Abstract:
An integrated circuit includes an array of devices including a physically unclonable function (PUF) for chip authentication. A logic pattern is stored in the devices. The logic pattern is determined in accordance with processing variations during manufacture of the array. The logic pattern is represented with a first state for one or more devices with contact shorts and a second state with one or more devices without contact shorts.
Abstract:
Circuits which self-destruct under radiation are provided. In one aspect, a method for creating a radiation-sensitive circuit is provided. The method includes the step of: connecting an integrated circuit to a power supply and to a ground in parallel with at least one dosimeter device, wherein the dosimeter device is configured to change from being an insulator to being a conductor under radiation. Radiation-sensitive circuits are also provided.
Abstract:
A semiconductor chip includes a chip substrate; a self-destructive layer arranged on the chip substrate, the self-destructive layer including a pyrophoric reactant; and a sealant layer arranged on a surface of the self-destructive layer, on sidewalls of the self-destructive layer, and on the chip substrate such that the sealant layer forms a package seal on the semiconductor chip; wherein the pyrophoric reactant ignites spontaneously upon exposure to air.
Abstract:
Vacuum transistors with carbon nanotube as the collector and/or emitter electrodes are provided. In one aspect, a method for forming a vacuum transistor includes the steps of: covering a substrate with an insulating layer; forming a back gate(s) in the insulating layer; depositing a gate dielectric over the back gate; forming a carbon nanotube layer on the gate dielectric; patterning the carbon nanotube layer to provide first/second portions thereof over first/second sides of the back gate, separated from one another by a gap G, which serve as emitter and collector electrodes; forming a vacuum channel in the gate dielectric; and forming metal contacts to the emitter and collector electrodes. Vacuum transistors are also provided.
Abstract:
An electromechanical device comprises a substrate structure, a set of electrodes, one or more anchor trenches, and one or more multi-faced components. For example, each of the one or more multi-faced components comprises an isolation region formed on a first portion of the surface of the component, a high resistance region formed on a second portion of the surface of the component, and a low resistance region formed on a third portion of the surface of the component. For example, the synapse device is configured to provide an analog resistive output, ranging between the high resistance region and the low resistance region, from at least one of the set of electrodes in response to a pulsed voltage input to at least another one of the set of electrodes.
Abstract:
An electromechanical device comprises a substrate structure, a set of electrodes, one or more anchor trenches, and one or more multi-faced components. For example, each of the one or more multi-faced components comprises an isolation region formed on a first portion of the surface of the component, a high resistance region formed on a second portion of the surface of the component, and a low resistance region formed on a third portion of the surface of the component. For example, the synapse device is configured to provide an analog resistive output, ranging between the high resistance region and the low resistance region, from at least one of the set of electrodes in response to a pulsed voltage input to at least another one of the set of electrodes.
Abstract:
A magnetic trap is configured to arrange at least one diamagnetic rod. The magnetic trap includes first and second magnets on a substrate that forms the magnetic trap defining a template configured to self-assemble diamagnetic material. Each of the first and second magnets extends along a longitudinal direction to define a magnet length, and contact each other to define a contact line. The first magnet and the second magnet have a diametric magnetization in a direction perpendicular to the contact line and the longitudinal direction so as to generate a longitudinal energy potential that traps the diamagnetic rod along the longitudinal direction.
Abstract:
A three-dimensional multispectral imaging sensor and method for forming a three-dimensional multispectral imaging sensor are provided. The three-dimensional multispectral imaging sensor includes a monolithic structure having a plurality of layers. Each of the layers is formed from light detecting materials for detecting light of respective different non-overlapping wavelengths and having respective different bandgaps
Abstract:
The present invention relates generally to a photovoltaic solar cell device and more particularly, to a structure and method of inducing charge inversion in a silicon substrate by using a highly charged passivation layer on an upper side of the silicon substrate. A positively charged passivation layer comprising hafnium oxide may be formed on an insulating layer covering an upper surface of a p-doped silicon substrate and on a metal contact to induce a strong inversion layer in an upper portion of the p-doped silicon substrate.
Abstract:
The present invention relates generally to a photovoltaic solar cell device and more particularly, to a structure and method of inducing charge inversion in a silicon substrate by using a highly charged passivation layer on an upper side of the silicon substrate. A positively charged passivation layer comprising hafnium oxide may be formed on an insulating layer covering an upper surface of a p-doped silicon substrate and on a metal contact to induce a strong inversion layer in an upper portion of the p-doped silicon substrate.