Abstract:
A method of operating a memory cell can include applying a select pulse at a gate of a select transistor having a first node and a second node, the first node coupled to the first access terminal of the access device, wherein the second node is coupled to a bit line potential node; charging a capacitor having a first plate and a second plate, the first plate coupled to the first node of the select transistor and to the first access terminal of the access device during the select pulse; activating the access device after charging the capacitor; deactivating the select transistor after activating the access device; and discharging the charged capacitor through the resistive switching device.
Abstract:
A memory element programmable between different impedance states can include a first electrode; a switching layer formed in contact with the first electrode and including at least one metal oxide; and a buffer layer in contact with the switching layer. A buffer layer can include a first metal, tellurium, a third element, and a second metal distributed within the buffer layer. A second electrode can be in contact with the buffer layer.
Abstract:
An integrated circuit device can include a plurality of access transistors formed in a substrate having control terminals connected to word lines that extend in a first direction; a plurality of two-terminal programmable impedance elements formed over the substrate; at least one conductive plate structure formed on and having a common conductive connection to, the programmable impedance elements, and extending in at least the first direction; a plurality of storage contacts that extend from a first current terminal of each access transistor to one of the programmable impedance elements; a plurality of bit lines formed over the at least one conductive plate structure, the bit lines extending in a second direction different from the first direction; and a plurality of bit line contacts that extend from a second current terminal of each access transistor through openings in the at least one plate structure to one of the bit lines.