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The Basic Properties of Semiconductors

Anthony Lee Winns Jr

Anthony Lee Winns Jr. is an IT project manager with experience spanning systems support at all levels. Functioning within a demanding, time-sensitive environment, Anthony Lee Winns Jr. offers end-user-driven solutions spanning the full range of connectivity and systems use.

At the foundation of all IT systems are semiconductors, a materials class that goes into making microchips, integrated circuits, active components, and transistors. Types of semiconductors extend beyond silicon and include silicon carbide, germanium, and gallium arsenide.
Copper and other normal conductors use electrons both to transmit the current and carry a charge. By contrast, with semiconductors, electrons, as well as their absence (holes), serve as charge carriers. The process of doping involves the introduction of minute impurities into silicon crystal, which transforms the silicon’s behavior and changes it from being a good insulator into a fairly good (“semi”) conductor.
Through doping, the charge carrier, or conductivity, is defined as either hole or electron based. When N-type doping is combined with P-type doping, the combination creates diodes at junctions, which allow current flow only in one direction. A carefully constructed combination of P and N junctions creates a highly controlled flow of currents that enables a diversity of information-generating activities.

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