A 5 volt only 16M bit flash EEPROM cell with a simple stacked gate structure

A 3.6 mu m/sup 2/ 5 V only 16 Mb flash EEPROM cell was obtained using a simple stacked gate structure and a conventional 0.6 mu m CMOS process. A single 5 V power supply operation of the simple stacked gate cell was realized by optimizing the well impurity concentration and the drain structure and using a gate negative biased erasing operation. It is also shown that the gate negative biased erasing operation mode is very effective in improving the cell endurance characteristics.<>