cadence confidential 1cadence design systems, inc. cadence front to back end adil sarwar march 2004
TRANSCRIPT
CADENCE CONFIDENTIAL1 CADENCE DESIGN SYSTEMS, INC.
Cadence Front to Back EndAdil Sarwar
March 2004
2 CADENCE CONFIDENTIAL
Presentation Overview
• Tool Setup
• Virtuoso Schematic Editor (Composer) for design entry
• Analog Design Environment (Analog Artist) for netlisting and simulation.
• Virtuoso LE for layout
• Diva for physical Verification
• Mixed-signal simulations / AMS Designer
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Tool Setup
• Source new cshrc file , IC 5.0 installed
• Icfb –W -> to check the version of tool
• cds.lib -> file in directory from where you want to run the tool
• .cdsinit and .env files for initialization and bindkeys
• icms , layoutPlus and icfb
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Cadence Flow Diagram
Virtuoso Custom Router
Virtuoso Layout Editor
Virtuoso XL
Physical Design Physical Verification
DivaLPEDRC LVS
Virtuoso Schematic Editor
GDSII
sche
mat
ics
back annotation
PCell Libraries andtechnology files
Rules files, technology files
Affirma Spectre Analog Simulator
Parasitic re-simulation
Stream
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CIW Window
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Library Manager
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Creating Directories and cds.lib file
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Creating Schematic Cell
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Inverter Schematic
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CDF Parameters
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Adding Pins and Wire names
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Virtuoso – Cell Creation and LSW
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Virtuoso layout
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Inverter Layout
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Giving Terminal Names
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Diva DRC
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DRC Results in CIW Window
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LVS Setup
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LVS Results
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Model and Libraries
• Models from NCSU Kit or From Mosis site
• analogLib library was used for voltage sources and gnd
• basic library was used for pins
• dfII database and environment was used
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Tutorials and Useful sites
• Tutorials available in Cadence Setup
- Go to install directory, the tutorials should be here
- <install_dir>/tools/dfII/samples/tutorials
- cp –r cell_design ~/
- http://www.owlnet.rice.edu/~elec522/w9/virtuoso_layout/
• http://www.ee.princeton.edu/~cadence/usr/
• NCSU site for tarred kit