Patent ID: 7910914

Claim:
A nonvolatile semiconductor memory comprising: a semiconductor substrate; an insulating layer that is formed on the semiconductor substrate; a first conductive layer that is formed on the insulating layer; a plurality of first memory devices each including: a first outer semiconductor formed in the first conductive layer, the first outer semiconductor having a first characteristic that is one of a n-type or a p-type; a first inner semiconductor formed in the first outer semiconductor, the first inner semiconductor having a second characteristic that is the other of the n-type or the p-type; and a first resistance change element that is formed in the first inner semiconductor; an interlayer insulating layer that is formed on the first conductive layer; a second conductive layer formed on the interlayer insulating layer; a plurality of second memory devices each including: a second outer semiconductor formed in the second conductive layer, the second outer semiconductor having the first characteristic; a second inner semiconductor formed in the second outer semiconductor, the second inner semiconductor having the second characteristic; and a second resistance change element that is formed in the second inner semiconductor; and a columnar conductor penetrating through the first conductive layer, the interlayer insulating layer, and the second conductive layer in the first resistance change element and the second resistance change element.