In this work we will give a detailed account of the charging/discharging ph
enomena occurring in semiconductor nano-crystal memories. Memory transfer c
haracteristics and write/erase transient characteristics are studied for de
vices with different technological parameters. Experimental results are exp
lained by means of a semi-classical model, based on a modified current cont
inuity approach. This model depicts the effect of the tunnel/top dielectric
thickness, dot recovered area and programming voltage on the device perfor
mance. (C) 2000 Academic Press.