A non-volatile memory cell includes a semiconductor substrate with isolation structures formed therein and thereby transistor region and capacitor region are defined therein. A conductor is disposed over the isolation structures, the transistor region and a first-type doped well disposed in the capacitor region. The conductor includes a capacitor portion disposed over the first-type doped well, a transistor portion disposed over the transistor region, a first edge disposed over the isolation structure at a side of the transistor region, and an opposite second edge disposed over the first-type doped well. Two first ion doped wells are disposed in the transistor region and respectively at two sides of the transistor portion, and constitutes a transistor with the transistor portion. A second ion doped region is disposed in the capacitor region excluding the conductor and constitutes a capacitor with the capacitor portion.