| 摘要 |
A non-volatile semiconductor memory including a plurality of memory cell transistors, each of the plurality of memory cell transistors includes: a source region having a first conductivity type and in contact with a buried insulating layer on a supporting substrate; a drain-region having the first conductivity type and in contact with the buried insulating layer; and a channel region having the first conductivity type and provided between the source region and the drain region so as to contact the buried insulating layer, wherein a thickness of the channel region is more than one nm and not more than a value obtained by adding seven nm to a half value of a gate length of the memory cell transistor.
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