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← ScienceWhich outcome occurs when bias voltage widens dielectric barriers?
A)Increased quantum tunneling probability
B)Reduced transistor switching speed✓
C)Higher energy electron excitation
D)Decreased thermal energy dissipation
💡 Explanation
Increased width of barrier lowers the potential for quantum tunneling; rather than electrons readily passing, increased resistance causes slower transistor operation. This occurs because gate oxide leakage drops switching frequency, therefore limiting clock rates exceeding threshold parameters.
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