Abstract: A control circuit includes a crossbar array having input columns and output rows configured to store first stored data in the form of high or low resistance states. The input columns are connected to a common electrical input and the output rows are connected to a common summing circuit. The crossbar control circuit may be implemented in a control system to provide for adjustment of the control system to changes in environmental conditions.

Abstract: A method includes providing a crossbar array including a programmable material layer, wherein the crossbar array is configured to function as part of a signal processing system and reprogramming at least one impedance value of the programmable material layer formed at crosspoints of the crossbar array to change the signal processing system.

Abstract: An array of vertically aligned electron emitting nanotips such as multiwall carbon nanotubes are formed for use as a lithographic stamp. Crosswire addressing is used to generate electron emission from particular nanotips within the array. The nanotip array may be used to cure a resist, produce localized electrochemical reactions, establish localized electrostatic charge distributions, or perform other desirable coating or etching process steps so as to create nanoelectronic circuitry or to facilitate molecular or nanoscale processing.

Abstract: A signal processing system is taught to be formed by combining a crossbar array with programming circuitry and signal input circuitry so as to provide a linear transformation from a set of input signals to a set of output signals. Applications of such a system to waveform generation, signal filtering, communications, and pattern recognition are explained. In one embodiment the crossbar array of the signal processing system may be a molecular nanowire crossbar array in which the crossbar interconnects are addressed via dual arrays of scanning probe tips so as to provide an interface between the molecular crossbar electronics and conventional solid state electronics used in the programming and signal processing circuitry.

Abstract: A process including a first step of providing a semiconductor wafer doped of a first conductivity type on a first side and doped of a second conductivity type, opposite to the first conductivity type on the second side, a second step of forming a first array of parallel wires having electrical conductivity on the first side, a third step of forming a second array of parallel wires having electrical conductivity on the second side, a fourth step of forming an insulating layer on the first side after the first array of parallel wires is formed, and a fifth step of forming a programmable impedance layer on the second side after the second array of wires is formed.

Abstract: An array of vertically aligned electron emitting nanotips such as multiwall carbon nanotubes are formed and patterned for use as a lithographic stamp. The spacing and/or arrangement of the nanotips correspond to a predetermined pattern that is desired to be formed on an opposing substrate. Simultaneous actuation of the nanotips by a common electrode forms a pattern on the opposing substrate without any necessary scanning techniques or use of masks. Applying a sufficient electrical potential between the array and the substrate generates electron emission from the tips so as to cure a resist, produce localized electrochemical reactions, establish localized electrostatic charge distributions or perform other desirable coating or etching process steps so as to create nanoelectronic circuitry or to facilitate molecular or nanoscale processing.

Abstract: An arithmetic processing system is taught to be formed by combining a crossbar array with programming circuitry, input circuitry, and post-processing circuitry. The programming circuitry is configured to set crosspoints of the crossbar array to either a relatively high conductivity or a relatively low conductivity state corresponding to a logic 1 or logic 0, thereby programming at least one programmed numerical value into the crossbar array. The input circuitry provides a binary input representative of an input numerical value to columns of the crossbar array. The post-processing circuitry converts an analog output vector produced from the rows of the crossbar array into a binary output representative of an output numerical value mathematically related to the at least one programmed numerical value and the input numerical value.

Abstract: A sensor includes an array of substantially parallel wires, radiant energy sensitive material formed adjacent the array of parallel wires, and output units connected to each of the wires and constructed to provide an analog correlation vector output responsive to radiant energy incident on the sensor. The sensor is constructed as an image sensing device suitable for applications such as pattern recognition and image tracking.