The continuing scaling down of complementary metal oxide semiconductor (CMOS) has led researchers to build new devices with nano dimensions. whose behavior will be interpreted based on quantum mechanics. Single-electron devices (SEDs) are promising candidates for future VLSI applications. due to their ultra small dimensions and lower power consumption. https://www.spidertattooz.com/UL-Listed-Charger-for-Merits-Pioneer-Series-Mobility-Scooter/