Embedded phase-change memory and method of fabricating the same

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

Reexamination Certificate

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C257S295000, C257S298000, C257S536000, C257S499000, C257S509000, C257S525000, C257S526000, C257S539000, C257S552000, C257S558000, C257SE27004, C257SE27015, C257SE21422, C257SE21683, C257SE21696, C438S003000, C438S666000, C438S947000

Reexamination Certificate

active

07855421

ABSTRACT:
An embedded memory required for a high performance, multifunction SOC, and a method of fabricating the same are provided. The memory includes a bipolar transistor, a phase-change memory device and a MOS transistor, adjacent and electrically connected, on a substrate. The bipolar transistor includes a base composed of SiGe disposed on a collector. The phase-change memory device has a phase-change material layer which is changed from an amorphous state to a crystalline state by a current, and a heating layer composed of SiGe that contacts the lower surface of the phase-change material layer.

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