# US 2021/0175005 A1 · Inductor component

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- Number: US 2021/0175005 A1
- Document ID: US20210175005A1
- Status: Published application
- Kind: A1
- Application number: 17/103,604
- Filed: 2020-11-24
- Published: 2021-06-10
- Earliest claimed: 2019-12-05
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Hiromi MIYOSHI; Yasuo MATSUMOTO; Kenta KONDO
- Web page: https://patentgrep.com/patent/US20210175005A1

## CPC

- H01F 17/0013: {with stacked layers}
- H01F 27/2804: {Printed windings}
- H01F 17/02: without magnetic core
- H01F 27/323: {Insulation between winding turns, between winding layers}
- H01F 41/041: {Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00)}
- H01F 41/122: {Insulating between turns or between winding layers}
- H01F 27/2809: {on stacked layers}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

An inductor component includes a lamination of an insulating layer and a conductive layer. The insulating layer includes a base made of glass and inorganic particles dispersed in the base. Some of the inorganic particles partially project through the surface of the base into the conductive layer.

## Claims

### Claim 1

An inductor component comprising:
a lamination of an insulating layer and a conductive layer,
wherein the insulating layer includes a base made of an insulating material and inorganic particles dispersed in the base, and
at least some of the inorganic particles partially project through a surface of the base into the conductive layer.

### Claim 2 (depends on 1)

The inductor component according to claim 1, wherein
a maximum particle diameter of the inorganic particles is not larger than about ⅔ of a sum of a thickness of the base and a thickness of the conductive layer.

### Claim 3 (depends on 1)

The inductor component according to claim 1, wherein
the thickness of the conductive layer and the thickness of the base are from about 4 μm to about 20 μm.

### Claim 4 (depends on 2)

The inductor component according to claim 2, wherein
the thickness of the conductive layer and the thickness of the base are from about 4 μm to about 20 μm.

### Claim 5 (depends on 1)

The inductor component according to claim 1, wherein
the thickness of the conductive layer and the thickness of the base are the same.

### Claim 6 (depends on 1)

The inductor component according to claim 1, wherein
the thickness of the conductive layer is about 7.5 μm and the thickness of the base is about 7.5 μm.

### Claim 7 (depends on 1)

The inductor component according to claim 1, wherein
the thickness of the conductive layer and the thickness of the base are different.

### Claim 8 (depends on 1)

The inductor component according to claim 1, wherein
a maximum particle diameter of the inorganic particles is not larger than about 10 μm.

### Claim 9 (depends on 1)

The inductor component according to claim 1, wherein
the thickness of the conductive layer and the thickness of the base are less than about 4 μm or more than about 20 μm.