof to portions of both side surfaces of the body in the width direction.

### Claim 8 (depends on 1)

A board having a multilayer ceramic capacitor comprising:
a circuit board including first to third electrode pads; and
the multilayer ceramic electronic component of claim 1 mounted on the circuit board so that the first to third external electrodes are disposed on the first to third electrode pads, respectively.