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SPICE Simulation for Deep Submicron IC's

Prof. Andrei Vladimirescu
Department of Electrical Engineering and Computer Sciences at the University of California at Berkeley

16 hours, 4 credits (final test)

October 15 - October 19, 2007
Dipartimento di Ingegneria dell'Informazione: Elettronica, Informatica, Telecomunicazioni, via Caruso 16, meeting room, ground floor

Contacts: Ing. Domenico Zito

Description

The purpose of this series of lessons is to teach integrated-circuit (IC) design students semiconductor device modeling with emphasis on Deep-Submicron (DSM) technology and the operation of a SPICE circuit simulator. The lessons address the solutions algorithms and simulation controls available to the user, the different levels of modeling, structural and behavioral, and new types of analysis such as mixed-signal and steady-state analysis, particularly suited for RF design. Participants will have an opportunity to experiment with the various concepts presented in the lessons on workstations.

Objectives

At the end of this course students should have:

• improved their knowledge in electrical simulation and modeling
• understood how to solve convergence issues
• acquired some basic knowledge on analog hardware description languages

Syllabus

The SPICE Simulator/IC Technology Scaling/SPICE Algorithms (4 hours)

• History of SPICE, past, present and future developments
• Technology scaling: impact on integrated circuits and simulation technology
• SPICE algorithms and simulation options
• SPICE LAB: simulation accuracy and options

SPICE Simulation/Modeling (4 hours)

• Simulation models: definitions, built-in SPICE element models
• Bipolar models: diode, BJT
• Advanced BJT models for DSM: VBIC95, Mextram
• SPICE LAB: diode parameter extraction

MOSFET/Complex Models (4 hours)

• MOSFET device: physical phenomena, process parameters and geometry specification
• DSM MOS models currently used: BSIM3(4), EKV
• DSM MOS models for technologies 65nm and below: PSP
• Introduction to analog hardware description languages (Verilog-AMS)
• SPICE LAB: DSM MOS characteristics, behavioral example

Advanced Topics (4 hours)

• Convergence
• RF simulation: algorithms, options and analysis types
• Fast Spice
• SPICE LAB: convergence fixes, Fast Spice demo