The semiconductor industry has been able to follow the performance curve known as Moore’s law . This law proposed by Gordon Moore of Intel Corporation predicts the maximum number of components, that is, transistors, on a chip will roughly double every 18 months . Moore’s law will eventually reach its limits as complementary metal-oxide semiconductors (CMOS) are reaching their maturity around the year 2020 . There is a need for new techniques to enable continuation of the law. The electronics design needs to shift towards devices that are not only minutely small but increasingly capable and scalable. Memristor nano-devices are an important component in fulfilling these needs . They can be scaled down to less than 10nm and offer fast, nonvolatile, low energy electrical switching
“Memristor”, is a two-terminal passive element in which flux is related to the amount of charge that has passed through the device . The existence of memristor is predicted in a paper written by Leon O. Chua in 1971. The memristor is the fourth basic circuit element because it cannot be built using standard linear circuit elements.