| http://www.w3.org/ns/prov#value | - When charges, for example, electrons, are injected into the charge trap layer 62 b of the memory cell, it is preferable that the charges should not be accumulated in the non-charge trapping layer 68 interposed between the two memory cells 66L and 66R. For this purpose, the non-charge trapping layer 68 in the embodiments of the present invention is an insulating layer not having a trap region.
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