# US 12,002,623 B2 · Multilayered electronic component

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- Number: US 12,002,623 B2
- Document ID: US12002623B2
- Status: Granted
- Kind: B2
- Application number: 17/752,222
- Filed: 2022-05-24
- Published: 2023-06-29
- Granted: 2024-06-04
- Earliest claimed: 2021-12-29
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Tae Gyeom Lee; Gi Long Kim; Seon Jae Mun; Byung Rok Ahn; Kyoung Jin Cha
- Web page: https://patentgrep.com/patent/US12002623B2

## CPC

- H01G 4/005: Electrodes
- H01G 4/0085: {Fried electrodes}
- H01G 4/012: Form of non-self-supporting electrodes
- H01G 4/1209: {characterised by the ceramic dielectric material (H01G4/1272, H01G4/1281 take precedence)}
- H01G 4/232: electrically connecting two or more layers of a stacked or rolled capacitor
- H01G 4/248: the terminals embracing or surrounding the capacitive element, e.g. caps (H01G4/252 takes precedence)
- H01G 4/30: Stacked capacitors (H01G4/33 takes precedence)
- 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 electronic component according to an exemplary embodiment of the present disclosure may control connectivity of an end of an internal electrode, thereby suppressing occurrence of a short circuit between the internal electrodes, reduced capacitance or lower breakdown voltage.

## Claims

### Claim 1

A multilayer electronic component comprising:
a body including a plurality of dielectric layers and first and second internal electrodes alternately disposed in a first direction, while having a respective one of the plurality of dielectric layers interposed therebetween, and including first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction;
a first external electrode disposed on the third surface and connected to the first internal electrodes; and
a second external electrode disposed on the fourth surface and connected to the second internal electrodes,
wherein one of the first internal electrodes is spaced apart from the fourth surface and includes a plurality of first conductor portions and first cut-off portions, and one of the second internal electrodes is spaced apart from the third surface and includes a plurality of second conductor portions and second cut-off portions, and
an average value of connectivity of an end of the one of the first internal electrodes is 60% or more, E1 indicates a region from a first conductor portion which is disposed closest to the second external electrode among the first conductor portions each having thickness and length of 80 nm or more among the plurality of first conductor portions to 10 μm inside the one of the first internal electrodes, based on a cross section of the body in a first-second direction, and the connectivity of the end of the one of the first internal electrodes indicates a ratio of a length of the one of the first internal electrodes, occupied by the plurality of first conductor portions in the region E1, to a length of E1.

### Claim 2 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of E1s/F1s×100 is 55 or more, F1 indicates a region of one of the second internal electrodes, opposing E1 in the first direction, E1s indicates an area of the first conductor portion included in E1, and F1s indicates an area of the second conductor portion included in F1.

### Claim 3 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of a length of the end of the one of the first internal electrodes is 4.2 μm or less, the length of the end of the one of the first internal electrodes indicates a length of the one of the first internal electrodes from the first conductor portion disposed closest to the second external electrode among the first conductor portions each having the thickness and length of 80 nm or more among the plurality of first conductor portions to the first conductor portion disposed closest to the second external electrode among the first conductor portions each having a length equal to or greater than twice its thickness among the plurality of first conductor portions.

### Claim 4 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of connectivities of ends of the first internal electrodes is 60% or more, obtained by measuring values of five first internal electrodes arranged in a center of a region, in which the body is divided into thirds in the first direction, based on the cross section of the body in the first-second direction, and then averaging the same.

### Claim 5 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of E1s/F1s×100 is 55 or more, obtained by measuring E1s/F1s×100 of five pairs of first and second internal electrodes arranged in a center of a region, in which the body is divided into thirds in the first direction, based on the cross section of the body in the first-second direction, and then averaging the same, and
for each pair: F1 indicates a region of the second internal electrode, opposing E1 in the first direction, E1s indicates an area of the first conductor portion included in E1, and F1s indicates an area of the second conductor portion included in F1.

### Claim 6 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of lengths of ends of the first internal electrodes is 4.2 μm or less, a obtained by measuring values of five first internal electrodes arranged in a center of a region, in which the body is divided into thirds in the first direction, based on the cross section of the body in the first-second direction, and then averaging the same, and
for each of the five first internal electrodes: the length of the end of the first internal electrode indicates a length of the first internal electrode from the first conductor portion disposed closest to the second external electrode among the first conductor portions each having the thickness and length of 80 nm or more among the plurality of first conductor portions to the first conductor portion disposed closest to the second external electrode among the first conductor portions each having a length equal to or greater than twice its thickness among the plurality of first conductor portions.

### Claim 7 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of connectivity of an end of the one of the second internal electrodes is 60% or more, E2 indicates a region from the second conductor portion which is disposed closest to the first external electrode among the second conductor portions each having thickness and length of 80 nm or more among the plurality of second conductor portions to 10 μm inside the one of the second internal electrodes, and the connectivity of the end of the one of the second internal electrodes indicates a ratio of a length of the one of the second internal electrodes, occupied by the plurality of second conductor portions in the region E2, to a length of E2.

### Claim 8 (depends on 7)

The multilayer electronic component of claim 7, wherein an average value of E2s/F2s×100 is 55 or more, F2 indicates a region of the one of the first internal electrodes, opposing E2 in the first direction, E2s indicates an area of the second conductor portion included in E2, and F2s indicates an area of the second conductor portion included in F2.

### Claim 9 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of a length of an end of the one of the second internal electrodes is 4.2 μm or less, the length of the end of the one of the second internal electrodes indicates a length of the one of the second internal electrodes from the second conductor portion disposed closest to the first external electrode and having the thickness and length of 80 nm or more among the plurality of second conductor portions to the second conductor portion disposed closest to the first external electrode and having a length equal to or greater than twice its thickness.

### Claim 10 (depends on 1)

The multilayer electronic component of claim 1, wherein an average value of connectivity of the one of the first internal electrodes is 85% or more, the connectivity of the one of the first internal electrodes indicates a ratio of a length of the one of the first internal electrodes, occupied by the first conductor portion, to the length of the one of the first internal electrodes.

### Claim 11 (depends on 1)

The multilayer electronic component of claim 1, wherein the first or second cut-off portion includes at least one of a pore and a dielectric.

### Claim 12 (depends on 1)

The multilayer electronic component of claim 1, wherein an average thickness of one of the first and second internal electrodes is 0.4 μm or less.

### Claim 13 (depends on 1)

The multilayer electronic component of claim 1, wherein an average thickness of one of the plurality of dielectric layers is 0.45 μm or less.

### Claim 14 (depends on 1)

The multilayer electronic component of claim 1, wherein the body includes a capacitance formation portion including the first and second internal electrodes alternately disposed in the first direction, while having the respective one of the plurality of dielectric layers interposed therebetween, and cover portions disposed on both end surfaces of the capacitance formation portion in the first direction, and
an average thickness of one of the cover portions is 15 μm or less.

### Claim 15 (depends on 1)

The multilayer electronic component of claim 1, wherein a maximum size of the multilayer electronic component in the second direction is 0.66 mm or less and a maximum size of the multilayer electronic component in the third direction is 0.33 mm or less.

### Claim 16

A multilayer electronic component comprising:
a body including a plurality of dielectric layers and first and second internal electrodes alternately disposed in a first direction, while having a respective one of the plurality of dielectric layers interposed therebetween, and including first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in a second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in a third direction;
a first external electrode disposed on the third surface and connected to the first internal electrodes; and
a second external electrode disposed on the fourth surface and connected to the second internal electrodes,
wherein one of the first internal electrodes is spaced apart from the fourth surface and includes a plurality of first conductor portions and first cut-off portions, and one of the second internal electrodes is spaced apart from the third surface and includes a plurality of second conductor portions and second cut-off portions, and
an average value of E1s/F1s×100 is 55 or more, F1 indicates a region of one of the second internal electrodes, opposing E1 in the first direction, E1s indicates an area of the first conductor portion included in E1, and F1s indicates an area of the second conductor portion included in F1, and E1 indicates a region from a first conductor portion which is disposed closest to the second external electrode among the first conductor portions each having thickness and length of 80 nm or more among the plurality of first conductor portions to 10 μm inside the one of the first internal electrodes, based on a cross section of the body in a first-second direction.

### Claim 17 (depends on 16)

The multilayer electronic component of claim 16, wherein an average value of a length of the end of the one of the first internal electrodes is 4.2 μm or less, the length of the end of the one of the first internal electrodes indicates a length of the one of the first internal electrodes from the first conductor portion disposed closest to the second external electrode among the first conductor portions each having the thickness and length of 80 nm or more among the plurality of first conductor portions to the first conductor portion disposed closest to the second external electrode among the first conductor portions each having a length equal to or greater than twice its thickness among the plurality of first conductor portions.

### Claim 18 (depends on 16)

The multilayer electronic component of claim 16, wherein an average thickness of one of the first and second internal electrodes is 0.4 μm or less.

### Claim 19 (depends on 16)

The multilayer electronic component of claim 16, wherein an average thickness of one of the plurality of dielectric layers is 0.45 μm or less.

### Claim 20 (depends on 16)

The multilayer electronic component of claim 16, wherein the body includes a capacitance formation portion including the first and second internal electrodes alternately disposed in the first direction, while having the respective one of the plurality of dielectric layers interposed therebetween, and cover portions disposed on both end surfaces of the capacitance formation portion in the first direction, and
an average thickness of one of the cover portions is 15 μm or less.
