How Semiconductors and Transistors Work episodes:

• July 24, 2017Create a donor atom with 5 bonding electrons

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• July 24, 2017Put it into the silicon crystal

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• July 24, 2017The donor's electron starts to wander

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• July 24, 2017More donors => a cloud of electrons

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• July 24, 2017Put donor atoms into the other end of the bar

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• July 24, 2017Does the bar conduct? Not yet!

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• July 24, 2017But add metal plate just above the bar . . .

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• July 24, 2017The positive plate draws in the electrons

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• July 24, 2017Completing this MOS transistor

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• July 24, 2017This 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

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