摘要:
The systems and methods described herein include a sensor for suitable for sensing chemical and biological substances. The sensor comprises a semiconductor layer formed in or on a substrate and a channel having nano-scale dimensions formed in the semiconductor layer, where the structure creates an electrically conducting pathway between a first contact and a second contact on the semiconductor layer. In certain preferred embodiments, the nano-scale channel has a trapezoidal cross-section with an effective width and exposed lateral faces, where the effective width is selected to have same order of magnitude as a Debye length (LD) of the semiconductor material of which the semiconductor layer is formed.
摘要:
An apparatus for separating an analyte from a test sample, such as bacteria from blood components, based on their dielectric properties, localizing or condensing the analyte, flushing substantially all remaining waste products from the test sample, and detecting low concentrations of the analyte. The module array includes a plurality of microfluidic channels with connecting microfluidic waste channels for directing undesired material away from the analyte. An electric field is applied causing a positive dielectrophoretic force to the analyte to capture the analyte. The electric field is applied to at least one electrode having a plurality of concentric rings or concentric arcs extending radially outwards from a center point, electrically connected to a voltage source such that when voltage is applied to the at least one electrode, the concentric rings or concentric arcs alternate in voltage potential.
摘要:
A molecular computer is formed by establishing arrays of spaced-apart input and output pins on opposing sides of a containment, injecting moleware in solution into the containment and then allowing the moleware to bridge the input and output pins. Moleware includes molecular alligator clip-bearing 2-, 3-, and molecular 4-, or multi-terminal wires, carbon nanotube wires, molecular resonant tunneling diodes, molecular switches, molecular controllers that can be modulated via external electrical or magnetic fields, massive interconnect stations based on single nanometer-sized particles, and dynamic and static random access memory (DRAM and SRAM) components composed of molecular controller/nanoparticle or fullerene hybrids. The current-voltage characteristics that result from the bridging between input and output arrays can be ascertained using another computer to identify the bundles of inputs and corresponding outputs that provide a truth table for the specific functions of the computer.
摘要:
An electrician's combination tool box and wire caddy provides a support for multiple spools of wire of different size or gauge, and a storage area below the spools for holding articles and tools needed by the electrician during the wiring of a building. The spools are positioned well above the storage area, enabling a user to access articles in the receptacles, even when spools are being handled to pay out wire.
摘要:
Microelectronic semiconductor integrated circuit devices integrated on a common substrate with molecular electronic devices, having barrier-well-barrier structure with the well being conductive oligomer.
摘要:
A new kind of electronic logic circuit, wherein potential wells (e.g. islands of GaAs in an AlGaAs lattice) are made small enough that the energy levels of carriers within the wells are discretely quantized. This means that, when the bias between the wells is adjusted to align energy levels of the two wells, tunneling will occur very rapidly, whereas when the energy levels are not aligned, tunneling will be greatly reduced. In particular, the wells are optimized to have sharp enough resonant tunneling peaks that the change in potential caused by the difference between the number of carriers stored between two adjacent tunnel wells is itself enough to permit or preclude resonant tunneling. Thus, a tremendous variety of logic functions, including all primitive Boolean functions can be embodied in this logic.
摘要:
The present invention teaches a process for fabrication of quantum-well devices, in which the quantum-wells are configured as small islands of GaAs in an AlGaAs matrix. Typically these islands are roughly cubic, with dimensions of about 100 Angstroms per side. To fabricate these, an n- on n+ epitaxial GaAs structure is grown, and then is etched to an e-beam defined patterned twice, and AlGaAs is epitaxially regrown each time. This defines the quantum wells of GaAs in the AlGaAs matrix, and output contacts are then easily formed.
摘要翻译:本发明教导了量子阱器件的制造方法,其中量子阱在AlGaAs基体中被配置为小的GaAs岛。 通常这些岛大致为立方体,每侧的尺寸约为100埃。 为了制造这些,生长n + n +外延GaAs结构,然后蚀刻到定义图案化的电子束两次,并且AlGaAs每次外延再生长。 这定义了AlGaAs基体中GaAs的量子阱,然后容易地形成输出触点。
摘要:
A light modulator and a high speed spatial light modulator (230) with each pixel (231) made of stacked quarter wavelength layers (232, 234) of heterogeneous material. Each layer (232, 234) is composed of periodic quantum well structures whose optical constants can be strongly perturbed by bias on control electrodes (240, 242). The control electrodes (240, 242) act to either remove light absorbing electrons from the layer or to inject them into each layer. The effect is to produce either a highly relecting mirror or a highly absorbing structure. The spatial light modulator (230) is compatible with semiconductor processing technology. Also, a modulator invoking the Burstein effect in the form of a stack of p-n diodes is disclosed.
摘要:
The present invention teaches a process for fabrication of quantum-well devices, in which the quantum-wells are configured as small islands of GaAs in an AlGaAs matrix. Typically these islands are roughly cubic, with dimensions of about 100 Angstroms per side. To fabricate these, an n- on n+ epitaxial GaAs structure is grown, and then is etched to an e-beam defined patterned twice, and AlGaAs is epitaxially regrown each time. This defines the quantum wells of GaAs in an AlGaAs matrix, and output contacts are then easily formed.
摘要翻译:本发明教导了一种用于制造量子阱器件的方法,其中量子阱被配置为AlGaAs基体中的小的GaAs岛。 通常这些岛大致为立方体,每侧的尺寸约为100埃。 为了制造这些,生长n + n +外延GaAs结构,然后蚀刻到定义图案化的电子束两次,并且AlGaAs每次外延再生长。 这定义了AlGaAs基体中GaAs的量子阱,然后容易地形成输出触点。