Stretchable and foldable electronic devices
First Claim
1. A stretchable and foldable multilayer electronic device, comprising:
- a substrate;
an isolation layer disposed on a portion of the substrate;
a functional layer comprising;
at least one device island; and
at least one stretchable interconnect coupled to the at least one device island;
wherein at least a portion of the device island is in physical communication with the isolation layer; and
wherein at least a portion of the stretchable interconnect is not in physical communication with the isolation layer;
one or more neutral mechanical surface adjusting layers; and
one or more encapsulating layers disposed over the at least one device island,wherein at least one of said one or more neutral mechanical surface adjusting layers is disposed over said functional layer,wherein at least one of said one or more neutral mechanical surface adjusting layers of said multilayer electronic device has a property that is spatially inhomogeneous relative to a location in said multilayer electronic device.
2 Assignments
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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
27 Claims
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1. A stretchable and foldable multilayer electronic device, comprising:
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a substrate; an isolation layer disposed on a portion of the substrate; a functional layer comprising; at least one device island; and at least one stretchable interconnect coupled to the at least one device island; wherein at least a portion of the device island is in physical communication with the isolation layer; and wherein at least a portion of the stretchable interconnect is not in physical communication with the isolation layer; one or more neutral mechanical surface adjusting layers; and one or more encapsulating layers disposed over the at least one device island, wherein at least one of said one or more neutral mechanical surface adjusting layers is disposed over said functional layer, wherein at least one of said one or more neutral mechanical surface adjusting layers of said multilayer electronic device has a property that is spatially inhomogeneous relative to a location in said multilayer electronic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A stretchable and foldable multilayer electronic device comprising:
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a substrate layer; a functional layer; and one or more neutral mechanical surface adjusting layers, wherein said functional layer is supported by said substrate layer, wherein at least one of said one or more neutral mechanical surface adjusting layers is disposed above said functional layer, wherein at least one of said one or more neutral mechanical surface adjusting layers of said multilayer device has a property that is spatially inhomogeneous relative to a location in said multilayer device, wherein a spatially varying neutral mechanical surface is positioned coincident with or proximate to said functional layer based on said spatially inhomogeneous property, and wherein, based on spatial variations in said spatially inhomogeneous property, said spatially varying neutral mechanical surface is positioned at different distances from a top surface of the multilayer device in different spatial regions of the multilayer device, relative to said functional layer. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification