Electrically functional fabric for flexible electronics

Patent metadata

Field	Value
Publication number	US-10081887-B2
Application number	US-201213715012-A
Country	US
Kind code	B2
Filing date	Dec 14, 2012
Priority date	Dec 14, 2012
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

Flexible electronically functional fabrics are described that allow for the placement of electronic functionality in flexible substrates such as traditional fabrics. The fabrics can be made using flexible electronically functional fibers or a combination of electronically functional fibers and textile fibers. Electronic devices can be incorporated into the fabric to give it full computing capabilities.

First claim

What is claimed is:

1. A flexible electrically functional woven or non-woven fabric comprising:
a plurality of textile fibers; and
at least one flexible electrically functional fiber capable of one or both of providing energy storage and electrical interconnection to an electrical component, the at least one flexible electrically functional fiber comprising, for a given cross section,
an embedding material, the embedding material being one of a dielectric, piezoelectric, and piezoluminescent material,
a plurality of individual electrically functional fibers within the embedding material, such that the embedding material surrounds at least one of the plurality of individually electrically functional fibers, and
an insulative layer surrounding the embedding material.

2. The functional fabric of claim 1 , wherein the embedding material comprises one or more of porous silicon dioxide, silicon dioxide doped with fluorine, silicon dioxide doped with carbon, hydrogen silsesquioxane (HSQ), methyl silsesquioxane (MSQ), polyimide, polynorbornene, benzocyclobutene, polytetrafluoroethylene (PTFE), and cyclic carbosilane.

3. The functional fabric of claim 1 , wherein the embedding material comprises one or more of hafnium oxide, hafnium silicon oxide, nitride hafnium silicate, lanthanum oxide, lanthanum aluminum oxide, zirconium oxide, zirconium silicon oxide, tantalum oxide, titanium oxide, barium strontium titanium oxide, barium titanium oxide, strontium titanium oxide, yttrium oxide, aluminum oxide, lead scandium tantalum oxide, and lead zinc niobate.

4. The functional fabric of claim 1 , wherein at least one of the plurality of individual electrically functional fibers comprises one or both of a piezoelectric material and a piezoluminescent material.

5. The functional fabric of claim 1 , wherein the insulative layer comprises one or more of polyethylene, polypropylene, polyvinylchloride, PTFE, rayon, nylon, acrylic, polyester, aramid, and silica aerogel.

6. The functional fabric of claim 1 further comprising a planar phased array of radiative elements operably coupled with the at least one flexible electrically functional fiber and configured to one or both of transmit and receive electromagnetic radiation.

7. The functional fabric of claim 6 further comprising conductance shielding for at least a portion of the planar phased array of radiative elements.

8. The functional fabric of claim 6 , wherein at least one of the radiative elements is configured to be controlled independently of another of the radiative elements to provide one or both of multidirectional transmitting and multidirectional receiving of electromagnetic radiation.

9. The functional fabric of claim 1 further comprising one or both of an organic computing element and an inorganic computing element operably coupled with the at least one flexible electrically functional fiber.

10. The functional fabric of claim 9 , wherein the one or both of an organic computing element and an inorganic computing element is affixed to the functional fabric by one or more of:
a thermal compression bond;
solder; and
mating between complementary features of the at least one flexible electrically functional fiber and the at least one of an organic computing element and an inorganic computing element.

11. A flexible display comprising the functional fabric of claim 1 , wherein the at least one flexible electrically functional fiber comprises one or both of a light emitting element and a luminescent fiber.

12. The functional fabric of claim 1 , wherein the at least one flexible electrically functional fiber further comprises textile fiber twisted therewith.

13. The functional fabric of claim 1 further comprising:
at least one memory; and
first and second processors operably coupled with the at least one flexible electrically functional fiber and configured to access the at least one memory, wherein the first and second processors are coordinated to provide parallel processing.

14. A garment comprising:
the functional fabric of claim 1 ; and
at least one integrated circuit die operably coupled with the at least one flexible electrically functional fiber, wherein the at least one integrated circuit die is sized such that flexibility of the functional fabric is maintained at its location.

15. A flexible electrically functional woven or non-woven fabric comprising:
a plurality of textile fibers; and
at least one flexible electrically functional fiber capable of one or both of providing energy storage and electrical interconnection to an electrical component, the at least one flexible electrically functional fiber comprising
a core portion having a cross-sectional width in the range of 1 nanometer (nm)-100 micrometers (μm),
a first conductive and essentially metal layer surrounding the core portion,
a dielectric layer surrounding the first conductive layer,
a second conductive layer surrounding the dielectric layer, and
an insulative layer surrounding the second conductive layer.

16. The functional fabric of claim 15 , wherein the core portion comprises one or more of a textile fiber, a liquid, and a gas.

17. The functional fabric of claim 15 , wherein the dielectric layer is indirect contact with the first conductive layer or the second conductive layer.

18. The functional fabric of claim 15 , wherein one or both of:
one or both of the first and second conductive layers comprises one or more of tin-doped indium-oxide, aluminum-doped zinc-oxide (AZO), indium-doped cadmium-oxide, poly(3,4-ethylenedioxythiophene) (PEDOT), PEDOT with poly(styrene sulfonate) (PSS), and poly(4,4-dioctylcyclopentadithiophene); and
the dielectric layer comprises one of
one or more of porous silicon dioxide, silicon dioxide doped with fluorine, silicon dioxide doped with carbon, hydrogen silsesquioxane (HSQ), methyl silsesquioxane (MSQ), polyimide, polynorbornene, benzocyclobutene, PTFE, and cyclic carbosilane; and
one or more of hafnium oxide, hafnium silicon oxide, nitride hafnium silicate, lanthanum oxide, lanthanum aluminum oxide, zirconium oxide, zirconium silicon oxide, tantalum oxide, titanium oxide, barium strontium titanium oxide, barium titanium oxide, strontium titanium oxide, yttrium oxide, aluminum oxide, lead scandium tantalum oxide, and lead zinc niobate.

19. The functional fabric of claim 15 further comprising a planar phased array of radiative elements operably coupled with the at least one flexible electrically functional fiber and configured to one or both of transmit and receive electromagnetic radiation.

20. The functional fabric of claim 15 further comprising one or both of an organic computing element and an inorganic computing element operably coupled with the at least one flexible electrically functional fiber.

21. The functional fabric of claim 15 , wherein the at least one flexible electrically functional fiber further comprises textile fiber twisted therewith.

22. The functional fabric of claim 15 further comprising:
at least one memory; and
first and second processors operably coupled with the at least one flexible electrically functional fiber and configured to access the at least one memory, wherein the first and second processors are coordinated to provide parallel processing.

23. A flexible display comprising the functional fabric of claim 15 , wherein the at least one flexible electrically functional fiber comprises one or both of a light emitting element and a luminescent fiber.

Assignees

• Intel Corp

Inventors

• Manipatruni Sasikanth
• Liff Shawna M
• Doyle Brian S
• Singh Vivek K

Classifications

• D10B2401/18

  including electronic components · CPC title

• Y10T442/3049

  Including strand precoated with other than free metal or alloy · CPC title

• Y10T442/603

  Including strand or fiber material precoated with other than free metal or alloy · CPC title

• Y10T442/696

  Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.] · CPC title

• Y10T442/3057

  Multiple coatings · CPC title