P-Type Floating Gate for Retention and P/E Window Improvement of Flash Memory Devices
2007
A flash memory with a lightly doped p-type floating gate is proposed, which improves charge retention and programming/erase (P/E) V th window. Improvement in P/E window is enhanced for cells with smaller capacitance coupling ratio, which is important for future scaled flash memory cells. Both device simulation and experimental verification are presented.
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