Patent ID: 7919803

Claim:
A semiconductor memory device, comprising: a plurality of capacitors each including a columnar lower electrode and an upper electrode with which an upper face and a side face of the lower electrode are covered with a capacitor insulation film therebetween, the capacitors being stacked with interlayer films therebetween; first contact plugs each connecting an upper face of the lower electrode of each of the capacitors in a lower layer with a bottom face of the lower electrode of each of the capacitors in an upper layer; and a second contact plug connecting the upper electrodes of the capacitors in respective layers with each other, wherein each of the first contact plugs is disposed between the upper face of each of the lower electrodes in the lower layer and a bottom face of each of the lower electrodes in the upper layer, and each of the first contact plugs penetrates the upper electrode over the upper face of each of the lower electrodes.