Patent attributes
The EEPROM cell includes a writing unit having a flash cell Metal Oxide Semiconductor (MOS) for receiving from outside a gate selection signal via a gate and a drain selection signal via a drain, and writing one bit data, and a high-voltage MOS whose source is connected to a source of the flash cell MOS to have a symmetrical structure and for receiving the gate selection signal via a gate, and a sensing unit having a first sensing MOS whose source is connected to a power supply voltage, gate to a drain of a second sensing MOS and drain to the drain of the flash cell MOS, and the second sensing MOS whose source is connected to the power supply voltage, gate to the drain of the first sensing MOS and drain to the drain of the high-voltage MOS.
