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Field Effect Transistor

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Presentation on theme: "Field Effect Transistor"— Presentation transcript:

1 Field Effect Transistor
COEN 180 Field Effect Transistor

2 FET Strength of an electric field controls the conductivity of a connection. Junction FET (JFET) Metal Oxide Semiconductor Field Effect Transistor (MOSFET).

3 JFET

4 JFET Conductivity Width of channel
Positive gate removes negative carriers from channel. Negative gate widens channel.

5 Metal Oxide Semiconductor FET MOSFET

6 MOSFET Gate is isolated (through SiOxide) from the channel.
Channel allows conductivity. Chokes off with negative gate. Widens with positive gate.

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