Lowering the Reset Current and Power Consumption of Phase-Change Memories with Carbon-Doped Ge2Sb2Te5
2012
In this paper, a detailed investigation of the electrical performances of Phase-Change Memory test devices integrating carbon-doped Ge2Sb2Te5 (named GST-C) is reported. PCM devices with 5% of carbon atomic content yields more than 50% of current reduction compared to reference GST devices, with a programming window widely superior to two orders of magnitude and a cycling endurance up to 108 cycles. The reset current reduction is finally validated on shrinked "µ-Wall" test devices, proving that carbon- doped GST is a high promising material for future PCM technology.
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