Patent ID: 8929123
Filing Date: 2015-01-06
Classification: G11C

Abstract:
1. A resistive-switching device capable of implementing multiary addition operation, comprising: a bottom electrode comprising a conductive material layer; a resistive-switching layer comprising a doped metal oxide layer deposited on the bottom electrode; and a top electrode comprising a conductive material layer deposited on the metal oxide layer, wherein: the resistive-switching device has a plurality of resistance values each corresponding to a respective data value stored by the resistive-switching device and ranging from a high resistance value to a low resistance value, wherein the high resistance value corresponds to a data value ‘0’, and the low resistance value corresponds to a largest data value that can be stored by the resistive-switching device; the data value stored by the resistive-switching device is increased by 1 when the resistance value of the resistive-switching device decreases to an adjacent resistance value; and the data value stored by the resistive-switching device is set to ‘0’ when the resistance value of the resistive-switching device increases to the high resistance value and meanwhile the data value stored by a higher-bit resistive-switching device representing an adjacent higher bit is increased by ‘1’, whereby an addition operation in which the adjacent higher bit is increased by ‘1’ is completed.