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← ScienceWhich outcome occurs when high current densities exceeding allowed crystalline tolerances saturate a semiconductor?
A)Electromigration causes lattice atom displacement✓
B)Increased free carrier drift mobility
C)Reduced electron-phonon scattering events
D)Enhanced quantum tunneling probability
💡 Explanation
Electromigration leads to atomic displacement in the crystal lattice because momentum transfer from electrons dislodges substrate atoms; therefore structural failure occurs, rather than enhanced conduction, because the crystal structure degrades at high current densities.
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