Join Barron Stone for an in-depth discussion in this video Semiconductor materials, part of Electronics Foundations: Semiconductor Devices.
- [Instructor] The materials used in electronic devices…are commonly categorized as being either…an electrical conductor or an electrical insulator.…For example, metals like gold and copper…are used as conductors because they allow electrons…to move freely amongst their atoms.…On the other hand, in materials like glass and rubber,…electrons are bound more tightly to the atoms…and have a harder time moving around.…So those materials make good insulators.…In this course, I'll be focusing on devices…that use a third category of materials that exist somewhere…between conductors and insulators, called semiconductors.…
Semiconductor materials are able to conduct electricity,…but only partly.…They can conduct current better than an insulator,…but not as well as a conductor.…The most commonly used semiconductor material is silicon,…which is used to manufacture everything…from computer chips to solar panels.…Silicon is popular because it's relatively cheap,…it has good electrical properties and it's easy…for manufacturers to fabricate into electronic devices.…
- Semiconductor materials
- Diode applications
- Rectifying a signal
- Detecting the signal peak
- Protecting against large signals, reverse current, and flyback voltage
- Special purpose zener diodes, Schottky diodes, and photodiodes
- NPN and PNP bipolar junction transistors
- Using a BJT as a switch
- Field effect transistors
- Differences between BJTs and MOSFETs
- Operational amplifiers
- Op-amp applications
- Comparing signals
- Buffering signals
- Amplifying signals
- Filtering signals
- Combining signals
Skill Level Intermediate
Learning to use MakerBot 3D Printerswith Kacie Hultgren1h 5m Appropriate for all
2. Diode Applications
3. Special Purpose Diodes
4. Bipolar Junction Transistors
5. Transistor Applications
6. Field Effect Transistors
7. Operational Amplifiers
Feedback circuits6m 30s
8. Op-Amp Applications
Next steps1m 9s
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