The Devices Jan M Rabaey Digital Integrated Circuits

The Devices Jan M. Rabaey Digital Integrated Circuits Devices © Prentice Hall 1995

Goal of this chapter Digital Integrated Circuits Devices © Prentice Hall 1995

The MOS Transistor Digital Integrated Circuits Devices © Prentice Hall 1995

Cross-Section of CMOS Technology Digital Integrated Circuits Devices © Prentice Hall 1995

MOS transistors Types and Symbols D D G G S S NMOS Enhancement NMOS Depletion D D G G S S PMOS Enhancement Digital Integrated Circuits B Devices NMOS with Bulk Contact © Prentice Hall 1995

Threshold Voltage: Concept Digital Integrated Circuits Devices © Prentice Hall 1995

The Threshold Voltage Digital Integrated Circuits Devices © Prentice Hall 1995

Current-Voltage Relations Digital Integrated Circuits Devices © Prentice Hall 1995

Current-Voltage Relations Digital Integrated Circuits Devices © Prentice Hall 1995

Transistor in Saturation Digital Integrated Circuits Devices © Prentice Hall 1995

I-V Relation Digital Integrated Circuits Devices © Prentice Hall 1995

A model for manual analysis Digital Integrated Circuits Devices © Prentice Hall 1995

Dynamic Behavior of MOS Transistor Digital Integrated Circuits Devices © Prentice Hall 1995

The Gate Capacitance Digital Integrated Circuits Devices © Prentice Hall 1995

Average Gate Capacitance Different distributions of gate capacitance for varying operating conditions Most important regions in digital design: saturation and cut-off Digital Integrated Circuits Devices © Prentice Hall 1995

Diffusion Capacitance Digital Integrated Circuits Devices © Prentice Hall 1995

Junction Capacitance Digital Integrated Circuits Devices © Prentice Hall 1995

Linearizing the Junction Capacitance Replace non-linear capacitance by large-signal equivalent linear capacitance which displaces equal charge over voltage swing of interest Digital Integrated Circuits Devices © Prentice Hall 1995

The Sub-Micron MOS Transistor Digital Integrated Circuits Devices © Prentice Hall 1995

Threshold Variations Digital Integrated Circuits Devices © Prentice Hall 1995

Parasitic Resistances Digital Integrated Circuits Devices © Prentice Hall 1995

Velocity Saturation (1) Digital Integrated Circuits Devices © Prentice Hall 1995

Velocity Saturation (2) Digital Integrated Circuits Devices © Prentice Hall 1995

Sub-Threshold Conduction Digital Integrated Circuits Devices © Prentice Hall 1995

Latchup Digital Integrated Circuits Devices © Prentice Hall 1995

SPICE MODELS Digital Integrated Circuits Devices © Prentice Hall 1995

MAIN MOS SPICE PARAMETERS Digital Integrated Circuits Devices © Prentice Hall 1995

SPICE Parameters for Parasitics Digital Integrated Circuits Devices © Prentice Hall 1995

SPICE Transistors Parameters Digital Integrated Circuits Devices © Prentice Hall 1995

Fitting level-1 model for manual analysis Digital Integrated Circuits Devices © Prentice Hall 1995

Technology Evolution Digital Integrated Circuits Devices © Prentice Hall 1995