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← ScienceWhich outcome fundamentally changes when exceeding a semiconductor's critical electric field?
A)Zener breakdown causes conduction enabling✓
B)Fermi level stabilizes band alignment
C)Phonon scattering reduces carrier mobility
D)Impact ionization saturates carrier velocity
💡 Explanation
Zener breakdown enables conduction because the electric field distorts the energy bands, tunneling charge carriers across the narrowed band gap in high-field regions, therefore increasing conductivity, rather than other processes saturating without gap breakdown.
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