Applied Materials, Inc.
MIEC and tunnel-based selectors with improved rectification characteristics and tunability

Abstract:

A selector device for a memory cell in a memory array includes a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The separator includes a mixed ionic-electronic conduction material with first ions having a first charge such that the first ions respond to a voltage applied between the first electrode and the second electrode by moving away from the first electrode. The separator is doped near the second electrode with second ions having a second charge that opposes the first charge.