An improved EEPROM device and method for providing a lower device programming
voltage is disclosed. An exemplary EEPROM device is configured with a modified
drawing layer comprising one or more serrated elements configured underneath a
tunneling region of the EEPROM device. The serrated elements can comprise regions
having at least one acute angle structure within the active mask drawing layer
configured to provide a restriction of the oxygen used to grow the gate oxide that
determines the programming voltage of the EEPROM device. In addition the serrated
elements can also be configured with at least two acute angle thin oxide regions
configured in a staggered arrangement to allow for misalignment between the active
layer and the polysilicon layer such that at least one acute angle thin oxide region
is found in the tunneling region underneath the polysilicon layer of the tunneling
region. As a result of a thinner gate oxide region being formed, a lower programming
voltage is needed by the EEPROM device.