Data storage device, comprising: a stack of layers formed by an
alternation of first layers with a conductivity of less than
approximately 0.01 (.OMEGA.cm).sup.-1 and second layers with a
conductivity greater than approximately 1 (.OMEGA.cm).sup.-1, a plurality
of columns disposed in the stack of layers, and passing through each
layer in this stack. Each of the columns is formed by at least one
portion of semiconductor material surrounded by least one electrical
charge storage layer electrically insulated from the portion of
semiconductor material and from the stack; and means of applying voltage
to the terminals of the columns comprising a network of moving
microspikes.