Patent ID: 7151687

Claim:
A ferroelectric memory device characterized in comprising: a cell array provided with a plurality of memory cells each having a first ferroelectric capacitor and a second ferroelectric capacitor that are connected to each other in series; a memory cell selection section that selects a specified one of the plurality of memory cells; a potential difference generation section that gives a potential difference across one end and another end of the memory cell; a judging section that judges memory data stored in the memory cell based on a potential at a connection node between the first ferroelectric capacitor and the second ferroelectric capacitor when the potential difference is given to the memory cell; and wherein the memory cell selection section includes a first switch that is provided between the potential difference generation section and the one end of the memory cell, a second switch that is provided between the potential difference generation section and the other end of the memory cell, a third switch that is provided between the judging section and the connection node, and a word line that is electrically connected to the first switch, the second switch and the third switch, for controlling the first switch, the second switch and the third switch.