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Which consequence results when gate oxide thinning facilitates electron tunneling in nanoscale MOSFETs?

A)Increased subthreshold leakage current
B)Enhanced channel carrier mobility
C)Improved gate capacitance matching
D)Reduced short-channel effects margin

💡 Explanation

Increased leakage occurs because gate oxide thinning enhances the quantum tunneling probability. Electrons tunnel through the gate oxide layer, therefore current leakage increases rather than improving device parameters like mobility or capacitance in standard MOSFET transistor operation.

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