# US 2018/0027656 A1 · Capacitor and board having the same

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- Number: US 2018/0027656 A1
- Document ID: US20180027656A1
- Status: Published application
- Kind: A1
- Application number: 15/449,147
- Filed: 2017-03-03
- Published: 2018-01-25
- Earliest claimed: 2016-07-20
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Jin Man JUNG; Jin Kyung JOO; Ik Hwan CHANG; Taek Jung LEE; Won Young LEE; Yong Won SEO; Jin Woo CHUN
- Web page: https://patentgrep.com/patent/US20180027656A1

## CPC

- H05K 1/181: associated with surface mounted components
- H01G 4/012: Form of non-self-supporting electrodes
- H01G 4/12: Ceramic dielectrics {(H01G4/085 takes precedence)}
- 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 1/111: {Pads for surface mounting, e.g. lay-out}
- H05K 3/3431: {Leadless components}
- H01G 4/1227: {based on alkaline earth titanates}
- H05K 2201/10015: Non-printed capacitor
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- 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)
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A capacitor includes a body including a plurality of dielectric layers, first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween, and first and second insulating regions. The first insulating region is disposed in each of the first internal electrodes and includes a first connection electrode disposed therein. The second insulating region is disposed in each of the second internal electrodes and includes a second connection electrode disposed therein. The products D1×Td and D2×Td are greater than 20 μm2, where Td is a thickness of the dielectric layer, and D1 and D2 are widths of the first and second insulating regions, respectively.

## Claims

### Claim 1

A capacitor comprising:
a body including a plurality of dielectric layers;
first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween;
a first insulating region, disposed in each of the first internal electrodes, including a first connection electrode disposed therein; and
a second insulating region, disposed in each of the second internal electrodes, including a second connection electrode disposed therein.

### Claim 2 (depends on 1)

The capacitor of claim 1, wherein D1×Td and D2×Td are greater than 20 μm2, where Td is a thickness of the dielectric layer, and D1 and D2 are widths of the first and second insulating regions, respectively.

### Claim 3 (depends on 2)

The capacitor of claim 2, wherein D1×Td and D2×Td are 60 μm2 or less.

### Claim 4 (depends on 1)

The capacitor of claim 1, wherein the first and second insulating regions and the first and second connection electrodes are disposed at edges of the first and second internal electrodes.

### Claim 5 (depends on 1)

The capacitor of claim 1, wherein the capacitor includes at least two first insulating regions each disposed in each of the first internal electrodes, at least two second insulating regions disposed in each of the second internal electrodes, at least two first connection electrodes disposed in the at least two first insulating regions and interconnecting the second internal electrodes, and at least two second connection electrodes disposed in the at least two second insulating regions and interconnecting the first internal electrodes.

### Claim 6 (depends on 1)

The capacitor of claim 1, further comprising first and second external electrodes disposed on an external surface of the body,
wherein the first external electrode is electrically connected to the first internal electrodes through the second connection electrode, and
the second external electrode is electrically connected to the second internal electrodes through the first connection electrode.

### Claim 7 (depends on 1)

The capacitor of claim 1, wherein a distance between the first and second connection electrodes is equal to or less than 85% of a length of the body.

### Claim 8 (depends on 1)

The capacitor of claim 1, wherein at least portions of the first and second internal electrodes are exposed to a side surface of the body.

### Claim 9 (depends on 8)

The capacitor of claim 8, further comprising an insulating layer covering the portions of the first and second internal electrodes exposed to the side surface of the body.

### Claim 10 (depends on 1)

The capacitor of claim 1, wherein the first and second connection electrodes are exposed to a side surface of the body, and
the capacitor further comprises an insulating layer disposed on the side surface of the body to cover the first and second connection electrodes.

### Claim 11 (depends on 10)

The capacitor of claim 10, further comprising first and second external electrodes disposed on a lower surface of the body.

### Claim 12 (depends on 10)

The capacitor of claim 10, wherein the insulating layer is formed of an insulating resin or a ceramic sheet.

### Claim 13 (depends on 1)

The capacitor of claim 1, further comprising a cover layer disposed on an upper portion of the body.

### Claim 14 (depends on 1)

A board having a capacitor, the board comprising:
a circuit board having an upper surface on which first and second electrode pads are formed; and
the capacitor of claim 1, mounted on the first and second electrode pads of the circuit board.

### Claim 15

A capacitor comprising:
a body including a plurality of dielectric layers;
first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween;
a first insulating region, disposed in each of the first internal electrodes, including a first connection electrode disposed therein; and
a second insulating region, disposed in each of the second internal electrodes, including a second connection electrode disposed therein;
wherein D1×Td and D2×Td are 60 μm2 or less, where Td is a thickness of the dielectric layer, and D1 and D2 are widths of the first and second insulating regions, respectively.

### Claim 16 (depends on 15)

The capacitor of claim 15, wherein D1 is a minimum distance between a first internal electrode and the first connection electrode, and D2 is a minimum distance between a second internal electrode and the second connection electrode.

### Claim 17 (depends on 15)

The capacitor of claim 15, wherein the first connection electrode interconnects the second internal electrodes and is insulated from the first internal electrodes by the first insulating region, and the second connection electrode interconnects the first internal electrodes and is insulated from the second internal electrodes by the second insulating region.

### Claim 18 (depends on 15)

The capacitor of claim 15, wherein the first insulating region is spaced apart from edges of the first internal electrodes, and
the second insulating region is spaced apart from edges of the second internal electrodes.

### Claim 19 (depends on 18)

The capacitor of claim 18, wherein the first insulating region has a substantially circular shape surrounding the first connection electrode, and
the second insulating region has a substantially circular shape surrounding the second connection electrode.

### Claim 20 (depends on 15)

The capacitor of claim 15, wherein the first insulating region contacts an edge of the first internal electrodes, and
the second insulating region contacts an edge of the second internal electrodes.

### Claim 21 (depends on 20)

The capacitor of claim 20, wherein the first insulating region has a substantially semi-circular shape surrounding the first connection electrode, and
the second insulating region has a substantially semi-circular shape surrounding the second connection electrode.

### Claim 22 (depends on 15)

The capacitor of claim 15, wherein a distance between the first and second connection electrodes is greater than a sum of radii of the first and second connection electrodes, the widths D1 and D2 of the first and second insulating regions, and a 20 μm interval.

### Claim 23

A capacitor comprising:
a body including a plurality of dielectric layers;
first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween;
first and second insulating regions, disposed in each of the first internal electrodes, respectively including first and second connection electrodes disposed therein; and
third and fourth insulating regions, disposed in each of the second internal electrodes, respectively including third and fourth connection electrodes disposed therein,
wherein the first and second connection electrodes interconnect the second internal electrodes, and
wherein the third and fourth connection electrodes interconnect the first internal electrodes.

### Claim 24 (depends on 23)

The capacitor of claim 23, wherein each of the first, second, third, and fourth insulating regions are disposed at edges of the first and second internal electrodes.

### Claim 25 (depends on 24)

The capacitor of claim 24, wherein the first and third insulating regions are disposed along a same first edge of the first and second internal electrodes, and
wherein the second and fourth insulating regions are disposed along a same second edge of the first and second internal electrodes.