Resistance-switching device having conductive fiber, fabric type resistance-switching device array having the same, memory and sensor having the device or the array

Patent metadata

Field	Value
Publication number	US-9853219-B2
Application number	US-201615213352-A
Country	US
Kind code	B2
Filing date	Jul 18, 2016
Priority date	Jul 17, 2015
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

Provided is a resistance-switching device. The resistance-switching device includes a first wiring including an aluminum oxide surface layer, and a second wiring including a carbon-containing surface layer in contact with the aluminum oxide surface layer. Electrochemical reaction products according to a reaction of aluminum oxide and carbon are generated or destroyed at a contact interface between the aluminum oxide surface layer and the carbon-containing surface layer according to a voltage or a current applied to the first wiring and the second wiring, and low resistance and high resistance are provided between the first wiring and the second wiring by the generation or destruction of the electrochemical reaction products.

First claim

What is claimed is:

1. A resistance-switching device comprising:
a first wiring including an aluminum oxide surface layer and an aluminum layer below the aluminum oxide surface layer, wherein the aluminum oxide surface layer is a native oxide film of the aluminum layer; and
a second wiring including a carbon-containing surface layer in contact with the aluminum oxide surface layer,
wherein:
electrochemical reaction products according to a reaction of aluminum oxide and carbon are generated or destroyed at a contact interface between the aluminum oxide surface layer and the carbon-containing surface layer according to a voltage or a current applied to the first wiring and the second wiring; and
low resistance and high resistance are provided between the first wiring and the second wiring by the generation or destruction of the electrochemical reaction products.

2. The device of claim 1 , wherein at least one of the first wiring and the second wiring has a linear structure.

3. The device of claim 2 , wherein both of the first wiring and the second wiring have a linear structure.

4. The device of claim 1 , wherein the first wiring further includes a base layer below the aluminum layer.

5. The device of claim 1 , wherein the second wiring is a carbon fiber.

6. A resistance-switching device comprising:
a first wiring including an aluminum oxide surface layer; and
a second wiring including a carbon-containing surface layer in contact with the aluminum oxide surface layer,
wherein:
electrochemical reaction products according to a reaction of aluminum oxide and carbon are generated or destroyed at a contact interface between the aluminum oxide surface layer and the carbon-containing surface layer according to a voltage or a current applied to the first wiring and the second wiring;
low resistance and high resistance are provided between the first wiring and the second wiring by the generation or destruction of the electrochemical reaction products; and
the electrochemical reaction products are aluminum oxycarbide.

7. The device of claim 1 , wherein the first wiring and the second wiring serve as a wrap and a weft, respectively, and constitute a fabric having a woven structure.

8. The device of claim 1 , further including an insulating support,
wherein:
the first wiring includes a plurality of rows disposed in parallel, and the rows are disposed by repeatedly being extended on an upper surface of the insulating support, passed through the insulating support, extended on a lower surface of the insulating support, and then passed through the insulating support again; and
the second wiring is disposed by repeatedly being extended on the upper surface of the insulating support to cross a first row of the first wiring, passed through the insulating support, extended on the lower surface of the insulating support to cross a second row of the first wiring, and then passed through the insulating support again.

9. The device of claim 1 , wherein:
any one of the first wiring and the second wiring has a knitted structure; and
the other of the first wiring and the second wiring is disposed to cross the knitted wiring.

10. The device of claim 1 , wherein the resistance-switching device is a unit cell constituting a resistance-switching memory.

11. The device of claim 1 , wherein the resistance-switching device is a sensor, and the high resistance shows different values according to an ambient environment.

12. The device of claim 11 , wherein the ambient environment is a degree of stretching the sensor.

13. The device of claim 11 , wherein the ambient environment is an oxygen concentration or humidity of an ambient environment.

14. A garment which is combined with the resistance-switching device of claim 1 .

15. A resistance-switching device comprising:
a first conductive fiber including an aluminum oxide surface layer and an aluminum layer below the aluminum oxide surface layer, wherein the aluminum oxide surface layer is a native oxide film of the aluminum layer; and
a second conductive fiber including a carbon-containing surface layer in contact with the aluminum oxide surface layer,
wherein the first conductive fiber and the second conductive fiber are woven or knitted, or have a fabric type which is combined on another insulating support by being stitched thereto.

16. The device of claim 15 , wherein the second conductive fiber is a carbon fiber.

Assignees

• Univ Kookmin Ind Acad Coop Found

Inventors

• Lee Mijung
• Seo Youngdae
• KIM Chaewon
• KO Museok
• Jo Anjae
• Kim Younhee
• Kim Suji
• Kim Heejoo

Classifications

• D04B1/24 Primary

  wearing apparel · CPC title

• B82Y10/00

  Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic · CPC title

• D03D15/08

  Textiles & Paper · mapped topic

• A41D1/005

  with embedded cable or connector · CPC title

• H01L45/04

  Electricity · mapped topic