Extremely stretchable electronics
In embodiments, the present invention may attach at least two isolated electronic components to an elastomeric substrate, and arrange an electrical interconnection between the components in a boustrophedonic pattern interconnecting the two isolated electronic components with the electrical interconnection. The elastomeric substrate may then be stretched such that the components separate relative to one another, where the electrical interconnection maintains substantially identical electrical performance characteristics during stretching, and where the stretching may extend the separation distance between the electrical components to many times that of the unstretched distance.
1. A stretchable electrical interconnect, comprising:
an electrical interconnect for coupling two electrical contacts, said electrical interconnect being arranged boustrophedonically to define rungs between said two electrical contacts, said rungs being substantially parallel with one another, and a plurality of said rungs having substantially the same length and displacement therebetween, wherein the ratio of said length of said plurality of said rungs and said displacement between said plurality of said rungs is at least about 10:1.
2. The stretchable electrical interconnect of claim 1 , wherein said rungs are substantially perpendicular to said contacts.
3. The stretchable electrical interconnect of claim 1 , wherein the ratio is at least 100:1.
4. The stretchable electrical interconnect of claim 1 , wherein said electrical interconnect maintains electrical integrity when the stretchable electrical interconnect is stretched.
5. The stretchable electrical interconnect of claim 4 , wherein said electrical interconnect maintains electrical integrity when said displacement between said contacts is increased by 1000%.
6. The stretchable electrical interconnect of claim 4 , wherein said electrical interconnect maintains electrical integrity when said displacement between said contacts is increased by 10000%.
7. The stretchable electrical interconnect of claim 4 , wherein said electrical interconnect maintains electrical integrity when said displacement between said contacts is increased by 100000%.
8. The stretchable electrical interconnect of claim 1 , wherein the electrical interconnect has a trace width ranging between 0.1-10 microns.
9. The stretchable electrical interconnect of claim 1 , wherein the two electrical contacts are located on an elastomeric substrate.
10. The stretchable electrical interconnect of claim 9 , wherein the electrical contacts are bonded to the elastomeric substrate, and wherein the electrical interconnect is not bonded to the substrate.
11. The stretchable electrical interconnect of claim 9 , wherein the electrical contacts are semiconductor circuits.
12. The stretchable electrical interconnect of claim 9 , wherein the electrical contacts are metal contacts.
13. A stretchable electrical interconnect, comprising:
an electrical interconnect for coupling two electrical contacts, wherein said electrical interconnect is arranged boustrophedonically to define rungs between said two electrical contacts, wherein said electrical interconnect maintains electrical conductivity between the two electrical contacts when a displacement between the two electrical contacts is increased by about 1000%.
14. A device, comprising:
a body having a stretchable surface; and
a stretchable electronic circuit comprising:
(i) a first discrete operative device;
(ii) a second discrete operative device;
(iii) a stretchable interconnect coupling said first discrete operative device to said second discrete operative device, said stretchable interconnect having a substantially boustrophedonic pattern, wherein said stretchable interconnect maintains electrical communication between the first discrete operative device and the second discrete operative device when said stretchable interconnect is stretched up to about 1000%, and wherein said stretchable electronic circuit is disposed on the stretchable surface of said body.
15. The device of claim 14 , wherein the first discrete operative device or the second discrete operative device includes a metal contact.
16. The device of claim 14 , wherein the first discrete operative device or the second discrete operative device is a semiconductor device.
17. The device of claim 14 , wherein the first discrete operative device, the second discrete operative device, and the stretchable interconnect are all made from a same material.
18. The device of claim 17 , wherein the same material is a semiconductor material.
19. The device of claim 14 , wherein the stretchable interconnect is made from a semiconductor material.
20. The device of claim 19 , wherein the first discrete operative device is formed from a semiconductor material, and wherein the stretchable interconnect is made from the same semiconductor material as the first discrete operative device.
21. The device of claim 20 , wherein the semiconductor material is a single crystal semiconductor material.
22. The device of claim 14 , wherein the stretchable interconnect is formed from a different material than the first discrete operative device.
23. The device of claim 14 , wherein the first discrete operative device and the second discrete operative device are in contact with the stretchable surface, and wherein the stretchable interconnect is not in contact with the stretchable surface.
24. The device of claim 23 , wherein a portion of the stretchable surface has a wavy profile.