Patent ID: 9166156
Filing Date: 2015-10-20
Classification: H01L

Abstract:
1. A memory cell, comprising at least two programmable material structures directly between a pair of electrodes; a first of the programmable material structures having a first edge that extends primarily along a first axis; a second of the programmable material structures having a second edge that is directly against the first edge, and that extends primarily along a second axis that intersects the first axis; and wherein: the second programmable material structure is over the first programmable material structure; the first edge is an upper edge of the first programmable material structure; the second edge is a lower edge of the second programmable material structure; the second material structure has an upper edge in opposing relation to its lower edge; and the memory cell includes a third programmable material structure that has a lower edge which is over and directly against the upper edge of the second programmable material structure.