A method of forming an integrated ferroelectric/CMOS structure which
effectively separates incompatible high temperature deposition and
annealing processes is provided. The method of the present invention
includes separately forming a CMOS structure and a ferroelectric delivery
wafer. These separate structures are then brought into contact with each
and the ferroelectric film of the delivery wafer is bonded to the upper
conductive electrode layer of the CMOS structure by using a low
temperature anneal step. A portion of the delivery wafer is then removed
providing an integrated FE/CMOS structure wherein the ferroelectric
capacitor is formed on top of the CMOS structure. The capacitor is in
contact with the transistor of the CMOS structure through all the wiring
levels of the CMOS structure.