User:Moorematrix/sandbox

A semiconductor material has an electrical conductivity value falling between that of a conductor, like copper, gold, etc. and an insulator, such as glass. Their resistance decreases as their temperature increases, which is behaviour opposite to that of a metal. Their conducting properties may be altered in useful ways by the deliberate, controlled introduction of impurities ("doping") into the crystal structure. Where two differently-doped regions exist in the same crystal, a semiconductor junction is created. The behavior of charge carriers which include electrons, ions and electron holes at these junctions is the basis of diodes, transistors and all modern electronics. Some examples of semiconductors are silicon, germanium, and gallium arsenide. After silicon, gallium arsenide is the second most widely used semiconductor, as it used utilized in in the manufacture of devices such as laser diodes, solar cells, microwave frequency integrated circuits, and so on. Silicon is considered one of the most important components used for fabricating electronic circuits.

Semiconductor devices can display a range of useful properties such as passing current more easily in one direction than other properties such

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