CONFORMAL ELECTRONICS INCLUDING NESTED SERPENTINE INTERCONNECTS

• US 20140340857A1
• Filed: 05/13/2014
• Published: 11/20/2014
• Est. Priority Date: 05/14/2013
• Status: Active Grant

• Current Assignee: Medidata Solutions Incorporated (Dassault Systemes SA)
• Original Assignee: MC10, Inc.
• Inventors: HSU, YUNG-YU, WORK, JOHN, DOWLING, KEVIN J.
• Granted Patent: US 9,706,647 B2
• Time in Patent Office: Days
• US Class Current: 361/749
• CPC Class Codes: A61B 2562/164 the sensor is mounted in or on a conformable substrate or carrier
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/6846 specially adapted to be brought in contact with an internal body part, i.e. invasive
• CPC Class Codes: H01L 23/145 Organic substrates, e.g. plastic
• CPC Class Codes: H01L 23/5386 Geometry or layout of the interconnection structure
• CPC Class Codes: H01L 23/5387 Flexible insulating substrates H01L23/5388 takes precedence
• CPC Class Codes: H01L 2924/15791 The principal constituent being an elastomer, e.g. silicones, isoprene, neoprene
• CPC Class Codes: H05K 1/0283 Stretchable printed circuits
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence
• CPC Class Codes: H05K 2201/0133 Elastomeric or compliant polymer
• CPC Class Codes: H05K 2201/0394 Conductor crossing over a hole in the substrate or a gap between two separate substrate parts
• CPC Class Codes: H05K 2201/09263 Meander
• CPC Class Codes: H05K 2201/09945 Universal aspects, e.g. universal inner layers or via grid, or anisotropic interposer

Abstract

An example stretchable device is described that includes electrical contacts and an interconnect coupling the electrical contacts. The interconnect has a meander-shaped configuration that includes at least one nested serpentine-shaped feature. The interconnect can be conductive or non-conductive. The meander-shaped configuration can be a serpentine structure, providing a serpentine-in-serpentine configuration.

Claims

1. A stretchable electrical device, comprising:

two electrical contacts; and

an electrical interconnect electrically coupling the two electrical contacts;

wherein the electrical interconnect has a meander-shaped configuration comprising at least one nested serpentine-shaped feature.

2. The stretchable electrical device of claim 1, wherein the two electrical contacts are disposed on an elastomeric substrate.

3. The stretchable electrical device of claim 2, wherein the two electrical contacts are in physical communication with the elastomeric substrate, and wherein the electrical interconnect is not in physical communication with the substrate.

4. The stretchable electrical device of claim 1, wherein at least one of the two electrical contacts is in communication with a semiconductor circuit.

5. The stretchable electrical device of claim 1, wherein the electrical contacts are metal contacts.

6. The stretchable electrical device of claim 1, further comprising at least one device component in communication with at least one of the two electrical contacts, and wherein the at least one device component is an electronic device component, an optical device component, an optoelectronic device component, a mechanical device component, a microelectromechanical device component, a nanoelectromechanical device component, a microfluidic device component or a thermal device.

7. The stretchable electrical device of claim 1, wherein the meander-shaped configuration is a serpentine structure, a zig-zag structure, a boustrophedonic structure, a rippled structure, a corrugated structure, or a helical structure.

8. A stretchable electrical device, comprising:

two electrical contacts; and

an electrical interconnect electrically coupling the two electrical contacts;

wherein the electrical interconnect has a serpentine-in-serpentine configuration comprising a serpentine-shaped structure that includes at least one nested serpentine-shaped feature.

9. The stretchable electrical device of claim 8, wherein the two electrical contacts are disposed on an elastomeric substrate.

10. The stretchable electrical device of claim 9, wherein the two electrical contacts are in physical communication with the elastomeric substrate, and wherein the electrical interconnect is not in physical communication with the substrate.

11. The stretchable electrical device of claim 8, wherein at least one of the two electrical contacts is in communication with a semiconductor circuit.

12. The stretchable electrical device of claim 8, wherein the electrical contacts are metal contacts.

13. The stretchable electrical device of claim 8, further comprising at least one device component in communication with at least one of the two electrical contacts, and wherein the at least one device component is an electronic device component, an optical device component, an optoelectronic device component, a mechanical device component, a microelectromechanical device component, a nanoelectromechanical device component, a microfluidic device component or a thermal device.

15. The stretchable device of claim 13, wherein the first discrete operative device or the second discrete operative device includes a metal contact.

16. The stretchable device of claim 13, wherein the first discrete operative device or the second discrete operative device is a semiconductor device.

17. The stretchable device of claim 13, wherein the first discrete operative device, the second discrete operative device, and the stretchable interconnect are fabricated from a same material.

18. The stretchable device of claim 16, wherein the same material is a semiconductor material.

19. The stretchable device of claim 13, wherein the stretchable interconnect is made from a semiconductor material.

20. The stretchable device of claim 18, wherein the first discrete operative device is formed from a semiconductor material, and wherein the stretchable interconnect is made from a different semiconductor material than the first discrete operative device.

21. The stretchable device of claim 18, wherein the semiconductor material is a single crystal semiconductor material.

22. The stretchable device of claim 13, wherein the first discrete operative device and the second discrete operative device are in physical communication with the surface of the stretchable substrate, and wherein the stretchable interconnect is not in physical communication with the surface.

23. The stretchable device of claim 13, wherein the first discrete operative device or the second discrete operative device comprises one or more of a photodetector, a photodiode array, a display, a light-emitting device, a photovoltaic device, a sensor array, a light-emitting diode, a semiconductor laser, an optical imaging system, a transistor, a microprocessor, an integrated circuit, or any combination of thereof.

24. The stretchable device of claim 13, wherein the meander-shaped configuration is a serpentine structure, a zig-zag structure, a boustrophedonic structure, a rippled structure, a corrugated structure, or a helical structure.

25. The stretchable device of claim 13, wherein the meander-shaped configuration comprising the at least one nested serpentine-shaped feature has a serpentine-in-serpentine configuration.

14. A stretchable device, comprising:

a stretchable substrate; and

a stretchable electronic circuit disposed on a surface of the stretchable substrate, the stretchable electronic circuit comprising;

(i) a first discrete operative device;

(ii) a second discrete operative device;

(iii) a stretchable interconnect coupling the first discrete operative device to the second discrete operative device, the stretchable interconnect having a meander-shaped configuration comprising at least one nested serpentine-shaped feature.