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Which mechanism limits the performance of microelectronic devices due to electrons?

A)Quantum tunneling bypassing insulation barrier
B)Increased electron-phonon scattering raises resistance
C)Increased Cooper pair formation decreases current
D)Increased electron-electron repulsion exceeds voltage

💡 Explanation

Quantum tunneling causes electrons to pass through classically forbidden regions in semiconductors, because the wave function has a non-zero probability. This unwanted leakage increases power consumption; therefore performance is limited, rather than by resistance or repulsion at standard operating voltages.

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