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← ScienceWhich outcome results from exceeding silicon's avalanche breakdown voltage?
A)Uncontrolled current increase through depletion region✓
B)Reduced semiconductor electron mobility
C)Increased width of the band gap
D)Dopant atoms diffuse into crystal lattice
💡 Explanation
Exceeding avalanche breakdown voltage leads to uncontrolled current increase because impact ionization creates electron-hole pairs, causing exponential carrier multiplication therefore the current surges rather than dopant diffusion or decreased mobility because the applied field exceeds the Shockley limit.
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