Patent ID: 7755093

Claim:
A semiconductor storage device comprising: a first wire which extends in one direction; a second wire which extends in a direction intersecting the first wire; an interlayer dielectric film formed between the second wire and the first wire; and a memory cell which is positioned at a portion of intersection of the first wire with the second wire between the first wire and the second wire, the memory cell comprising a storage element which is formed in a contact hole in the interlayer dielectric film and includes an end which forms a part of a PN junction diode, wherein the second wire is used in selecting the memory cell and includes a P-type semiconductor that is formed on the interlayer dielectric film and outside of the contact hole and forms a part of the PN junction diode, and wherein a plurality of structures, each structure comprising the first wire, the second wire, and the memory cell, are provided three-dimensionally.