Semiconductor Integrated Circuit Technology

To all intents and purposes the only semiconductor which is used to make integrated circuits today is Silicon. Germanium is still widely used to make discrete devices such as transistors — it was the first material to be developed and products made with it will take a long time to pass from the scene — and there are many semiconductors from the III-V, II-VI and IV-VI groups of the periodic table which have significant uses, but not as integrated circuits.