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← ScienceWhich outcome follows increased gate voltage in FETs due to quantum mechanics?
A)Increased source to drain tunneling✓
B)Channel length modulation decreases sharply
C)Subthreshold swing approaches zero quickly
D)Threshold voltage becomes gate voltage
💡 Explanation
Increased gate voltage enhances the electric field and thus increase electron QUANTUM TUNNELING through the gate oxide because electrons leak through the thin oxide layer rather than traditional channel conduction; therefore, leakage increases, rather than a clean on/off switch.
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