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Which consequence primarily limits integrated circuit transistor miniaturization because current leaks?

A)Quantum tunneling through the gate oxide
B)Ohmic heating within the channel
C)Electromigration reduces conductor paths
D)Increased capacitive gate coupling effects

💡 Explanation

Quantum tunneling allows electrons to pass through the gate oxide even when the transistor is off; this increases off-state current. Therefore, tunneling limits miniaturization, rather than ohmic heating from resistance at smaller scales.

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