MOLECULAR-JUNCTION-NANOWIRE-CROSSBAR-BASED INVERTER, LATCH,...

Details MOLECULAR-JUNCTION-NANOWIRE-CROSSBAR-BASED INVERTER, LATCH,... MOLECULAR-JUNCTION-NANOWIRE-CROSSBAR-BASED INVERTER, LATCH,...

2005-07-19

2005-07-19

Nelms, David (Department: 2818)

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Diode

C257S003000, C257S009000, C326S083000, C326S136000, C327S203000, C327S210000, C327S211000, C716S030000, C716S030000

Reexamination Certificate

active

06919740

ABSTRACT:
Methods for implementing familiar electronic circuits at nanoscale sizes using molecular-junction-nanowire crossbars, and nanoscale electronic circuits produced by the methods. In one embodiment of the present invention, a 3-state inverter is implemented. In a second embodiment of the present invention, two 3-state inverter circuits are combined to produce a transparent latch. The 3-state inverter circuit and transparent-latch circuit can then be used as a basis for constructing additional circuitry, including master/slave flip-flops, a transparent latch with asynchronous preset, a transparent latch with asynchronous clear, and a master/slave flip-flop with asynchronous preset. 3-state inverters can thus be used to compose latches and flip-flops, and latches and flip-flops can be used, along with additional Boolean circuitry, to compose a wide variety of useful, state-maintaining circuits, all implementable within molecular-junction-nanowire crossbars by selectively configuring junctions within the molecular-junction-nanowire crossbars.

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