# US 10,374,276 B2 · Wire, manufacturing method therefor, and coil component

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- Number: US 10,374,276 B2
- Document ID: US10374276B2
- Status: Granted
- Kind: B2
- Application number: 15/615,049
- Filed: 2017-06-06
- Published: 2017-12-14
- Granted: 2019-08-06
- Earliest claimed: 2016-06-14
- Assignees: TDK Corporation
- Applicants: TDK Corporation
- Inventors: Toshio Tomonari; Hirohumi Asou; Kosuke Kunitsuka
- Web page: https://patentgrep.com/patent/US10374276B2

## CPC

- H01P 3/06: Coaxial lines
- H01B 1/026: {Alloys based on copper}
- H01B 11/1817: {Co-axial cables with at least one metal deposit conductor}
- H01F 5/00: Coils (superconducting coils H01F6/06; fixed inductances of the signal type H01F17/00)
- H01F 5/06: Insulation of windings
- H01F 27/2823: {Wires (H01F27/2866 takes precedence)}
- H01F 27/29: Terminals; Tapping arrangements {for signal inductances}
- H01F 27/292: {Surface mounted devices}
- H01G 11/36: Nanostructures, e.g. nanofibres, nanotubes or fullerenes
- H01G 11/48: Conductive polymers
- H01P 11/005: {Manufacturing coaxial lines}
- H01B 3/18: mainly consisting of organic substances {(organic macromolecular compounds or compositions C08)}
- H01F 27/00: Details of transformers or inductances, in general
- H01F 30/00: Fixed transformers not covered by group H01F19/00
- H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B)
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- 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

Disclosed herein is a wire that includes: a core wire made of a conductor; an insulating film covering an outer periphery of the core wire; a catalyst adsorption film covering an outer periphery of the insulating film, the catalyst adsorption film including a catalyst serving as a reaction start point of electroless plating; and an outer periphery conductor covering an outer periphery of the catalyst adsorption film.

## Claims

### Claim 1

A wire comprising:
a core wire made of a conductor;
an insulating film covering an outer periphery of the core wire;
a catalyst adsorption film covering an outer periphery of the insulating film, the catalyst adsorption film including a catalyst serving as a reaction start point of electroless plating; and
an outer periphery conductor covering an outer periphery of the catalyst adsorption film,
wherein the catalyst adsorption film includes polypyrrole.

### Claim 2 (depends on 1)

The wire as claimed in claim 1, wherein a diameter of the core wire is 20 μm to 100 μm.

### Claim 3 (depends on 2)

The wire as claimed in claim 2, wherein a thickness of the outer periphery conductor is 1.0 μm to 5.0 μm.

### Claim 4

A method of manufacturing a wire, the method comprising:
preparing a coated conducting wire having a structure in which an outer periphery of a core wire made of a conductor is covered with an insulating film;
forming a catalyst adsorption film on an outer periphery of the coated conducting wire; and
performing electroless plating with a catalyst absorbed to the catalyst adsorption film used as a reaction start point to form an outer periphery conductor on an outer periphery of the catalyst adsorption film; and
performing an electroplating on the outer periphery conductor.

### Claim 5 (depends on 4)

The method of manufacturing the wire as claimed in claim 4, wherein the forming the catalyst adsorption film includes:
forming a raw material of the catalyst adsorption film that is substantially free from the catalyst on the outer periphery of the coated conducting wire; and
adding the catalyst to the raw material to form the catalyst adsorption film.

### Claim 6

A wire comprising:
a core wire made of a conductor;
an insulating film covering an outer periphery of the core wire;
a catalyst adsorption film covering an outer periphery of the insulating film, the catalyst adsorption film including a catalyst serving as a reaction start point of electroless plating; and
an outer periphery conductor covering an outer periphery of the catalyst adsorption film,
wherein the insulating film is thinner than the outer periphery conductor.

### Claim 7 (depends on 6)

The wire as claimed in claim 6, wherein the catalyst adsorption film includes polypyrrole.

### Claim 8 (depends on 6)

The wire as claimed in claim 6, wherein a thickness of the outer periphery conductor is 1.0 μm to 5.0 μm.

### Claim 9 (depends on 8)

The wire as claimed in claim 8, wherein a diameter of the core wire is 20 μm to 100 μm.

### Claim 10 (depends on 8)

The wire as claimed in claim 8, wherein the outer periphery conductor is a plated layer.