Patent ID: 9047957
Filing Date: 2015-06-02
Classification: B82Y,G11C,H01L

Abstract:
1. A programmable read only memory (PROM) device, having a storage electrode that is coupled to a word line, a reference node that is coupled to a bit line and a memory cell comprising a nanotube having a tilted portion which comprises a free end and a fixed portion which is coupled to the reference node, wherein the nanotube comprises a structural defect between the fixed portion and the tilted portion which causes the nanotube to bend towards either the storage electrode or an opposite release electrode such that the free end is electrically connected to either the storage electrode or the release electrode, the tilted portion and the fixed portion being configured to have a different electronic band-gap which are arranged so as to form a diode between the tilted portion and the fixed portion, an anode of the diode being coupled to the word line and a cathode of the diode being coupled to the bit line, and at least one of the storage electrode and the release electrode comprising a surface oxide layer.