# US 9,520,206 B2 · Anisotropic conductive film and method for manufacturing the same

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- Number: US 9,520,206 B2
- Document ID: US9520206B2
- Status: Granted
- Kind: B2
- Application number: 14/263,673
- Filed: 2014-04-28
- Published: 2015-07-02
- Granted: 2016-12-13
- Earliest claimed: 2013-12-30
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Soo Young Ji; Jung Hyun Lee
- Web page: https://patentgrep.com/patent/US9520206B2

## CPC

- H01B 1/24: the conductive material comprising carbon-silicon compounds, carbon or silicon
- H05K 3/323: {by applying an anisotropic conductive adhesive layer over an array of pads}
- H05K 3/365: {by abutting, i.e. without alloying process}
- G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels}
- H05K 2201/0245: Flakes, flat particles or lamellar particles
- H05K 2201/0323: Carbon
- 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})
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

Disclosed herein are an anisotropic conductive film and a method for manufacturing the same. The anisotropic conductive film according to the present invention includes: an insulating resin; and a plurality of conductive graphenes dispersed into the insulating resin.

## Claims

### Claim 1

An anisotropic conductive film comprising:
an insulating resin; and
a plurality of conductive graphenes dispersed into the insulating resin,
wherein the graphenes are oriented in a vertical direction of upper and lower surfaces of the anisotropic conductive film.

### Claim 2 (depends on 1)

The anisotropic conductive film as set forth in claim 1, wherein the graphene has a structure consisting of graphitized carbons having bidirectionality.

### Claim 3 (depends on 1)

The anisotropic conductive film as set forth in claim 1, wherein the graphene has a two-dimensional planar structure.

### Claim 4 (depends on 1)

The anisotropic conductive film as set forth in claim 1, wherein the conductive film has an insulating property in a horizontal direction.

### Claim 5 (depends on 1)

The anisotropic conductive film as set forth in claim 1, wherein the conductive film has an electrical conductivity in a vertical direction.

### Claim 6 (depends on 1)

The anisotropic conductive film as set forth in claim 1, wherein the insulating resin is at least one selected from a liquid crystal polymer (LCP) resin, an epoxy resin, and a resin containing liquid crystal polymer and epoxy.

### Claim 7 (depends on 1)

The anisotropic conductive film as set forth in claim 1, wherein the insulating resin is semi-cured (B-stage) so that flow of the graphenes is fixed.

### Claim 8

A method for manufacturing an anisotropic conductive film, the method comprising:
preparing conductive graphenes;
dispersing the graphenes into an insulating resin; and
orienting the graphenes in a vertical direction by performing a molding process.

### Claim 9 (depends on 8)

The method as set forth in claim 8, wherein the graphene has a structure consisting of graphitized carbons having bidirectionality.

### Claim 10 (depends on 8)

The method as set forth in claim 8, wherein the graphene has a two-dimensional planar structure.

### Claim 11 (depends on 8)

The method as set forth in claim 8, wherein the conductive film has an insulating property in a horizontal direction.

### Claim 12 (depends on 8)

The method as set forth in claim 8, wherein the conductive film has an electrical conductivity in a vertical direction.

### Claim 13 (depends on 8)

The method as set forth in claim 8, wherein the insulating resin is at least one selected from a liquid crystal polymer (LCP) resin, an epoxy resin, and a resin containing liquid crystal polymer and epoxy.

### Claim 14 (depends on 8)

The method as set forth in claim 8, wherein the orienting of the graphenes is performed by the molding process using a magnetic field or an electric field.

### Claim 15 (depends on 8)

The method as set forth in claim 8, further comprising, after the orienting of the graphenes, semi-curing the insulating resin so that flow of the graphenes dispersed into the insulating resin is fixed.