Graphene coated electronic components

Patent metadata

Field	Value
Publication number	US-10839975-B2
Application number	US-201414202623-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Mar 10, 2014
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

In one aspect, coated electrical components are described herein. In some implementations, a coated electrical component comprises an electrical component and a graphene coating layer disposed on a surface of the electrical component. The graphene coating layer, in some implementations, has a thickness of about 300 nm or less. In another aspect, methods of increasing the service life of an electronic apparatus are disclosed herein. In some implementations, such a method comprises disposing a graphene coating layer on an environment-facing surface of an electronic component of the apparatus, wherein the electronic apparatus exhibits at least a 10 percent improvement in environmental testing performance compared to an otherwise equivalent electronic apparatus not comprising a graphene coating layer, the environmental testing performance comprising performance in a waterproofness test, acetic acid test, sugar solution test, or methyl alcohol test described herein.

First claim

That which is claimed is:

1. A method of increasing a service lifetime of an electronic apparatus disposed within a compartment of a vehicle or on an exterior of a vehicle, the method comprising:
disposing a layer of electrically insulating material on an electronic component of the electronic apparatus;
disposing a single graphene coating layer on the layer of electrically insulating material, the electronic component being a device chosen from an integrated circuit, transformer, resistor, capacitor, inductor, electrical connection or circuit board, the graphene coating layer being substantially continuous across the entire surface of the electronic component; and
disposing the electronic apparatus within a compartment of a vehicle or on an exterior of the vehicle so that the graphene coating layer is exposed to an external environment, the graphene coating layer thereby protecting the electronic component from the external environment,
wherein the single graphene coating layer consists of a single layer of graphene tubes;
wherein the graphene tubes have a horizontal or substantially horizontal orientation;
wherein the electronic apparatus exhibits at least a 10 percent improvement in environmental testing performance compared to an otherwise equivalent graphene coating layer-free electronic apparatus, the environmental testing performance comprising performance in a waterproofness test, acetic acid test, sugar solution test, or methyl alcohol test.

2. The method of claim 1 , wherein the electronic apparatus exhibits at least a 10 percent improvement in two or more of the waterproofness test, acetic acid test, sugar solution test, and methyl alcohol test.

3. The method of claim 1 , wherein the electronic apparatus is disposed within a passenger cabin or cockpit of an aircraft.

4. The method of claim 1 , wherein the electronic component is an integrated circuit.

5. The method of claim 4 , wherein the electronic apparatus is disposed within a passenger cabin or cockpit of an aircraft.

6. The method of claim 1 , wherein the graphene layer is disposed on the exterior of the vehicle and is exposed to an external environment outside the vehicle, the vehicle being an aerospace vehicle.

7. The method of claim 6 , wherein the electronic component is a sensor.

8. A method of increasing a service lifetime of an electronic apparatus disposed within a compartment of a vehicle or on an exterior of a vehicle, the method comprising:
disposing a layer of electrically insulating material on an electronic component of the electronic apparatus;
disposing a graphene coating layer on the layer of electrically insulating material, the electronic component being a device chosen from an integrated circuit, transformer, inductor, or circuit board, the graphene coating layer being substantially continuous across the entire surface of the electronic component; and
disposing the electronic apparatus within a compartment of a vehicle or on an exterior of the vehicle so that the graphene coating layer is exposed to an external environment chosen from a passenger compartment, a cockpit or an environment outside the vehicle, the graphene coating layer thereby protecting the electronic component from the external environment during use of the electronic component,
wherein the graphene coating layer consists of a plurality of graphene platelets, having a flat planar structure, and connected by micro-wires;
wherein the graphene platelets have a diameter from 50 μm to 200 μm;
wherein the micro-wires are formed from metallic nanoparticles, polymer microspheres, or a combination thereof.

9. The method of claim 8 , wherein the electronic apparatus exhibits at least a 10 percent improvement in two or more of the waterproofness test, acetic acid test, sugar solution test, and methyl alcohol test.

10. The method of claim 8 , wherein the graphene platelets have a width to length ratio from about 1:2 to about 1:7.5.

11. The method of claim 8 , wherein the width to length ratio of the graphene platelets are from about 1:2.6 to about 1:7.5.

12. The method of claim 8 , wherein the width to length ratio of the graphene platelets are from about 1:2 to about 1:3.

13. The method of claim 8 , wherein the graphene platelets have a diameter from 50 μm to 150 μm.

14. The method of claim 8 , wherein the electronic component is an integrated circuit.

15. The method of claim 14 , wherein the electronic apparatus is disposed within a passenger cabin or cockpit of an aircraft.

16. The method of claim 8 , wherein the graphene layer is disposed on the exterior of the vehicle and is exposed to an external environment outside the vehicle, the vehicle being an aerospace vehicle.

17. The method of claim 8 , wherein the electronic apparatus exhibits at least a 10 percent improvement in environmental testing performance compared to an otherwise equivalent graphene coating layer-free electronic apparatus, the environmental testing performance comprising performance in a waterproofness test, acetic acid test, sugar solution test, or methyl alcohol test.

Assignees

• Boeing Co

Inventors

• Li Angela W
• Hunt Jeffrey H
• Howe Wayne R

Classifications

• H10W74/40 Primary

  characterised by their materials · CPC title

• H10W74/01

  Manufacture or treatment · CPC title

• C01B2204/04

  Specific amount of layers or specific thickness · CPC title

• B82Y40/00

  Manufacture or treatment of nanostructures · CPC title

• C01B32/184

  Preparation · CPC title