Internal Temperature Extraction in Phase-Change Memory Cells During the Reset Operation

作者: Mattia Boniardi , Andrea Redaelli , Innocenzo Tortorelli , Fabio Pellizzer , Agostino Pirovano

DOI: 10.1109/LED.2012.2185674

关键词: Reset (computing)Phase transitionTemperature measurementChalcogenideThermal resistancePhase-change memoryElectronic engineeringAmorphous solidMaterials scienceMemory cell

摘要: The phase-change memory technology is based on a chalcogenide compound able to reversibly switch between two stable states, namely, an amorphous high-resistive state and crystalline low-resistive one, enabling the storage of logical bit. Such phase transition made by electrical pulses delivered cell, force temperature raise within material allow conditions required for change. cell internal needs accurate control, evaluation thermal resistance represents milestone develop thermally efficient architectures gain insights into properties material. An experimental method has been developed then supported electrothermal simulation behavior during program operation, allowing scaling predictions.

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