Resistor random access memory cell with L-shaped electrode

Active solid-state devices (e.g. – transistors – solid-state diode – Bulk effect device – Bulk effect switching in amorphous material

Reexamination Certificate

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C257S555000, C257SE21610

Reexamination Certificate

active

07732800

ABSTRACT:
A phase change random access memory PCRAM device is described suitable for use in large-scale integrated circuits. An exemplary memory device has a pipe-shaped first electrode formed from a first electrode layer on a sidewall of a sidewall support structure. A sidewall spacer insulating member is formed from a first oxide layer and a second, “L-shaped,” electrode is formed on the insulating member. An electrical contact is connected to the horizontal portion of the second electrode. A bridge of memory material extends from a top surface of the first electrode to a top surface of the second electrode across a top surface of the sidewall spacer insulating member.

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Lai

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