How Semiconductors and Transistors Work

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How Semiconductors and Transistors Work

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This podcast is drawn from the "Virtual Lab" of WeCanFigureThisOut.org. This Virtual Lab uses 3D virtual reality animations to explain electronics, microelectronics and nanotechnology. This podcast explains how semiconductors work and how they are made i

John C. Bean - WeCanFigureThisOut.org

Jul 24, 2017 LATEST EPISODE
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21 EPISODES

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Latest episodes from How Semiconductors and Transistors Work

Here is our do it yourself silicon atom kit

Play Episode Listen Later Jul 24, 2017 0:06

First, let's make the nucleus of the atom

Play Episode Listen Later Jul 24, 2017 0:05

Add the first two electrons

Play Episode Listen Later Jul 24, 2017 0:06

And six more

Play Episode Listen Later Jul 24, 2017 0:06

And finally the four bonding electrons

Play Episode Listen Later Jul 24, 2017 0:09

Move them farther apart

Play Episode Listen Later Jul 24, 2017 0:03

Make a 2nd atom and form a bond

Play Episode Listen Later Jul 24, 2017 0:09

Start to make a crystal

Play Episode Listen Later Jul 24, 2017 0:03

Take a look at its planes and facets

Play Episode Listen Later Jul 24, 2017 0:16

Make a bar of silicon crystal

Play Episode Listen Later Jul 24, 2017 0:07

Create a donor atom with 5 bonding electrons

Play Episode Listen Later Jul 24, 2017 0:06

Put it into the silicon crystal

Play Episode Listen Later Jul 24, 2017 0:06

The donor's electron starts to wander

Play Episode Listen Later Jul 24, 2017 0:06

More donors => a cloud of electrons

Play Episode Listen Later Jul 24, 2017 0:09

Put donor atoms into the other end of the bar

Play Episode Listen Later Jul 24, 2017 0:07

Does the bar conduct? Not yet!

Play Episode Listen Later Jul 24, 2017 0:06

But add metal plate just above the bar . . .

Play Episode Listen Later Jul 24, 2017 0:06

The positive plate draws in the electrons

Play Episode Listen Later Jul 24, 2017 0:05

Completing this MOS transistor

Play Episode Listen Later Jul 24, 2017 0:10

This podcast is drawn from the Virtual Lab presentations of WeCanFigureThisOut.org. The copyrighted material of this site was developed under funding from National Science Foundation CCLI, NIRT, MRSEC and NUE programs. This project is led by John C. Be

Play Episode Listen Later Jul 24, 2017 0:33

All of the scenes together

Play Episode Listen Later Jul 24, 2017 2:54

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