Patent ID: 9165633
Filing Date: 2015-10-20
Classification: B82Y,G11C

Abstract:
1. A method of performing write operations on a carbon nanotube based memory cell, the method comprising: applying a source voltage to a first bitline; applying a high voltage to a second bitline; applying a first voltage to a gate of an access transistor, wherein the first voltage comprises an intermediate voltage between the source voltage and the high voltage; while applying the first voltage to the gate of the access transistor, the source voltage to the first bitline, and the high voltage to the second bitline, changing a resistance of a carbon nanotube element to a first resistance value; applying a second voltage to the gate of the access transistor, wherein the second voltage is different than the first voltage; while applying the second voltage to the gate of the access transistor, the source voltage to the first bitline, and the high voltage to the second bitline, changing the resistance of the carbon nanotube element to a second resistance value, wherein the second resistance value is higher than the first resistance value.