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← ScienceWhich outcome results when silicon MOSFETs experience hot-carrier injection?
A)Threshold voltage shift occurs negatively✓
B)Substrate doping concentration becomes stable
C)Drain current linearity sharply increases
D)Gate oxide thickness dynamically increases
💡 Explanation
Hot-carrier injection causes electron trapping in gate oxide, because high-energy carriers overcome the energy barrier to enter the oxide layer via interface states; therefore, threshold voltage shifts negatively, rather than other parameter improvements under different device stress regimes.
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