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www.play-hookey.com | Thu, 03-04-2021 |
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Direct Current
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Alternating Current
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Semiconductors
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Digital
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Logic Families
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Digital Experiments
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Computers
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| Analog | Analog Experiments | Oscillators | Optics | HTML Test | |
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| Basic Semiconductor Structures | Field Effect Transistors (FETs) | Adding More Junctions | Specialized Devices | | ||
| Basic Semiconductor Crystal Structure | The PN Junction | The Transistor | The Early Effect | |
Semiconductors: Basic Structures |
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These pages provide an overview of basic semiconductor construction and behavior.
Every semiconductor design starts with a single crystal of pure material, either silicon or germanium. Then we make some changes to it...
A single type of semiconductor material won't do much by itself, beyond acting as a resistance. But when we put them together, useful things begin to happen.
Extending the crystal to have two junctions increases its usefulness greatly.
That three-layer device is nice, but does exhibit a problem...
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