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Which outcome results when exceeding gate insulator's breakdown voltage?

A)Uncontrolled channel current occurs
B)Source-drain tunneling diminishes
C)Gate capacitance value decreases
D)Subthreshold swing steepness increases

💡 Explanation

Uncontrolled channel current results from exceeding an insulators breakdown voltage because dielectric breakdown produces short circuits. It affects electron transport across the bands, leading to unexpected current flow; therefore, A is correct rather than other electron transport disruptions inside the MOSFET.

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