Main content
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Intro to semiconductors Why atomic theory doesn't work for solids Band theory of solids Conductors insulators and semiconductors
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Intrinsic semiconductors Generation and recombination in semiconductorsExtrinsic semiconductors N-type Extrinsic semiconductors P-typeMinority charge carriers in extrinsic semiconductors
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The PN junction Diffusion, drift & barrier voltage
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Forward biasing a PN junction Reverse biasing a PN junction Forward and reverse current mechanism PN diode characteristics PN breakdown and avalanche
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Half wave rectifiers Full wave rectifiers
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Zener diode & Zener breakdown Zener diode voltage regulator
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Transistor workingParts of a transistorTransistor symbol Transistor current and parameters
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Input characteristics of NPN transistorOutput characteristics of NPN transistor Active, saturation, & cutoff state of NPN transistor
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Transistor as a voltage amplifier Transistor as a switch

About this unit

We cannot imagine our life without computers today. But what makes a computer tick? What's making this technology grow at such an exponential rate? It's all due to semiconductors. As unbelievable as that might sound, altering the properties of semiconductors allows us to build these computers. In this topic, we will explore the world of semiconductors. It's a journey from what semiconductors are all the way to creating building blocks of these computers.