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← ScienceWhich effect on transistor gate oxides occurs because of quantum effects?
A)Increased gate oxide breakdown voltage
B)Direct tunneling current increases✓
C)Decreased channel electron mobility
D)Higher threshold voltage instability
💡 Explanation
As gate oxide thickness decreases, direct tunneling allows electrons to pass through even with insufficient energy because of quantum tunneling, therefore increasing the current, rather than preventing it like breakdown voltage.
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