Influence of ISSG tunnel oxide with decoupled plasma nitridation on erase characteristic of NOR-type floating-gate flash memories
Influence of ISSG tunnel oxide layer with DPN on the erase reliability was investigated. The erase performance of flash cells was significantly degraded when DPN was applied. The bulk oxide traps contribution to Vth shift is increased more notably in ISSG tunnel oxide with DPN. The bulk trap density will be increasing with the nitrogen from DPN. The high bulk nitrogen concentration is deleterious to the reliability of flash cell.
decoupled plasma nitridation erasing performance in situ steam generation (issg) tunnel oxide quality