Emerging non-CMOS devices and technologies

Complementary metal oxide semiconductor (CMOS) transistors have already reached their fundamental scaling limits and, therefore, it is difficult to scale them further, primarily due to the challenges concerning various quantum mechanical effects. This chapter aims to provide a detailed analysis and comparison of different emerging non-CMOS nano-electronic devices that could potentially help address the CMOS scaling problem. Emerging nanodevices are classified according to their physical phenomenon, finding applications in electrical, magnetic, mechanical, or charge-based nanodevices. Different classes of emerging non-CMOS nanoscale devices that expand beyond the present CMOS scaling limits are presented with their structure, advantages, disadvantages, and potential applications.