The study of physical phenomena basic to electronics, such as discharges, thermionic and field emission, and conduction in semiconductors and metals. Physical Electronics deals with the actual phenomenon occurring within the device during its operation. However, in the part of electronics, we study how an electronic device actually works. On the other hand, electronic engineering is the application part of core electronics and under this section, we deal with successive development. Finally, electronics can be defined as "the field of science and engineering which deals with electronic devices and its utilization". Innovations are new ideas, devices, or processes. Innovations are the application of better solutions that meet new requirements, unarticulated needs, or existing market needs. It is proficient through more effective products, processes, services, technologies, or new ideas that are readily available to markets, governments and society. Innovations are something original and novel, as a significant, new that breaks into the market or society.