Patent ID: 9728584
Date: 2017-08-08
CPC Classifications: H01L

Claim:
1. A three dimensional memory array, comprising: a stack comprising a plurality of first conductive lines separated from one another by at least an insulation material; at least one conductive extension arranged to extend substantially perpendicular to the plurality of first conductive lines, such that the at least one conductive extension intersects each of the plurality of first conductive lines; storage element material arranged around the at least one conductive extension; a buffer material disposed concentrically between and in physical contact with the at least one conductive extension and the storage element; and a select device arranged around the storage element material, the select device including an inner concentric conductor material in physical contact with the storage element material at two discrete locations and an outer concentric non-metallic material arranged around the inner concentric conductor material such that the outer concentric non-metallic material is in physical contact with a first surface, a second surface, and a third surface of the inner concentric conductor material, wherein the storage element material is radially adjacent an insulation material separating the plurality of first conductive lines, and a plurality of materials comprising the select device are arranged annularly around the storage element material and are radially adjacent each of the plurality of first conductive lines.