Anisotropic conductive film and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9520206-B2
Application number	US-201414263673-A
Country	US
Kind code	B2
Filing date	Apr 28, 2014
Priority date	Dec 30, 2013
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

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.

First claim

What is claimed is:

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.

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

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

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

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

6. 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.

7. 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.

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.

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

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

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

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

13. 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.

14. 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.

15. 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.

Assignees

• Samsung Electro Mech

Inventors

• Ji Soo Young
• Lee Jung Hyun

Classifications

• H05K2201/0323

  Carbon · CPC title

• H05K3/323

  by applying an anisotropic conductive adhesive layer over an array of pads · CPC title

• H05K3/365

  by abutting, i.e. without alloying process · CPC title

• H01B1/24 Primary

  the conductive material comprising carbon-silicon compounds, carbon or silicon · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title