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High reset energy is an ongoing issue for phase-change memory (PCM) devices. Prior work demonstrates that smaller PCM switching volume and thermal isolation can reduce the reset energy. In this paper, we fabricate and measure a planar confined PCM device with a multilayer dual-layer stack (DLS) of SiO2/Al2O3 insulator. Devices with contact area of 500 $\times $ 20 nm and lengths of $2~ {\mu }\text{m}$ ...
Thermal confinement has been used to reduce the reset energy of phase-change memory (PCM) devices and prevent heat losses into the surrounding structure. Specifically, for confined PCM cells, most of the heat losses were found to be into the surrounding dielectric. This work explores reset energy reduction attained by implementing a dual-layer dielectric stack as the dielectric in PCM devices to reduce...
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