Abstract
In this paper, we have proposed a simple and novel way to fabricate poly-Si nanowire (NW)-silicon-oxide-nitride-oxide-silicon (SONOS) devices with various gate configurations. Three types of devices having various gate configurations, such as side gated, -shaped gated , and gate-all-around (GAA), were successfully fabricated and characterized. The experimental results show that, owing to the superior gate controllability over NW channels, much improved transfer characteristics are achieved with the GAA devices, as compared with the other types of devices. Moreover, GAA devices also exhibit the best memory characteristics among all splits, including the fastest programming/erasing efficiency, largest memory window, and best endurance/retention characteristics, highlighting the potential of such scheme for future SONOS applications.
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