Patent ID: 6967859

Claim:
A method for driving a semiconductor memory, said semiconductor memory containing: a memory cell block including a plurality of ferroelectric capacitors successively connected to one another each for storing a data in accordance with displacement of polarization of a ferroelectric film thereof and a reading transistor whose gate is connected to one end of said plurality of successively connected ferroelectric capacitors for reading a data by detecting the displacement of the polarization of said ferroelectric film of a selected ferroelectric capacitor selected from said plurality of ferroelectric capacitors; a set line connected to the other end of said plurality of successively connected ferroelectric capacitors; a bit line connected to a drain of said reading transistor at one end thereof; a reset line connected to a source of said reading transistor at one end thereof; and a plurality of word lines respectively corresponding to said plurality of ferroelectric capacitors and provided perpendicularly to said bit line for selecting said selected ferroelectric capacitor, wherein voltages applied to said set line and said reset line for writing or erasing a data in said selected ferroelectric capacitor are a power voltage or a ground voltage.