A non-volatile ferroelectric latch includes a sense amplifier having at least one input/output coupled to a bit-line node, a ferroelectric storage capacitor coupled between a plate-line node and the bit-line node, and a load element coupled to the bit-line node. The sense amplifier further includes a...http://www.google.es/patents/US6141237?utm_source=gb-gplus-sharePatente US6141237 - Ferroelectric non-volatile latch circuits