Miniaturized electronic systems with wireless power and near-field communication capabilities

Patent metadata

Field	Value
Publication number	US-10677647-B2
Application number	US-201615578602-A
Country	US
Kind code	B2
Filing date	Jun 1, 2016
Priority date	Jun 1, 2015
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

The invention provides systems and methods for tissue-mounted electronics and photonics. Devices of some embodiments of the invention implement high performance, and optionally flexible, device components having miniaturized formats in device architectures that minimize adverse physical effects to tissue and/or reduce interfacial stresses when mounted on tissue surfaces. In some embodiments, the invention provides complementary tissue mounting strategies providing for mechanically robust and/or long term integration of the present devices, for example, via mounting on tissue surfaces that are not subject to rapid growth or exfoliation processes such as the fingernail, toenail, tooth or earlobe. Devices of the invention are versatile and support a broad range of applications for sensing, actuating and communication including applications for near field communication, for example, for password authentication, electronic transactions and biometric sensing.

First claim

We claim:

1. A tissue mounted electronic system, said system comprising:
a substrate having an inner surface and an outer surface; and
an electronic device comprising one or more inorganic components, organic components or a combination of inorganic and organic components supported by said outer surface of said substrate; wherein said electronic device has a thickness less than or equal to 5 millimeters and has lateral dimensions small enough to provide long-term conformal integration with said tissue without substantial delamination; and
wherein the electronic device comprises one or more near-field communication coils; and
wherein the frequency of each of said near-field communication coils changes by less than 50% upon a change from a planar configuration to a bent configuration characterized by a radius of curvature selected from the range of 1 mm to 20 mm.

2. The system of claim 1 , wherein said inner surface of said substrate conforms to a curvature of a tissue surface.

3. The system of claim 1 , wherein each of said inorganic or organic components is independently positioned within 10 millimeters of an edge of the perimeter of said substrate.

4. The system of claim 1 , wherein said tissue mounted electronic system has a lateral area footprint selected from the range of 1 mm 2 to 500 mm 2 .

5. The system of claim 1 , wherein said tissue mounted electronic system has an average modulus selected from the range of 10 kPa to 100 GPa.

6. The system of claim 1 , wherein said tissue mounted electronic system has a net bending stiffness selected from the range of 0.1 nN m to 1 N m.

7. The system of claim 1 , wherein said tissue mounted electronic system has an areal mass density selected from the range of 0.1 mg cm −2 to 100 mg cm −2 .

8. The system of claim 1 , wherein said tissue mounted electronic system has an overall maximum thickness less than 0.1 mm and at least one region having a thickness selected from the range of 0.05 mm to 0.09 mm.

9. The system of claim 1 , wherein said inner surface of substrate has an area for establishing said conformal contact with said tissue surface selected from the range of 1 mm 2 to 500 mm 2 .

10. The system of claim 1 , wherein said substrate has a perforated geometry including a plurality of apertures extending through said substrate, wherein said apertures allow passage of gas and fluid from said tissue through said system.

11. The system of claim 1 , wherein said apertures provide a porosity of said substrate equal to or greater than 0.01%.

12. The system of claim 1 , wherein said electronic device is a rigid or semi-rigid device, a flexible electronic device or a stretchable electronic device.

13. The system of claim 1 , wherein each of said one or more inorganic or organic components independently comprises one or more thin films, nanoribbons, microribbons, nanomembranes or micromembranes.

14. The system of claim 1 , wherein said one or more inorganic or organic components are independently characterized by a curved geometry selected from the group consisting of: a bent, coiled, interleaved and serpentine geometry.

15. The system of claim 1 , wherein said one or more inorganic or organic components are characterized by one or more island and bridge structures.

16. The system of claim 1 , wherein said electronic device comprises one or more actuators or a component thereof.

17. The system of claim 16 , wherein said one or more actuators or component thereof generate electromagnetic radiation, optical radiation, acoustic energy, an electric field, a magnetic field, heat, an RF signal, a voltage, a chemical change or a biological change.

18. The system of claim 1 , wherein said electronic device comprises one or more communication systems or a component thereof.

19. A method of sensing, actuating or communicating; said method comprising:
providing a tissue mounted electronic system on a tissue surface; wherein said tissue mounted electronic system comprises:
a substrate having an inner surface and an outer surface; and
an electronic device comprising one or more inorganic components, organic components or a combination of inorganic and organic components supported by said outer surface of said substrate; wherein said electronic device has a thickness less than or equal to 5 millimeters and has lateral dimensions small enough to provide long-term conformal integration with said tissue without substantial delamination;
wherein the electronic device comprises one or more near-field communication coils;
wherein the frequency of each of said near-field communication coils changes by less than 50% upon a change from a planar configuration to a bent configuration characterized by a radius of curvature selected from the range of 1 mm to 20 mm; and
sensing, actuating or communicating using said tissue mounted electronic system.

20. A tissue mounted electronic system, said system comprising:
a substrate having an inner surface and an outer surface; and
an electronic device comprising one or more inorganic components, organic components or a combination of inorganic and organic components supported by said outer surface of said substrate; wherein said electronic device has a thickness less than or equal to 5 millimeters and has lateral dimensions small enough to provide long-term conformal integration with said tissue without substantial delamination; and
wherein the electronic device comprises one or more near-field communication coils; and
wherein the effective inductance of each of said near-field communication coils changes by 3% or less upon a change from a planar configuration to a bent configuration characterized by a radius of curvature of 5 mm.

21. The system of claim 1 , comprising at least two near-field communication coils, wherein the near-field communication coils are separated by a dielectric layer.

Assignees

• Univ Illinois

Inventors

• Rogers John A
• Banks Anthony R
• Kim Jeonghyun
• Brown Gregory

Classifications

• G01J1/429

  applied to measurement of ultraviolet light (using counting tubes G01T) · CPC title

• A61B5/14552

  Details of sensors specially adapted therefor · CPC title

• A61B2560/0242

  adapted to measure environmental factors, e.g. temperature, pollution · CPC title

• G06K19/07722 Primary

  the record carrier being multilayered, e.g. laminated sheets (flat articles in general, see B32B37/00) · CPC title

• A61B2560/0214

  of power generation or supply · CPC title