# US 12,224,101 B2 · Inductor device

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- Number: US 12,224,101 B2
- Document ID: US12224101B2
- Status: Granted
- Kind: B2
- Application number: 17/215,321
- Filed: 2021-03-29
- Published: 2021-09-30
- Granted: 2025-02-11
- Earliest claimed: 2020-03-30
- Assignees: Realtek Semiconductor Corp.
- Applicants: Realtek Semiconductor Corporation
- Inventors: Hsiao-Tsung Yen; Ka-Un Chan
- Web page: https://patentgrep.com/patent/US12224101B2

## CPC

- H01F 27/2804: {Printed windings}
- H01F 17/0013: {with stacked layers}
- H01F 27/2828: {Construction of conductive connections, of leads}
- H01F 27/29: Terminals; Tapping arrangements {for signal inductances}
- H01F 27/2809: {on stacked layers}
- H01F 27/2819: {Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit}
- H01F 2017/004: {with the coil helically wound around an axis without a core}
- H01F 2017/0073: {with a special conductive pattern, e.g. flat spiral}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

An inductor device includes a first wire, a second wire, and a third wire. The first wire includes a plurality of first sub-wires. The second wire includes a plurality of second sub-wires. The sequence of the first sub-wires and the second sub-wires is that at least two first sub-wires of the first sub-wires and at least one second sub-wires of the second sub-wires are disposed to each other in an interlaced manner. The third wire is disposed adjacent to at least two first sub-wires of the first sub-wires.

## Claims

### Claim 1

A inductor device, comprising:
a first wire, comprising:
a plurality of first sub-wires;
a second wire, comprising:
a plurality of second sub-wires, wherein an arranged sequence of the first sub-wires and the second sub-wires comprises one of at least two first sub-wire of the first sub-wires, another one of at least two first sub-wire of the first sub-wires, and at least one of second sub-wire of the second sub-wires; and
a third wire, disposed adjacent to the at least two first sub-wire of the first sub-wires, wherein the third wire partially overlaps at least two of the first sub-wires.

### Claim 2 (depends on 1)

The inductor device of claim 1, wherein the first wire and the second wire are disposed on a first layer, and the third wire is disposed on a second layer.

### Claim 3 (depends on 2)

The inductor device of claim 2, wherein the first layer is different from the second layer.

### Claim 4 (depends on 3)

The inductor device of claim 3, wherein the third wire totally overlaps at least one of first sub-wire of the first sub-wires.

### Claim 5 (depends on 1)

The inductor device of claim 1, wherein the third wire is disposed at an outside of the inductor device.

### Claim 6 (depends on 1)

The inductor device of claim 1, wherein the third wire is disposed between the at least two first sub-wires of the first sub-wires.

### Claim 7 (depends on 1)

The inductor device of claim 1, further comprising:
a connection element, coupled to the third wire and the second sub-wire which is at an inner side of the second sub-wires.

### Claim 8 (depends on 7)

The inductor device of claim 7, wherein the first wire and the second wire are disposed on a first layer, and the third wire and the connection element are disposed on a second layer.

### Claim 9 (depends on 8)

The inductor device of claim 8, wherein the connection element crosses the first sub-wires and the second sub-wires.

### Claim 10 (depends on 1)

The inductor device of claim 1, wherein the second sub-wires are winded to form a plurality of wires at an innermost side of the inductor device.

### Claim 11 (depends on 1)

The inductor device of claim 1, further comprising:
a first input/output terminal, disposed at a first side of the inductor device, and located at the first sub-wire which is at an outer side of the first sub-wires.

### Claim 12 (depends on 11)

The inductor device of claim 11, wherein the first input/output terminal and the third wire are overlapped to each other.

### Claim 13 (depends on 12)

The inductor device of claim 12, further comprising:
a second input/output terminal, disposed at a second side of the inductor device, and located at the second sub-wire which is at an outer side of the second sub-wires.

### Claim 14 (depends on 13)

The inductor device of claim 13, further comprising:
a third input/output terminal, disposed at the second side of the inductor device, and located at the third wire.

### Claim 15 (depends on 14)

The inductor device of claim 14, wherein the first sub-wires are coupled to each other at the first side of the inductor device in an interlaced manner.

### Claim 16 (depends on 15)

The inductor device of claim 15, wherein the second sub-wires are coupled to each other at the second side of the inductor device in an interlaced manner.

### Claim 17 (depends on 16)

The inductor device of claim 16, wherein the second sub-wires cross and is coupled to the first sub-wires the second side of the inductor device in an interlaced manner.