A high voltage generator using charge pump circuit for low voltage flash memories

An on-chip high voltage generator applicable to low voltage flash memory is introduced. Bootstrapped gate transfer switches of two parallel paths supp ress the voltage loss due to threshold voltage drop of transfer transistors . The simulated results demonstrate that proposed circuit designed with NMO S transistors having 0.8 volt threshold voltage works like an ideal charge pump circuit near 1.0 volt range with enough current driving capability.