# US 11,908,607 B2 · Multilayer coil component

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- Number: US 11,908,607 B2
- Document ID: US11908607B2
- Status: Granted
- Kind: B2
- Application number: 17/196,924
- Filed: 2021-03-09
- Published: 2021-09-16
- Granted: 2024-02-20
- Earliest claimed: 2020-03-10
- Assignees: Murata Manufacturing Co., Ltd.
- Applicants: Murata Manufacturing Co., Ltd.
- Inventors: Makoto Hiraki; Ryohei Kawabata; Katsuhisa Imada
- Web page: https://patentgrep.com/patent/US11908607B2

## CPC

- H01F 27/2804: {Printed windings}
- H01F 27/292: {Surface mounted devices}
- H01F 17/0013: {with stacked layers}
- H01F 17/04: with magnetic core
- H01F 27/29: Terminals; Tapping arrangements {for signal inductances}
- H01F 41/043: {by thick film techniques}
- H01F 27/2809: {on stacked layers}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

A multilayer coil component includes a multilayer body that includes insulating layers that are stacked; a coil disposed in the multilayer body; and outer electrodes disposed on surfaces of the multilayer body and electrically connected to the coil. The coil includes at least two coil conductor groups that each include at least two coil conductors connected to each other in parallel through two coupling conductors. The at least two coil conductor groups are connected to each other in series through a connecting conductor. The connecting conductor connects the coil conductor between the two coupling conductors in one of the at least two coil conductor groups to the coil conductor between the two coupling conductors in another one of the at least two coil conductor groups.

## Claims

### Claim 1

A multilayer coil component comprising:
a multilayer body that includes insulating layers that are stacked;
a coil disposed in the multilayer body, the coil including at least two coil conductor groups that each include at least two coil conductors connected to each other in parallel through two coupling conductors, the at least two coil conductor groups being connected to each other in series through a connecting conductor, and the connecting conductor connecting part of the coil conductor between the two coupling conductors in one of the at least two coil conductor groups to part of the coil conductor between the two coupling conductors in another one of the at least two coil conductor groups; and
outer electrodes disposed on surfaces of the multilayer body and electrically connected to the coil.

### Claim 2 (depends on 1)

The multilayer coil component according to claim 1, wherein
the connecting conductor has a cross-sectional area at least twice as large as a cross-sectional area of the one coil conductor to which this connecting conductor connects.

### Claim 3 (depends on 1)

The multilayer coil component according to claim 1, wherein
a void portion exists between the coil conductor and the insulating layer.

### Claim 4 (depends on 2)

The multilayer coil component according to claim 2, wherein
a void portion exists between the coil conductor and the insulating layer.