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01/30/04*Other brands and names are the property of their respective owners

Futures Subcommittee Proposed “New” Futures Subcommittee

To create, discuss and draft IBIS/ICM updates

Tasks for IBIS 4.2 and Following “Clean up” of language and resolve conflicts

Example: [S. Pin Mapping] (BIRD87), [Driver Sched.] (BIRD88) [External Model] integration issues

Example: Acceptable digital states for input ports [External Circuit] usage issues

User-definable measurement parameters and delay fixtures Specification “hooks” between ICM and IBIS ANSI ballot approval as 656-B

Tasks for ICM Add frequency-dependent RLGC matrix support Resolve known parser assumptions and keyword conflicts


Cookbook & Training Proposed Cookbook Subcommittee

Joint action with Quality Subcommittee Creates, edits and distributes Cookbooks

Practical examples of new keywords Hints for data extraction and correlation See S. Peters’ 1997 IBIS 2.1 Cookbook

Suggest following model of HTML specification guides Describe all keywords Use “deprecated” for those no longer encouraged

e.g., [TTpower] Separate ICM and IBIS publications


Previous Cookbook1.0 Introduction

1.1 Quick Overview of an IBIS File1.2 Steps to creating an IBIS Model

2.0 Pre-Modeling Steps2.1 Basic Decisions

Model Version and ComplexitySpecification Model vs. Part ModelFast and Slow Corner Model LimitsInclusion of SSO Effects

2.2 Information Checklist2.3 Tips For Component Buffer Grouping

3.0 Extracting the Data3.1 Using Spice to IBIS (s2ibis)3.2 Extracting I/V and Switching Data via Simulations

3.2.1 Extracting the I/V DataSimulation Setup3-state BuffersOutput Only BuffersOpen Drain BuffersInput BuffersSweep RangesMaking Pullup and Power Clamp Sweeps Vcc RelativeDiode ModelsDiode Transient Time Data

3.2.2 Extracting the Ramp Rate or V/T Waveform DataExtracting Data for the [Ramp] KeywordExtracting Data for the Rising and Falling Waveform KeywordsMinimum Time StepMulti State Drivers

3.3 Obtaining I/V and Switching Information via Lab Measurement


Previous Cookbook (2)

4.0 Putting the Data Into an IBIS File4.1 IBIS File Header Information4.2 Component and Pin Information4.3 The [Model] Keyword

Parameter sectionTemperature and Voltage KeywordsI/V data sectionPulldownGround ClampPullupPower ClampExtrapolation Errors[Ramp] and Waveform Tables

4.4 External Package Models4.5 Verifying the IBIS file

5.0 Validating the Model6.0 Correlating the Data7.0 Resources


13

Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb MarQ2’04 Q3’04 Q4’04 Q1’05

26 39 52 13

Apr May Jun Jul Aug SepQ2’05 Q3’05

26 39

Development Timeline

Not Shown July, 2002: IBIS 4.0 approved Sept., 2003: ICM 1.0 approved

Spec Activities

1

Jan Feb MarQ1’04

IBIS 4.1Approval

IBIS 4.1Parser

DesignCon Summit

DATE

PCB East

IBIS 4.2Proposal

ICM 1.5Proposal

IBIS 4.1Cookbook

ICM 1.5Approval

ICM 1.0Cookbook

IBIS 4.2Approval

DAC

Summits

“E-Roadshow” “E-Roadshow” “E-Roadshow” “E-Roadshow” “E-Roadshow”

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