|Any of various solid crystalline substances, such as germanium or silicon, having electrical conductivity greater than insulators but less than good conductors, and used especially as a base material for computer chips and other electronic devices. Semiconductors are usually very small and complex devices. Semiconductors make it possible to miniaturize electronic components, such as transistors. Not only does miniaturization mean that the components take up less space, it also means that they are faster and require less energy. Semiconductors are used in making solid state electronic devices such as diodes, rectifiers, transistors, and integrated circuits (computer and memory chips).