Patent ID: 8829592
Filing Date: 2014-09-09
Classification: G11C,H01L

Abstract:
1. A non-volatile storage element comprising: a first electrode including a first material having a first work function; a second electrode including a second material having a second work function higher than the first work function; a first dielectric disposed between the first electrode and the second electrode, the first dielectric having a first bandgap; a second dielectric disposed between the first dielectric and the second electrode, the second dielectric having a second bandgap wider than the first bandgap and being disposed such that a quantum well is created in the first dielectric; and a third dielectric disposed between the first electrode and the first dielectric, the third dielectric being thinner than the second dielectric and having a third bandgap wider than the first bandgap; wherein the first electrode, second electrode, first dielectric and second dielectric are configured such that, at zero bias between the first electrode and the second electrode, a tilt results in conduction bands for each of the first dielectric, the second dielectric, and the third dielectric in a direction downwards toward the second electrode, and a storing of electrons takes place in the quantum well.