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The area of contact between two semiconductor materials having different electric properties, or between a semiconductor and a metal. Junctions play a fundamental role in semiconductor devices. The most frequently used is the p-n junction, which is formed between n-type and p-type semiconductors. A p-n junction has rectifying properties as a result of the potential barrier built up across the junction by the diffusion of electrons from the n-type to the p-type material.

Subjects: Computing.

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