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← ScienceWhich risk arises when raising temperature shifts silicon band alignment?
A)Increased transistor gate leakage current✓
B)Quantum tunneling probability decreases
C)Reduced electromagnetic interference shielding
D)Increased thermoelectric energy conversion efficiency
💡 Explanation
Raising the temperature alters band alignment, causing higher intrinsic carrier concentrations. This promotes thermionic emission of carriers through the reduced Schottky barrier height because the interface lowers, therefore gate leakage surges, rather than quantum tunneling, especially at elevated temperature.
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