Stretchable and foldable electronic devices
First Claim
1. A method of making a stretchable and foldable electronic device, said method comprising:
- coating a receiving substrate having a first Young'"'"'s modulus with an isolation layer having a second Young'"'"'s modulus, said isolation layer having a receiving surface, wherein said second Young'"'"'s modulus is less than said first Young'"'"'s modulus;
at least partially supporting an electronic device on said isolation layer receiving surface;
encapsulating at least a portion of said electronic device in an encapsulation layer; and
wherein said isolation layer isolates at least a portion of said electronic device from an applied strain.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein are stretchable, foldable and optionally printable, processes for making devices and devices such as semiconductors, electronic circuits and components thereof that are capable of providing good performance when stretched, compressed, flexed or otherwise deformed. Strain isolation layers provide good strain isolation to functional device layers. Multilayer devices are constructed to position a neutral mechanical surface coincident or proximate to a functional layer having a material that is susceptible to strain-induced failure. Neutral mechanical surfaces are positioned by one or more layers having a property that is spatially inhomogeneous, such as by patterning any of the layers of the multilayer device.
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Citations
21 Claims
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1. A method of making a stretchable and foldable electronic device, said method comprising:
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coating a receiving substrate having a first Young'"'"'s modulus with an isolation layer having a second Young'"'"'s modulus, said isolation layer having a receiving surface, wherein said second Young'"'"'s modulus is less than said first Young'"'"'s modulus; at least partially supporting an electronic device on said isolation layer receiving surface; encapsulating at least a portion of said electronic device in an encapsulation layer; and wherein said isolation layer isolates at least a portion of said electronic device from an applied strain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A stretchable and foldable electronic device comprising:
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a receiving substrate; an isolation layer that at least partially coats one surface of said receiving substrate, said isolation layer having a Young'"'"'s modulus less than or equal to said receiving substrate Young'"'"'s modulus; an electronic device that is at least partially supported by said isolation layer; wherein said isolation layer is capable of providing at least 20% or greater strain isolation when said device is stretched or folded compared to a device without said isolation layer; and an encapsulation layer that at least partially encapsulates said electronic device. - View Dependent Claims (14, 15, 16, 17)
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18. A stretchable and foldable electronic device comprising:
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a support layer, wherein said layer is elastomeric; a functional layer supported by said support layer; an one or more neutral mechanical surface adjusting layer; and an encapsulation layer that at least partially encapsulates said functional layer; wherein at least one or more of any of the layers has a property that is spatially inhomogeneous, thereby generating a neutral mechanical surface coincident or proximate to said functional layer. - View Dependent Claims (19, 20, 21)
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Specification