# US 12,112,892 B2 · Multilayer electronic component

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- Number: US 12,112,892 B2
- Document ID: US12112892B2
- Status: Granted
- Kind: B2
- Application number: 17/943,606
- Filed: 2022-09-13
- Published: 2023-07-27
- Granted: 2024-10-08
- Earliest claimed: 2022-01-24
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Hyung Jong Choi; Yoo Jeong Lee; Chung Yeol Lee; Kwang Yeun Won; So Jung An; Kang Ha Lee; Woo Kyung Sung; Myung Jun Park; Jong Ho Lee
- Web page: https://patentgrep.com/patent/US12112892B2

## CPC

- H01G 4/224: Housing; Encapsulation
- H01G 2/065: {for surface mounting, e.g. chip capacitors}
- 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 4/2325: {characterised by the material of the terminals}
- 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: 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 includes a body including a dielectric layer and a first internal electrode and a second internal electrode and having first to sixth surfaces, a first external electrode including a first connection portion on the third surface, a first band portion on the first surface, and a third band portion on the second surface, a second external electrode including a second connection portion on the fourth surface, a second band portion on the first surface, and a fourth band portion on the second surface, an insulating layer disposed on the second surface and extending onto the first and second connection portions, a first plating layer disposed on the first band portion, and a second plating layer disposed on the second band portion. The insulating layer includes glass, and a region disposed on the second surface in the insulating layer has a convex shape in the first direction.

## Claims

### Claim 1

A multilayer electronic component comprising:
a body including a dielectric layer and a first internal electrode and a second internal electrode alternately disposed with the dielectric layer interposed therebetween, the body having a first surface and a second surface opposing each other in a first direction, a third surface and a fourth surface connected to the first and second surfaces and opposing each other in a second direction, and a fifth surface and a sixth surface connected to the first to fourth surfaces and opposing each other in a third direction;
a first external electrode including a first connection portion disposed on the third surface, and a first band portion extending from the first connection portion onto a portion of the first surface;
a second external electrode including a second connection portion disposed on the fourth surface, and a second band portion extending from the second connection portion onto a portion of the first surface;
an insulating layer disposed on the second surface and extending onto the first and second connection portions;
a first plating layer disposed on the first band portion; and
a second plating layer disposed on the second band portion,
wherein the insulating layer includes glass, and a region disposed on the second surface in the insulating layer has a convex shape in the first direction.

### Claim 2 (depends on 1)

The multilayer electronic component of claim 1, wherein in the region disposed on the second surface in the insulating layer, a size in the first direction on a center in the second direction is greater than a size in the first direction on an end in the second direction.

### Claim 3 (depends on 2)

The multilayer electronic component of claim 2, wherein in the region disposed on the second surface in the insulating layer, a size in the first direction on a center in the third direction is greater than a size in the first direction on an end in the third direction.

### Claim 4 (depends on 1)

The multilayer electronic component of claim 1, wherein the first internal electrode is connected to the third surface and is spaced apart from the fourth surface, and the second internal electrode is connected to the fourth surface and is spaced apart from the third surface, and
0.4≤L1a/Lc≤0.8 and 0.4≤L2a/Lc≤0.8 are satisfied, in which L1a is, on the first surface, an average distance from a point spaced apart by G1 from an extension line of the third surface to an external surface of the insulating layer, in the first direction, L2a is on the first surface, an average distance from a point spaced apart by G2 from an extension line of the fourth surface to the external surface of the insulating layer, in the first direction, and Lc is an average distance from a center of the first surface in the second direction to the external surface of the insulating layer, in the first direction,
wherein G1 is an average size of a region in which the third surface and the second internal electrode are spaced apart from each other, in the second direction and G2 is an average size of a region in which the fourth surface and the first internal electrode are spaced apart from each other in the second direction.

### Claim 5 (depends on 1)

The multilayer electronic component of claim 1, wherein H1≥H2 is satisfied, in which H1 is an average distance from the first surface to an internal electrode closest to the first surface among the first and second internal electrodes in the first direction, and H2 is an average distance from an extension line of the first surface to ends of the first and second plating layers disposed on the first and second connection portions in the first direction.

### Claim 6 (depends on 1)

The multilayer electronic component of claim 1, wherein H1<H2 is satisfied, in which H1 is an average distance from the first surface to an internal electrode closest to the first surface among the first and second internal electrodes in the first direction, and H2 is an average distance from an extension line of the first surface to ends of the first and second plating layers disposed on the first and second connection portions in the first direction.

### Claim 7 (depends on 6)

The multilayer electronic component of claim 6, wherein H2<T/2 is satisfied, in which T is an average size of the body in the first direction.

### Claim 8 (depends on 1)

The multilayer electronic component of claim 1, wherein the first and second plating layers are disposed below an extension line of the first surface.

### Claim 9 (depends on 1)

The multilayer electronic component of claim 1, wherein 0.2≤B1/L≤0.4 and 0.2≤B2/L≤0.4 are satisfied, in which L is an average size of the body in the second direction, B1 is an average distance from an extension line of the third surface to an end of the first band portion in the second direction, and B2 is an average distance from an extension line of the fourth surface to an end of the second band portion in the second direction.

### Claim 10 (depends on 1)

The multilayer electronic component of claim 1, further comprising an additional insulating layer disposed on the first surface and disposed between the first band portion and the second band portion.

### Claim 11 (depends on 1)

The multilayer electronic component of claim 1, wherein an average thickness of the dielectric layer is 0.35 μm or less.

### Claim 12 (depends on 1)

The multilayer electronic component of claim 1, wherein an average thickness of the first and second internal electrodes is 0.35 μm or less.

### Claim 13 (depends on 1)

The multilayer electronic component of claim 1, wherein the body comprises a capacitance formation portion including the first and second internal electrodes alternately disposed with the dielectric layer therebetween, and a cover portion disposed on both end surfaces of the capacitance formation portion in the first direction,
wherein an average size of the cover portion in the first direction is 15 μm or less.

### Claim 14 (depends on 1)

The multilayer electronic component of claim 1, wherein an average thickness of the first and second plating layers is less than an average thickness of a region disposed on the first and second connection portions in the insulating layer.

### Claim 15 (depends on 1)

The multilayer electronic component of claim 1, wherein an end portion of the first plating layer is disposed to cover an end of the insulating layer disposed on the first external electrode, and an end portion of the second plating layer is disposed to cover another end of the insulating layer disposed on the second external electrode.

### Claim 16 (depends on 1)

The multilayer electronic component of claim 1, wherein one end portion of the insulating layer is disposed to cover an end of the first plating layer disposed on the first external electrode, and the other end portion of the insulating layer is disposed to cover an end of the second plating layer disposed on the second external electrode.

### Claim 17 (depends on 1)

The multilayer electronic component of claim 1, wherein the first external electrode comprises a first side band portion extending from the first connection portion onto a portion of the fifth and sixth surfaces, and
the second external electrode comprises a second side band portion extending from the second connection portion onto a portion of the fifth and sixth surfaces,
wherein a size of the first and second side band portions in the second direction increases as the first and second side band portions approach the first surface.

### Claim 18 (depends on 1)

The multilayer electronic component of claim 1, wherein the body comprises a 1-3 edge connecting the first surface and the third surface, a 1-4 edge connecting the first surface and the fourth surface, a 2-3 edge connecting the second surface and the third surface, and a 2-4 edge connecting the second surface and the fourth surface,
wherein the 1-3 edge and the 2-3 edge have a form contracted toward a center of the body in the first direction as the 1-3 edge and the 2-3 edge approach the third surface, and the 1-4 edge and the 2-4 edge have a form contracted toward the center of the body in the first direction as the 1-4 edge and the 2-4 edge approach the fourth surface, and
the first external electrode includes edge portions extending from the first connection portion onto the 1-3 edge and the 2-3 edge, and the second external electrode includes edge portions extending from the second connection portion onto the 1-4 edge and the 2-4 edge.

### Claim 19 (depends on 18)

The multilayer electronic component of claim 18, wherein B3≤G1 and B4≤G2 are satisfied, in which B3 is an average distance from an extension line of the third surface to an end of the first edge portion, in the second direction, B4 is an average distance from an extension line of the fourth surface to an end of the second edge portion, in the second direction, G1 is an average size of a region in which the third surface and the second internal electrode are spaced apart, in the second direction, and G2 is an average size of a region in which the fourth surface and the first internal electrode are spaced apart, in the second direction.

### Claim 20 (depends on 1)

The multilayer electronic component of claim 1, wherein the first external electrode including a first connection electrode disposed on the third surface, and a first band electrode disposed on the first surface and connected to the first connection electrode, and
the second external electrode including a second connection electrode disposed on the fourth surface, and a second band electrode disposed on the first surface and connected to the second connection electrode.

### Claim 21 (depends on 20)

The multilayer electronic component of claim 20, wherein the first and second connection electrodes are spaced apart from the fifth and sixth surfaces.

### Claim 22 (depends on 20)

The multilayer electronic component of claim 20, wherein the first and second connection electrodes are spaced apart from the second surface.

### Claim 23 (depends on 20)

The multilayer electronic component of claim 20, wherein the first external electrode further includes a third band electrode disposed on the second surface and connected to the first connection electrode, and
the second external electrode further includes a fourth band electrode disposed on the second surface and connected to the second connection electrode.

### Claim 24 (depends on 20)

The multilayer electronic component of claim 20, wherein the first connection electrode and the second connection electrode include the same metal as a metal included in the first or second internal electrode.

### Claim 25 (depends on 20)

The multilayer electronic component of claim 20, wherein the first band electrode and the second band electrode include firing electrodes including a conductive metal and glass.

### Claim 26 (depends on 20)

The multilayer electronic component of claim 20, wherein the first connection electrode and the second connection electrode include firing electrodes including a conductive metal and glass.

### Claim 27 (depends on 20)

The multilayer electronic component of claim 20, wherein the first band electrode and the second band electrode include plating layers.

### Claim 28 (depends on 20)

The multilayer electronic component of claim 20, wherein the first connection electrode and the second connection electrode include plating layers.

### Claim 29 (depends on 1)

The multilayer electronic component of claim 1, wherein the first external electrode includes a third band portion extending from the first connection portion onto a portion of the second surface, and
the second external electrode includes a fourth band portion extending from the second connection portion onto a portion of the second surface.

### Claim 30 (depends on 29)

The multilayer electronic component of claim 29, wherein 1.1*L1a ≤L1b≤0.9*Lc and 1.1*L2a≤L2b≤0.9*Lc are satisfied, in which L1b is an average distance from the end of the third band portion to the external surface of the insulating layer, in the first direction, and L2b is an average distance from the end of the fourth band portion to the external surface of the insulating layer, in the first direction.