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Improving Care For Disabled Patients, Transistor Anniversary, Whale Strikes. December 16, 2022, Part 2

Science Friday

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What Are Field Effect Transistors?

The first device was called, as you mentioned, a point contact transistor. The ones that are so present today are largely field effect transistors. In the field effect transistor, which was the original conception of Lillian Feld and Shockley, you have a metal contact on the surface. And below that, you have silicon dioxide. That's the oxide layer on silicon. Below that, you had silicon. And the actual electrical activity takes place inside the silicon.

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