# US 12,191,085 B2 · Multilayer capacitor

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- Number: US 12,191,085 B2
- Document ID: US12191085B2
- Status: Granted
- Kind: B2
- Application number: 17/846,674
- Filed: 2022-06-22
- Published: 2023-03-30
- Granted: 2025-01-07
- Earliest claimed: 2021-09-29
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Hwi Dae Kim; Taek Jung Lee; Young Ghyu Ahn
- Web page: https://patentgrep.com/patent/US12191085B2

## CPC

- H01G 4/30: Stacked capacitors (H01G4/33 takes precedence)
- H01G 4/008: Selection of materials
- 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 4/1227: {based on alkaline earth titanates}
- 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)

## Abstract

A multilayer capacitor includes a body including a dielectric layer and first and second internal electrodes, first external electrodes respectively be connected to the first internal electrode and second external electrodes respectively connected to the second internal electrode. The first internal electrode includes a first main portion and a first lead-out portion. The first lead-out portion includes a first inclined portion and a first connection portion. The first inclined portion is connected to the first main portion and has a side surface, at least a portion of which is inclined with respect to a side surface of the first main portion connected thereto. The first connection portion is connected to the first inclined portion and the first external electrode, and has a side surface, at least a portion of which is inclined with respect to the side surface of the first inclined portion connected thereto.

## Claims

### Claim 1

A multilayer capacitor comprising:
a body including a dielectric layer and first and second internal electrodes stacked on each other with the dielectric layer interposed therebetween;
a pair of first external electrodes respectively disposed on first and second corners of the body opposing to each other in a first diagonal direction, and connected to the first internal electrode; and
pair of second external electrodes respectively disposed on third and fourth corners of the body opposing to each other in a second diagonal direction, and connected to the second internal electrode,
wherein the first internal electrode includes a first main portion, and a first lead-out portion connected to the first external electrode and extending in the first diagonal direction in which the first or second corner and the first main portion are connected to each other,
the first lead-out portion includes a first inclined portion and a first connection portion,
the first inclined portion is connected to the first main portion and has a side surface, at least a portion of which is inclined with respect to a side surface of the first main portion connected thereto,
the first connection portion is connected to the first inclined portion and one of the pair of first external electrodes, and has a side surface, at least a portion of which is inclined with respect to the side surface of the first inclined portion connected thereto, and
a width of the first inclined portion is greater than a length of the side surface of the first connection portion.

### Claim 2 (depends on 1)

The multilayer capacitor of claim 1, wherein the second internal electrode includes a second main portion, and a second lead-out portion connected to the second external electrode and extending in the second diagonal direction in which the third or fourth corner and the second main portion are connected to each other,
the second lead-out portion includes a second inclined portion and a second connection portion,
the second inclined portion is connected to the second main portion and has a side surface, at least a portion of which is inclined with respect to a side surface of the second main portion connected thereto, and
the second connection portion is connected to the second inclined portion and one of the pair of second external electrodes, and has a side surface, at least a portion of which is inclined with respect to the side surface of the second inclined portion connected thereto.

### Claim 3 (depends on 1)

The multilayer capacitor of claim 1, wherein the first connection portion has a width wider from a region in which the first connection portion is connected to the first inclined portion, in the first diagonal direction.

### Claim 4 (depends on 1)

The multilayer capacitor of claim 1, wherein the first connection portion is spaced apart from an end of the one of the pair of first external electrodes.

### Claim 5 (depends on 4)

The multilayer capacitor of claim 4, wherein 50 μm or more is a margin length by which the first connection portion is spaced apart from the end of the first external electrode, based on a length of the multilayer capacitor, measured in a direction along which an edge of the body extends and which is different from a stacking direction of the first and second internal electrodes.

### Claim 6 (depends on 5)

The multilayer capacitor of claim 5, wherein the margin length is 150 μm or less.

### Claim 7 (depends on 5)

The multilayer capacitor of claim 5, wherein the margin length is less than or equal to a length of the first connection portion.

### Claim 8 (depends on 1)

The multilayer capacitor of claim 1, wherein the side surface of the first connection portion is perpendicular to the side surface of the first main portion.

### Claim 9 (depends on 1)

The multilayer capacitor of claim 1, wherein the body has a square structure based on a direction in which the first and second internal electrodes are stacked on each other.

### Claim 10 (depends on 9)

The multilayer capacitor of claim 9, wherein a length of one side of the square structure has a value between −10% and +10% of (250+n*350) μm based on the direction in which the first and second internal electrodes are stacked on each other, and here “n” is a natural number.

### Claim 11 (depends on 10)

The multilayer capacitor of claim 10, wherein the multilayer capacitor has a thickness of 70 μm or less when the thickness is measured in the direction in which the first and second internal electrodes are stacked on each other.

### Claim 12 (depends on 1)

The multilayer capacitor of claim 1, wherein the first inclined portion includes two side surfaces connected to the first main portion, and the two side surfaces are parallel to each other.

### Claim 13 (depends on 1)

The multilayer capacitor of claim 1, wherein the first inclined portion includes two side surfaces connected to the first main portion, and the two side surfaces are not parallel to each other.

### Claim 14 (depends on 13)

The multilayer capacitor of claim 13, wherein the first inclined portion has a width narrower from the first main portion to the first connection portion.

### Claim 15 (depends on 1)

The multilayer capacitor of claim 1, wherein a sum of lengths of the first inclined portion and the first connection portion is less than half a length of the body, based on a length of the multilayer capacitor, measured in a direction along which an edge of the body extends and which is different from a stacking direction of the first and second internal electrodes.

### Claim 16

A multilayer capacitor comprising:
a body including a dielectric layer and first and second internal electrodes stacked on each other with the dielectric layer interposed therebetween;
a pair of first external electrodes respectively disposed on first and second corners of the body opposing to each other in a first diagonal direction, and connected to the first internal electrode; and
a pair of second external electrodes respectively disposed on third and fourth corners of the body opposing to each other in a second diagonal direction, and connected to the second internal electrode,
wherein the first internal electrode includes a first main portion, and a first lead-out portion connected to the first external electrode and extending in the first diagonal direction in which the first or second corner and the first main portion are connected to each other,
the first lead-out portion includes a first inclined portion connected to the first main portion and having a side surface, at least a portion of which is inclined with respect to a side surface of the first main portion connected thereto,
the first inclined portion includes two side surfaces connected to the first main portion, and the two side surfaces are not parallel to each other,
the first lead-out portion further includes a first connection portion connected to the first inclined portion and one of the pair of first external electrodes, and
the first connection portion has a side surface, at least a portion of which is inclined with respect to at least one of the two side surfaces of the first inclined portion connected thereto.

### Claim 17 (depends on 16)

The multilayer capacitor of claim 16, wherein the second internal electrode includes a second main portion, and a second lead-out portion connected to the second external electrode and extending in the second diagonal direction in which the third or fourth corner and the second main portion are connected to each other, and
the second lead-out portion includes a second inclined portion connected to the second main portion and having a side surface, at least a portion of which is inclined with respect to a side surface of the second main portion connected thereto.

### Claim 18 (depends on 16)

The multilayer capacitor of claim 16, wherein the first connection portion is directly connected to the one of the pair of first external electrodes.

### Claim 19

A multilayer capacitor comprising:
a body including a dielectric layer and first and second internal electrodes stacked on each other with the dielectric layer interposed therebetween;
a first external electrode disposed on a corner of the body and connected to the first internal electrode; and
a second external electrode disposed on another corner of the body and connected to the second internal electrode,
wherein the first internal electrode includes a first main portion, and a first lead-out portion connected to the first external electrode and extending in the diagonal direction in which the corner and the first main portion are connected to each other,
the first lead-out portion includes a first inclined portion connected to the first main portion and a first connection portion connected to the first external electrode,
the first inclined portion includes side surfaces connected to the first main portion and inclined with respect to each other, and
the first inclined portion has a width narrower from the first main portion to the first connection portion.
