tailieunhanh - CMOS VLSI Design - Lecture 4: Nonideal Transistor Theory

Nonideal Transistor Behavior – High Field Effects • Mobility Degradation • Velocity Saturation – Channel Length Modulation – Threshold Voltage Effects • Body Effect • Drain-Induced Barrier Lowering • Short Channel Effect – Leakage • Subthreshold Leakage • Gate Leakage • Junction Leakage Process and Environmental Variations .Ideal Transistor I-V Shockley long-channel transistor models | Lecture 4 Nonideal Transistor Theory Outline Nonideal Transistor Behavior - High Field Effects Mobility Degradation Velocity Saturation - Channel Length Modulation - Threshold Voltage Effects Body Effect Drain-Induced Barrier Lowering Short Channel Effect - Leakage Subthreshold Leakage Gate Leakage Junction Leakage Process and Environmental Variations 4 Nonideal Transistor Theory CMOS VLSI Design 4th Ed- 2 Ideal Transistor I-V Shockley long-channel transistor models Vds Vdsat 0 1 ds cutoff linear f Vs- V 2 Yds Vdsat saturation 4 Nonideal Transistor Theory CMOS VLSI Design 4th Ed