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Volume 213, 2019
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Exploiting nanoscale effects in phase change memories

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Abstract

The market launch of Intel’s 3D XPoint™ proves phase change technology has grown mature. Besides storing information in a fast and non-volatile way, phase change memories (PCMs) may facilitate neuromorphic and in-memory computing. In order to establish PCM as a lasting element of the electronics ecosystem, scalability to future technology nodes needs to be assured. Continued miniaturization of PCM devices is not only prescribed in order to achieve memories with higher data density and neuromorphic hardware capable of processing larger amounts of information. Smaller PCM elements are also incentivized by the prospect of increased power efficiency per operation as less material needs to be heated up for switching. For this reason, a good understanding of the effects of confinement on phase change materials is crucial. Here we describe how miniaturization increases the importance of interface effects and we show how in consequence the crystallization kinetics of phase change materials, when confined into nanometer sized structures, can change significantly. Based on this analysis, the implications of such nanoscale effects are discussed and possible ways of exploiting them proposed.

Graphical abstract: Exploiting nanoscale effects in phase change memories

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Article information


Submitted
11 Jun 2018
Accepted
25 Jul 2018
First published
07 Nov 2018

This article is Open Access

Faraday Discuss., 2019,213, 357-370
Article type
Paper

Exploiting nanoscale effects in phase change memories

B. Kersting and M. Salinga, Faraday Discuss., 2019, 213, 357
DOI: 10.1039/C8FD00119G

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    [Original citation] - Published by The Royal Society of Chemistry.

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