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← ScienceWhich outcome results when excessive current degrades gate-oxide bonds?
A)Threshold voltage value instability occurs✓
B)Thermal runaway is exponentially inhibited
C)Substrate leakage diminishes predictably
D)Maximum switching frequency sees inflation
💡 Explanation
Threshold voltage instability occurs because the excess current causes dielectric breakdown due to trap generation, creating interface traps at the silicon-silicon dioxide interface. Therefore, the threshold voltage changes because charge carriers become trapped, rather than other performance parameters like leakage or frequency immediately improving.
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