# US 10,872,720 B2 · Electronic component

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,872,720 B2
- Document ID: US10872720B2
- Status: Granted
- Kind: B2
- Application number: 15/846,287
- Filed: 2017-12-19
- Published: 2018-06-28
- Granted: 2020-12-22
- Earliest claimed: 2016-12-27
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Noriko Shimizu; Kenichi Araki
- Web page: https://patentgrep.com/patent/US10872720B2

## CPC

- H01F 27/29: Terminals; Tapping arrangements {for signal inductances}
- H01F 17/04: with magnetic core
- H01F 27/24: Magnetic cores
- H01F 27/292: {Surface mounted devices}
- H01F 2017/046: {helical coil made of flat wire, e.g. with smaller extension of wire cross section in the direction of the longitudinal axis}
- H01F 2017/048: {with encapsulating core, e.g. made of resin and magnetic powder}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

An electronic component includes a body having a recessed portion, an inner conductor embedded in the body, and an outer electrode electrically connected to the inner conductor. At least part of the outer electrode is disposed in the recessed portion of the body. The electronic component further includes an insulating layer configured such that at least part of the outer electrode is covered with the insulating layer.

## Claims

### Claim 1

An electronic component comprising:
a body having a recessed portion;
an inner conductor embedded in the body; and
an outer electrode electrically connected to the inner conductor, and at least part of the outer electrode is disposed in the recessed portion of the body,
wherein the recessed portion is continuously disposed on an end face of the body and at least one side surface of the body such that the recessed portion includes a first part formed in the end face and a second part that extends from a bottom surface of the first part along the at least one side surface towards an other end face of the body that is opposite the end face.

### Claim 2 (depends on 1)

The electronic component according to claim 1, further comprising an insulating layer configured such that at least part of the outer electrode is covered with the insulating layer.

### Claim 3 (depends on 2)

The electronic component according to claim 2, wherein:
the outer electrode is continuously disposed in the recessed portion on the end face and the at least one side surface of the body; and
the insulating layer covers the outer electrode on the end face.

### Claim 4 (depends on 3)

The electronic component according to claim 3, wherein a path length of a boundary of a folded portion of the insulating layer is 1.2 times or more a length of a straight line between both ends of the path.

### Claim 5 (depends on 1)

The electronic component according to claim 1, wherein the recessed portion has a depth in the range of 3 to 100 μm.

### Claim 6 (depends on 3)

The electronic component according to claim 3, wherein the recessed portion has a depth in the range of 3 to 100 μm.

### Claim 7 (depends on 1)

The electronic component according to claim 1, wherein the recessed portion is formed by laser irradiation.

### Claim 8 (depends on 1)

The electronic component according to claim 1, wherein the inner conductor is a coil conductor, and the body is a magnetic body.

### Claim 9 (depends on 8)

The electronic component according to claim 8, wherein the magnetic body is formed of a composite material containing a metallic material and a resin material.

### Claim 10 (depends on 1)

The electronic component according to claim 1, wherein:
the body has an additional recessed portion; and
the electronic component further comprises an additional outer electrode connected to the inner conductor, and at least part of the additional outer electrode is disposed in the additional recessed portion of the body.

### Claim 11 (depends on 10)

The electronic component according to claim 10, wherein:
one end of the coil conductor is electrically connected to the outer electrode, and an other end of the coil conductor is electrically connected to the additional outer electrode.

### Claim 12 (depends on 2)

The electronic component according to claim 2, wherein the insulating layer includes a protrusion.

### Claim 13 (depends on 12)

The electronic component according to claim 12, wherein the protrusion extends from a portion of the outer electrode that is disposed in the at least one side surface of the body.

### Claim 14 (depends on 12)

The electronic component according to claim 12, wherein:
the protrusion extends outwardly in a direction away from the at least one side surface.

### Claim 15 (depends on 14)

The electronic component according to claim 14, wherein:
the insulating layer includes an additional protrusion extending outwardly in a direction away from another side surface of the body opposite to the at least one side surface.

### Claim 16 (depends on 1)

The electronic component according to claim 1, wherein the recessed portion is L-shaped.

### Claim 17 (depends on 1)

The electronic component according to claim 1, wherein the recessed portion is U-shaped.

### Claim 18 (depends on 1)

The electronic component according to claim 1, wherein the recessed portion is continuously disposed on the end face and each side surface of the body.

### Claim 19 (depends on 1)

The electronic component according to claim 1, wherein a portion of the body protrudes between one end of the recessed portion and an other end of the recessed portion.