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Material engineering in phase-change memory for low power consumption and multi-level storage

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4 Author(s)
You Yin ; Dept. of Production Sci. & Technol., Gunma Univ., Kiryu, Japan ; Noguchi, T. ; Ohno, H. ; Hosaka, S.

We investigated the influence of the phase-change materials on the performance of memory devices for low power consumption and multi-level storage. Doping N into chalcogenide phase-change materials results in higher resistivity and low-response for temperature. The former characteristic leads to high heating efficiency for phase change and thus reduces the power consumption to about 1/10. The latter characteristic makes it easier to control phase change process in the memory device for multi-level storage. By adopting a top heater structure, 16 distinct resistance levels are demonstrated in our lateral device.

Published in:

Electron Devices and Solid-State Circuits, 2009. EDSSC 2009. IEEE International Conference of

Date of Conference:

25-27 Dec. 2009