| 摘要 |
The present invention provides a highly reliable semiconductor device including a silicon substrate, floating gate electrodes with side walls formed on first surface of silicon substrate with a gate insulator film disposed therebetween, first and second side-wall insulator layers formed on side walls and on a portion of first surface, and a nitrogen-containing extending from the portion of silicon substrate that is in the vicinity of second surface to the portion of silicon substrate that is in the vicinity of the interface between first and second side-wall insulator layers and silicon substrate.
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