Patent ID: 7583526
Filing Date: 2009-09-01
Classification: B82Y,G11C,H01H,H01L,Y10S,Y10T

Abstract:
1. A memory cell, comprising first and second nanotube switching elements, each nanotube switching element capable of at least two memory states and each nanotube switching element comprising: an electronic memory element capable of at least two memory states and having cross-coupled first and second inverters wherein an input node of the first inverter is coupled to an output node of the second inverter and an input node of the second inverter is coupled to an output node of the first inverter; wherein the input node of the first inverter is coupled to the control structure of the first nanotube switching element and to the second conductive terminal of the second nanotube switching element; and wherein the input node of the second inverter is coupled to the control structure of the second nanotube switching element and to the second conductive terminal of the first nanotube switching element; and wherein the control circuitry selectively transfers the state of the electronic memory to the state of the nanotube switching elements and selectively transfers the state of the nanotube switching elements to the state of the electronic memory.