Patent ID: 8372662

Claim:
A method for manufacturing a nonvolatile ferroelectric perpendicular electrode cell, comprising: forming a serial PN diode switch to connect a PN diode to a PNPN diode in series; forming a bit line contact node and a capacitor contact node on the serial PN diode switch to connect the bit line contact node to a bit line; depositing an electrode material on the capacitor contact node perpendicular to a surface of the bit line; etching the electrode material to be separated at a predetermined interval into a storage perpendicular electrode and a word line perpendicular electrode; coating a ferroelectric material on the perpendicular electrodes and the etched region between the storage perpendicular electrode and the word line perpendicular electrode to form a ferroelectric layer of a ferroelectric capacitor; and performing an anneal process on the ferroelectric material.