摘要:
A molecular wire crossbar memory (MWCM) system is provided. The MWCM comprises a two-dimensional array of a plurality of nanometer-scale devices, each device comprising a junction formed by a pair of crossed wires where one wire crosses another and at least one connector species connecting the pair of crossed wires in the junction. The connector species comprises a bi-stable molecular switch. The junction forms either a resistor or a diode or an asymmetric non-linear resistor. The junction has a state that is capable of being altered by application of a first voltage and sensed by application of a second, non-destructive voltage.
摘要:
A thermoelectric device having a variable cross-section connecting structure includes a first electrode, a second electrode, and a connecting structure connecting the first electrode and the second electrode. The connecting structure has a first section and a second section. The width of the second section is greater than the width of the first section, and the width of the first section is less than a width that is approximately equivalent to a phonon mean free path through the first section.
摘要:
Embodiments of the present invention are related to nanowire-based devices that can be configured and operated as modulators, chemical sensors, and light-detection devices. In one aspect, a nanowire-based device includes a reflective member, a resonant cavity surrounded by at least a portion of the reflective member, and at least one nanowire disposed within the resonant cavity. The nanowire includes at least one active segment selectively disposed along the length of the nanowire to substantially coincide with at least one antinode of light resonating within the cavity. The active segment can be configured to interact with the light resonating within the cavity.
摘要:
One embodiment of the present invention is a method for constructing defect-and-failure-tolerant demultiplexers. This method is applicable to nanoscale, microscale, or larger-scale demultiplexer circuits. Demultiplexer circuits can be viewed as a set of AND gates, each including a reversibly switchable interconnection between a number of address lines, or address-line-derived signal lines, and an output signal line. Each reversibly switchable interconnection includes one or more reversibly switchable elements. In certain demultiplexer embodiments, NMOS and/or PMOS transistors are employed as reversibly switchable elements. In the method that represents one embodiment of the present invention, two or more serially connected transistors are employed in each reversibly switchable interconnection, so that short defects in up to one less than the number of serially interconnected transistors does not lead to failure of the reversibly switchable interconnection. In addition, error-control-encoding techniques are used to introduce additional address-line-derived signal lines and additional switchable interconnections so that the demultiplexer may function even when a number of individual, switchable interconnections are open-defective.
摘要:
Embodiments of the present invention include defect-tolerant demultiplexer crossbars that employ, or that can be modeled by demultiplexer crossbars that employ, threshold logic “TL” elements. The threshold-logic elements provide for tolerance for signal variation on internal signals lines of a defect-tolerant demultiplexer crossbar, and thus tolerance for defects which produce internal signal variation.
摘要:
An electronic system includes a first circuit board having a first optical element and a second circuit board having a second optical element positioned to electronically communicate with the first optical element over free space. The system also includes a cold plate having openings positioned to enable the optical communications over free space is positioned between the first circuit board and the second circuit board. The system further includes a condenser and a fluid conduit containing a cooling fluid configured to absorb heat through the cold plate and to convey the heat to the condenser, where the fluid conduit connects the cold plate and the condenser.
摘要:
A mold with a protruding pattern is provided that is pressed into a thin polymer film via an imprinting process. Controlled connections between nanowires and microwires and other lithographically-made elements of electronic circuitry are provided. An imprint stamp is configured to form arrays of approximately parallel nanowires which have (1) micro dimensions in the X direction, (2) nano dimensions and nano spacing in the Y direction, and three or more distinct heights in the Z direction. The stamp thus formed can be used to connect specific individual nanowires to specific microscopic regions of microscopic wires or pads. The protruding pattern in the mold creates recesses in the thin polymer film, so the polymer layer acquires the reverse of the pattern on the mold. After the mold is removed, the film is processed such that the polymer pattern can be transferred on a metal/semiconductor pattern on the substrate.
摘要:
A control layer for use in a junction of a nanoscale electronic switching device is disclosed. The control layer includes a material that is chemically compatible with a connecting layer and at least one electrode in the nanoscale switching device. The control layer is adapted to control at least one of electrochemical reaction paths, electrophysical reaction paths, and combinations thereof during operation of the device.
摘要:
Fabrication of a photonic crystal is described. A patterned array of nanowires is formed, the nanowires extending outward from a surface, the nanowires comprising a catalytically grown nanowire material. Spaces between the nanowires are filled with a slab material, the patterned array of nanowires defining a patterned array of channels in the slab material. The nanowire material is then removed from the channels.
摘要:
An electronic system includes a first circuit board having a first optical element and a second circuit board having a second optical element positioned to electronically communicate with the first optical element over free space. The system also includes a cold plate having openings positioned to enable the optical communications over free space is positioned between the first circuit board and the second circuit board. The system further includes a condenser and a fluid conduit containing a cooling fluid configured to absorb heat through the cold plate and to convey the heat to the condenser, where the fluid conduit connects the cold plate and the condenser.