Fabric with fiber including devices

Patent metadata

Field	Value
Publication number	US-11269149-B2
Application number	US-201916689453-A
Country	US
Kind code	B2
Filing date	Nov 20, 2019
Priority date	Jul 28, 2016
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

Provided is a fabric including a plurality of fibers disposed in a fabric configuration. At least one of the fibers comprises a device fiber having a device fiber body including a device fiber body material, having a longitudinal axis along a device fiber body length. A plurality of discrete devices are disposed as a linear sequence within the device fiber body along at least a portion of the device fiber body length. Each discrete device includes at least one electrical contact pad. The device fiber body includes device fiber body material regions disposed between adjacent discrete devices in the linear sequence, separating adjacent discrete devices. At least one electrical conductor is disposed within the device fiber body along at least a portion of the device fiber body length. The electrical conductor is disposed in electrical connection with an electrical contact pad of discrete devices within the device fiber body.

First claim

We claim:

1. A fabric comprising:
a plurality of fibers disposed in a fabric configuration, at least one of the fibers comprising a device fiber; and
each device fiber comprising:
a device fiber body comprising a device fiber body material having a device fiber body surface, and having a longitudinal axis along a device fiber body length;
a plurality of discrete devices disposed as a linear sequence of discrete devices along at least a portion of the device fiber body length, within the device fiber body, not on the device fiber body surface, at least one electrical contact pad disposed on each discrete device;
said device fiber body including device fiber body material regions disposed along the device fiber body longitudinal axis and internal to the device fiber body surface, between adjacent discrete devices in the linear sequence of discrete devices, separating adjacent discrete devices in the linear sequence of discrete devices within the device fiber body;
at least one electrical conductor disposed within the device fiber body along at least a portion of the device fiber body length, the electrical conductor disposed in electrical connection with an electrical contact pad of discrete devices within the device fiber body, the fiber body material encapsulating the electrical conductors, contact pads, and linear sequence of discrete devices within the device fiber body while maintaining the electrical connection between the electrical conductors, contact pads, and discrete devices within the device fiber body.

2. The fabric of claim 1 wherein the device fiber body material comprises a polymeric, electrically insulating material.

3. The fabric of claim 1 wherein the device fiber body material includes at least one material selected from a thermoplastic material, a polyimide material, a thermoset material, a glass material, a polysulfone material, a polycarbonate material, a polymethyl methacrylate material, a polyethylene material, a polyether sulfone material, a polyether ether ketone material, a cyclic olefin copolymer material, and a fluorinated polymer material.

4. The fabric of claim 1 wherein the device fiber body material is transparent to at least one wavelength of radiation.

5. The fabric of claim 1 wherein said device fiber body material has a viscosity that is less than about 10 7 Poise and each said discrete device within the device fiber body has a viscosity greater than about 10 8 Poise, all at a common temperature that is less than about 500° C.

6. The fabric of claim 5 wherein at said common temperature, the electrical conductor has a viscosity greater than about 10 8 Poise.

7. The fabric of claim 5 wherein at said common temperature, the device body material has a viscosity greater than about 10 4 Poise and less than about 10 7 Poise.

8. The fabric of claim 1 wherein the device fiber body length is greater than about 50 meters.

9. The fabric of claim 1 wherein the device fiber body has a cross-sectional extent and wherein a ratio of device fiber body length to device fiber body cross-sectional extent is greater than about 1000.

10. The fabric of claim 1 wherein the device fiber body has a cross-sectional geometry selected from generally circular, generally elliptical, generally rectangular, and generally triangular.

11. The fabric of claim 1 wherein a cross-sectional extent of said device fiber body is greater than a largest dimension of each discrete device disposed within the device fiber body.

12. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises a photonic device.

13. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises a microelectronic device.

14. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises a device selected from diode, photodiode, light emitting diode, laser diode, and photodetector.

15. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises a transistor.

16. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises a semiconductor junction device.

17. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises a monitoring device of a bodily function.

18. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body is a two-terminal electronic device and wherein said at least one electrical contact pad disposed on each discrete device includes at least two electrical contact pads disposed on each discrete device.

19. The fabric of claim 1 wherein said at least one electrical contact pad disposed on each discrete device includes at least three electrical contact pads disposed on each discrete device.

20. The fabric of claim 1 wherein each discrete device disposed within the device fiber body is mechanically rigid.

21. The fabric of claim 1 wherein each discrete device disposed within the device fiber body is spatially oriented within the device fiber body such that contact pads of said discrete device are parallel to the longitudinal axis of the device fiber body.

22. The fabric of claim 1 wherein each contact pad comprises a contact pad material that is electrically conducting.

23. The fabric of claim 1 wherein the linear sequence of discrete devices along at least a portion of the device fiber length includes at least two differently functioning devices.

24. The fabric of claim 1 wherein the linear sequence of devices along at least a portion of the device fiber length includes at least two devices that are separately operable.

25. The fabric of claim 1 wherein each discrete device disposed within the device fiber body is a discrete planar element having a planar dimension that is greater than a vertical dimension of the planar element.

26. The fabric of claim 1 wherein each discrete device disposed within the device fiber body has a first planar surface opposite a second planar surface, and wherein said at least one electrical contact pad comprises a first electrical contact pad disposed on the first planar surface and a second electrical contact pad disposed on the second planar surface.

27. The fabric of claim 26 wherein the first and second planar surfaces are oriented parallel with the device fiber body longitudinal axis.

28. The fabric of claim 1 wherein each discrete device disposed within the device fiber body has a first planar surface opposite a second planar surface, and wherein said at least one electrical contact pad comprises a plurality of electrical contact pads that are disposed on the first planar surface.

29. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body includes an anode and a cathode.

30. The fabric of claim 1 wherein at least one discrete device disposed within the device fiber body comprises at least one electrically semiconducting material, at least one electrically conducting material, and at least one electrically insulating material.

31. The fabric of claim 1 wherein at least one of said discrete devices disposed within the device fiber body comprises a semiconducting material selected from a II-VI semiconducting

Assignees

• Massachusetts Inst Technology

Inventors

• Fink Yoel
• Rein Michael

Classifications

• G02B6/4416 Primary

  Heterogeneous cables · CPC title

• A41D1/005

  with embedded cable or connector · CPC title

• F21Y2103/30

  curved · CPC title

• F21S4/15

  the cables forming a grid, net or web structure · CPC title

• H01B1/026

  Alloys based on copper · CPC title