Nano memory device

Patent metadata

Field	Value
Publication number	US-11778933-B2
Application number	US-202117469080-A
Country	US
Kind code	B2
Filing date	Sep 8, 2021
Priority date	Apr 12, 2018
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

A non-volatile memory circuit in embodiments of the present invention may have one or more of the following features: (a) a logic source, and (b) a semi-conductive device being electrically coupled to the logic source, having a first terminal, a second terminal and a nano-grease with significantly reduced amount of carbon nanotube loading located between the first and second terminal, wherein the nano-grease exhibits non-volatile memory characteristics.

First claim

What is claimed is:

1. A non-volatile memory circuit, comprising:
a nano-grease located between terminals of the non-volatile memory circuit, wherein the nano-grease exhibits non-volatile memory characteristics.

2. The non-volatile memory circuit of claim 1 , further comprising:
a logic source; and
a semi-conductive device being electrically coupled to the logic source.

3. The non-volatile memory circuit of claim 1 , wherein the nano-grease exhibits memristive properties.

4. The non-volatile memory circuit of claim 1 , wherein the nano-grease exhibits memcapacitive properties.

5. The non-volatile memory circuit of claim 1 , wherein the nano-grease exhibits meminductive properties.

6. The non-volatile memory circuit of claim 1 , wherein the nano-grease can store the last known current passing through the nano-grease.

7. The non-volatile memory circuit of claim 1 , wherein the nano-grease can store the last known charge held by the nano-grease.

8. The non-volatile memory circuit of claim 1 , wherein the nano-grease comprises less than 2.5% by weight of single wall carbon nanotubes (SWNT).

9. The non-volatile memory circuit of claim 1 , wherein the nano-grease comprises less than 1.5% by weight of multi wall carbon nanotubes.

10. The non-volatile memory of circuit of claim 2 , wherein the logic source is an analog source.

11. A non-volatile memory circuit, comprising:
a nano-grease located between a first and second terminal of a logic source, wherein the nano-grease exhibits non-volatile memory characteristics.

12. The non-volatile memory circuit of claim 11 , further comprising:
a voltage source; and
a semi-conductive device being electrically coupled to the logic source.

13. The non-volatile memory circuit of claim 11 , further comprising:
a voltage sensor electrically coupled in parallel with a semi-conductive device capable of measuring the voltage drop at the semi-conductive device.

14. The non-volatile memory circuit of claim 11 , wherein the nano-grease exhibits memristive properties.

15. The non-volatile memory circuit of claim 11 , wherein the nano-grease exhibits memcapacitive properties.

16. The non-volatile memory circuit of claim 11 , wherein the nano-grease exhibits meminductive properties.

17. The non-volatile memory circuit of claim 11 , wherein the nano-grease is comprised of a percentage of single wall carbon nanotubes (SWNT).

18. A method for a non-volatile memory circuit, comprising:
disposing a nano-grease between circuit terminals, wherein the nano-grease exhibits non-volatile memory characteristics.

19. The method of claim 18 , further comprising:
electrically coupling a semi-conductive device to a logic source having the circuit terminals.

20. The method of claim 18 , further comprising:
storing electrical information in the nano-grease.

Assignees

• South Dakota Board Of Regents

Inventors

• Tolle Charles
• Hong Haiping
• Widener Christian
• Christensen Greg
• Yang Jack

Classifications

• H10N70/8845 Primary

  Carbon or carbides · CPC title

• C10M103/02

  Carbon; Graphite · CPC title

• H10B63/20

  comprising selection components having two electrodes, e.g. diodes · CPC title

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• C10N2020/00

  Specified physical {or chemical properties or characteristics, i.e. function,} of component of lubricating compositions · CPC title