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Which risk increases within sub-10nm FinFET transistors nearing manufacturing limits?

A)Increased electron quantum tunneling
B)Elevated lattice vibration coupling
C)Augmented impact ionization rate
D)Accelerated electromigration velocity

💡 Explanation

Increased scaling pushes the gate closer to the source/drain; *electron quantum tunneling* increases because electron wavefunctions penetrate the insulating barrier separating them, therefore off-state leakage increases, rather than other carrier effects that are less sensitive to gate oxide thickness at these scales.

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