MOSFET has a thin layer of Silicon Oxide at the Gate terminal, which acts as Select one:a. Semiconductorb. Inductorc. Capacitord. Resistor
Question
MOSFET has a thin layer of Silicon Oxide at the Gate terminal, which acts as Select one:a. Semiconductorb. Inductorc. Capacitord. Resistor
Solution
The thin layer of Silicon Oxide at the Gate terminal of a MOSFET acts as a c. Capacitor.
Here's why:
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The structure of a MOSFET includes a metal gate separated from the semiconductor by a thin layer of insulating silicon dioxide.
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When a voltage is applied to the gate, an electric field is created across the silicon dioxide layer.
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This electric field attracts carriers into the channel region and modulates the conductivity of the channel, controlling the current flow between the source and drain.
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This behavior of storing charge and controlling current flow is characteristic of a capacitor. Hence, the silicon dioxide layer acts as a capacitor.
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