Joint short-time and long-time storage device and storage method thereof

摘要

A joint short-time and long-time storage device, including a first electrode layer, a functional material layer connected to the first electrode layer, and a second electrode layer connected to the functional material layer. The first electrode layer is made of inert conductive metal, the second electrode layer is made of active conductive metal, and the functional material layer is made of chalcogenide.

主权项

1. A storage device, comprising: a first electrode layer, a functional material layer connected to the first electrode layer, and a second electrode layer connected to the functional material layer;
wherein:
the first electrode layer is inert conductive metal;the second electrode layer is active conductive metal;the functional material layer is chalcogenide;the first electrode layer is configured to receive external pulse signals;the second electrode layer is configured to receive external pulse signals;when voltage applied between the first electrode layer and the second electrode layer equals a first write pulse, the storage device switches from a high impedance state to a volatile low impedance state and recovers from the volatile low impedance state to the high impedance state after a forgetting time thereby enabling short-time storage; andwhen voltage applied between the first electrode layer and the second electrode layer equals a second write pulse, the storage device switches from the high impedance state to the non-volatile low impedance state thereby enabling long-time storage.