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← ScienceWhich phenomenon diminishes output current when a MOSFET's channel length decreases?
A)Drain-Induced Barrier Lowering✓
B)Velocity Saturation Onset
C)Substrate Bias Modulation Increase
D)Channel Length Thermal Expansion
💡 Explanation
Drain-induced barrier lowering (DIBL) reduces the threshold voltage required for channel formation because drain voltage affects the barrier. This increases leakage current, therefore diminishing current control, rather than enhancing desired output current which would involve different mechanisms.
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