14. SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS
The chapter covers semiconductor electronics, introducing the fundamental concepts of semiconductors, their classifications, and how doping alters their properties. It also explains the formation and behavior of p-n junctions and their applications in diodes and rectifiers.
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Sections
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What we have learnt
- Semiconductors are essential for modern electronic devices due to their unique electrical properties.
- Doping can transform intrinsic semiconductors into more conductive extrinsic types, specifically n-type and p-type semiconductors.
- p-n junctions are crucial components in electronic devices, influencing how diodes rectify voltage.
Key Concepts
- -- Semiconductors
- Materials with conductivity between conductors and insulators, critical for electronic applications.
- -- Doping
- The process of adding impurities to semiconductors to enhance their electrical properties.
- -- pn Junction
- A junction formed between p-type and n-type semiconductors, fundamental in the functioning of diodes.
- -- Intrinsic and Extrinsic Semiconductors
- Intrinsic semiconductors are pure materials, while extrinsic semiconductors are doped with impurities to modify their conductivity.
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