Appendage mountable electronic devices conformable to surfaces
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05K-001/00
A61B-005/00
A61B-042/10
A61N-001/04
H05K-001/02
H05K-001/11
H05K-001/16
H05K-001/18
H05K-003/30
A61B-005/01
출원번호
US-0375514
(2016-12-12)
등록번호
US-10052066
(2018-08-21)
발명자
/ 주소
Rogers, John A.
Ying, Ming
Bonifas, Andrew
Lu, Nanshu
출원인 / 주소
The Board of Trustees of the University of Illinois
대리인 / 주소
Lathrop Gage LLP
인용정보
피인용 횟수 :
0인용 특허 :
179
초록▼
Disclosed are appendage mountable electronic systems and related methods for covering and conforming to an appendage surface. A flexible or stretchable substrate has an inner surface for receiving an appendage, including an appendage having a curved surface, and an opposed outer surface that is acce
Disclosed are appendage mountable electronic systems and related methods for covering and conforming to an appendage surface. A flexible or stretchable substrate has an inner surface for receiving an appendage, including an appendage having a curved surface, and an opposed outer surface that is accessible to external surfaces. A stretchable or flexible electronic device is supported by the substrate inner and/or outer surface, depending on the application of interest. The electronic device in combination with the substrate provides a net bending stiffness to facilitate conformal contact between the inner surface and a surface of the appendage provided within the enclosure. In an aspect, the system is capable of surface flipping without adversely impacting electronic device functionality, such as electronic devices comprising arrays of sensors, actuators, or both sensors and actuators.
대표청구항▼
1. An appendage mountable electronic system, said system comprising: an elastomeric substrate having an inner surface and an outer surface, wherein the inner surface defines an enclosure capable of receiving an appendage having a curved surface, and the elastomeric substrate has a resting thickness
1. An appendage mountable electronic system, said system comprising: an elastomeric substrate having an inner surface and an outer surface, wherein the inner surface defines an enclosure capable of receiving an appendage having a curved surface, and the elastomeric substrate has a resting thickness that is less than 10 mm; a first electronic device supported by the inner surface; a second electronic device supported by the outer substrate, wherein the first and second electronic devices are in an opposed configuration with respect to each other and separated by a thickness of the elastomeric substrate to form a pressure sensor whose output varies as a function of elastomeric substrate thickness; each of the first and second electronic devices comprises one or more inorganic semiconductor components, one or more metallic components, or one or more inorganic semiconductor components and one or more metallic components, having a thickness less than 1 mm and a lateral dimension less than 5 mm, having: a net bending stiffness less that or equal to 1×108GPa pm3; and/or a net flexural rigidity less than or equal to 1×10−4 Nm. 2. The system of claim 1, wherein the sensor is a pressure sensor comprising a pair of spatially aligned electrodes with a first electrode supported by the inner surface and a second electrode supported by the outer surface, wherein the pair of electrodes are in electrical communication with each other and having a capacitance between the pair of electrodes that varies with elastomeric substrate thickness between the pair of electrodes. 3. The system of claim 2, wherein an applied pressure to the elastomeric substrate decreases substrate thickness between the pair of electrodes, thereby increasing the capacitance. 4. The system of claim 2, comprising an array of first electrodes and an array of second electrodes, wherein the array of first electrodes and the array of second electrodes are spatially aligned with each other to form an array of capacitors, each capacitor having a pair of electrodes separated by a thickness of the elastomeric substrate, each individual member of the array of capacitors having a capacitance that independently varies as a function of the elastomeric substrate thickness between the electrodes of the individual member of the array of capacitors. 5. The system of claim 4, further comprising a first plurality of electrical interconnects to electrically connect each member of the array of first electrodes and a second plurality of electrical interconnects to electrically connect each member of the second array of electrodes, wherein the electrical interconnects are in a serpentine configuration. 6. The system of claim 5, wherein the first plurality of electrical interconnects is encapsulated by a first encapsulation layer supported by the elastomeric substrate inner surface and the second plurality of electrical interconnects is encapsulated by a second encapsulation layer supported by the elastomeric substrate outer layer. 7. The system of claim 5, further comprising a barrier layer to electrically isolate the first plurality of electrical interconnects from the second plurality of electrical interconnects. 8. The system of claim 1, wherein the first and second electronic devices are in thermal communication with each other, wherein one of the electronic devices is a thermal source and the electronic device is a thermal detector that measures a temperature, and a change in elastomeric substrate thickness between the thermal source and the thermal detector changes the temperature measured by the thermal detector. 9. The system of claim 1, wherein said system is stretchable and configured to conformally contact with a living tissue surface during use. 10. An appendage mountable electronic system, said system comprising: a flexible or stretchable substrate having an inner surface and an outer surface, wherein the inner surface defines an enclosure capable of receiving an appendage having a curved surface; and a flexible or stretchable electronic device comprising one or more sensors, supported by the inner surface of said flexible or stretchable substrate; said sensors comprising one or more inorganic semiconductor components, one or more metallic components, or one or more inorganic semiconductor components and one or more metallic components; wherein at least a portion of said inorganic semiconductor components, metallic components or both have a thickness less than or equal to 500 microns; wherein said flexible or stretchable substrate and said electronic device provide a net bending stiffness of the system low enough such that the inner surface of the substrate is capable of establishing conformal contact with a surface of said appendage provided within said enclosure during use, one or more actuators for tissue stimulation, wherein said one or more actuators are supported by the inner surface of said flexible or stretchable substrate; said actuators comprising one or more inorganic semiconductor components, one or more metallic components, or one or more inorganic semiconductor components and one or more metallic components; wherein at least a portion of said inorganic semiconductor components, metallic components or both have a thickness less than or equal to 500 microns. 11. The system of claim 10 configured for mounting to a fingertip or any portion thereof. 12. The system of claim 11, having a footprint surface area that is between 0.5 cm2 and 2 cm2. 13. The system of claim 11, that is incorporated into a glove finger or a glove fingertip. 14. The system of claim 10, wherein said actuators comprise electrotactile stimulators and said sensors comprise tactile sensors. 15. The system of claim 14, further comprising a wireless transmitter for bi-directional communication between the system and a virtual environment. 16. The system of claim 10, wherein said electronic device comprises a stretchable or flexible electrode array comprising a plurality of electrodes, multiplex circuitry and amplification circuitry. 17. The system of claim 10, wherein said sensors comprise tactile sensors, motion sensors, temperature sensors, or any combination thereof. 18. The system of claim 10, further comprising a wireless transmitter connected to said electronic device. 19. The system of claim 10, further comprising a wireless power source connected to said electronic device. 20. The system of claim 1, wherein the system is configured to adhere to a skin layer by van der Waals interactions during use.
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