Patent ID: 7291857

Claim:
A non-volatile memory having a plurality of memory cells, the non-volatile memory comprising: an insulating substrate having a plurality of first electrodes extending therethrough from a front surface of the substrate to a rear surface thereof, one or more second electrodes formed above the front surface of the substrate, and a recording layer disposed between the first electrodes and the second electrode and variable in resistance value by electric pulses applied across the first electrodes and the second electrode, wherein at least one of the plurality of memory cells comprises at least one of the plurality of first electrodes, the recording layer and at least one of the second electrode and the plurality of first electrodes are electrically connected to the recording layer in a region constituting the memory cell, wherein the memory cells contain different numbers of the first electrodes, and the average number of the first electrode contained in each of the memory cells is from 0.5×10 1 to 4×10 3 .