Microelectronics is a subfiel of electronics. Microelectronics, as the name suggests, is related to the study and manufacture of electronic components which are very small (usually micron-scale or smaller, but not always). These devices are made from semiconductors using a process known as photolithography. Many components of normal electronic design are available in microelectronic equivalent: transistors, capacitors, inductors, resistors, diodes and of course insulators and conductors can all be found in microelectronic devices.