 is formed as a film on the stopper layer 00 by depositing, for example, silicon oxide. Then, the hard mask is patterned into a line-and-space (L/S) configuration extending in the word line direction using lithography.  [0000] Continuing, the stopper layer 00, the barrier metal layer 00, the silicon diode layer 00, the barrier metal layer 00, the word line member 00, the barrier metal layer 00, and the upper portion of the inter-layer insulating film 00 