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← ScienceWhich impedance mismatch becomes significant in nanoscale CMOS transistors?
A)Quantum confinement disrupts carrier transport✓
B)Increased bulk resistance limits current
C)Electromigration reduces gate oxide integrity
D)Increased parasitic capacitance delays switching
💡 Explanation
Quantum confinement raises reflecting electrons and thus impedance mismatch because it squeezes the electron's wavefunction into a smaller space, leading to increased energy states, therefore impeding the carrier mobility rather than classic resistance as in bulk scenarios preventing electron transport.
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