Advanced-Physical-Design-Using-OpenLANE--Ojasvi-Shah

Course - Advanced Physical Design Using OpenLANE/SKY130 offered by VSDIAT

Author - Ojasvi Shah

Contents -:

• SKY130 Day 1: Inception of OpenSource EDA, OpenLANE and SKY130 PDK
  • How to Talk to Computers
    • Introduction to QFN - 48 package, chip, pads, core, die and IPs
    • Introduction to RISC V
    • From Software Applications to Hardware
  • SoC Design and OpenLANE
    • Introduction to Components of Opensource Digital ASIC Design
    • Simplified RTL to GDS flow
    • Introduction to OpenLANE and Strive Chipsets
    • Introduction to OpenLANE detailed ASIC Design Flow
  • Get Familiar to Opensource EDA tools
    • OpenLANE Directory Structure in Detail
    • Design Preparation Step
    • Review Files After Design Prep and Run Synthesis
    • Steps to Characterise Synthesis Results
• SKY130 Day 2: Good vs Bad Floorplan and Introduction to Library Cells
  • Chip Floor Planning Considerations
    • Utilisation Factor and Aspect Ratio
    • Concept of Pre-Placed Cells
    • De-Coupling Capacitors
    • Power Planning
    • Pin Placement and Logical Cell Placement Blockage
    • Steps to Run Floorplan Using OpenLANE
    • Review Floorplan Files and Steps to Review Floorplan
    • Review Floorplan Layout in Magic
  • Library Binding and Placement
    • Netlist Binding and Initial Place Design
    • Optimise Placement Using Estimated Wire-Length and Capacitance
    • Final Placement Optimization
    • Need for Libraries and Characterisation
    • Congestion Aware Placement Using RePLACE
  • Cell Design and Characterisation Flows
    • Inputs for Cell Design Flow
    • Circuit Design Step
    • Layout Design Step
    • Typical Characterisation Flow
  • General Timing Characterisation Parameters
    • Timing Threshhold Definitions
    • Propogation Delay and Transition Time
• SKY130 DAY 3: Design Library Cell Using Magic Layout and NGSPICE characterisation
  • Labs for CMOS Inverter NGSPICE Simulations
    • IO Placer Revision
    • SPICE Deck Creation For CMOS Inverter
    • SPICE Simulation Lab for CMOS Inverter
    • Switching Threshhold Vm
    • Static and Dynamic Simulation of CMOS Inverter
    • Lab Steps to GitClone VSDSTD Cell Design
  • Inception of Layout  CMOS Fabrication Process
    • Create Active Regions
    • Formation of N and P well
    • Formation of Gate Terminal
    • Lightly Doped Drain [LDD] Formation
    • Source  Drain Formation
    • Local Interconnect Formation
    • Higher Level Metal Formation
    • Lab Introduction to SKY130 Basic Layers Layout and LEF using Inverter
    • Lab Steps to Create STD Cell Layout and Extract SPICE Netlist
  • SKY130 Tech File Labs
    • Lab Steps To Create Final SPICE deck using SKY130 tech
    • Lab Steps to Characterise Inverter using SKY130 Model Files
    • Lab Introduction to SKY130 PDKs And Steps to Download Labs
    • Lab Introduction to Magic Tool Options and DRC Rules
    • Lab Introduction to Magic and Steps to Load SKY130 Tech Rules
    • Lab Excercise to Fix poly.9 error in SKY130 Tech-File
    • Lab Excercise to Implement Poly-Resistor Spacing to Diff and Tap
• SKY130 DAY 4 : Pre-Layout Timing Analysis and Importance of Good Clock Tree
  • Timing Modelling Using Delay Tables
    • Lab Steps To Convert Grid Information Into Track Information
    • Lab Steps to Convert Magic Layout to STD Cell LEF
    • Introduction of Timing libs and Steps To Include New Cell in Synthesis
    • Delay Tables
    • Lab Steps To Configure Synthesis Settings to Fix Slack and Include VSDINV
  • Timing Analysis With Ideal Clocks Using Open STA
    • Setup Timing Analysis And Introduction to Flip-Flop Setup Time
    • Introduction to Clock Jitter and Uncertainty
    • Lab Steps to Configure OpenSTA for Post-Synth Timings Analysis
    • Lab Steps to Optimize Synthesis to Reduce Setup Violations
    • Lab Steps to do Basic Timing ECO
  • Clock Tree Synthesis TritonCTS and Signal Integrity
    • Clock Tree Routing and Buffering Using H-Tree Algorithm
    • Crosswalk and Clock Net Shielding
    • Lab Steps to run CTS using TritonCTS
    • Lab Steps to Verify CTS Runs
  • Timing Analysis With Real Clocks Using Open STA
    • Setup Timing Analysis Using Real Clocks
    • Lab Steps to Analyse Timing With Real Clocks Using OpenSTA
    • Lab Steps to Excecute OpenSTA With Right Timing Libraries and CTS Assignment
    • Lab Steps to Observe Impact of Bigger CTS Buffers On Setup And Hold Timing
• SKY130 DAY 5: Final Steps For RTL2GDS Using TritonRoute and OpenSTA
  • Routing and Design Check [DRC]
    • Introduction to Maze Routing and Lee's Algorithm
    • Lee's Algorithm Conclusion
    • Design Rule Check
  • Power Distribution Network and Routing
    • Lab Steps To Build Power Distribution Network
    • Lab Steps From Power Straps To STD Cell Power
    • Basics of Global and Detail Routing and Configure TritonRoute
  • TritonRoute Features
    • TritonRoute Feature 1 - Honors Pre-processed Route Guides
    • TritonRoute Feature 2 & 3 - Inter-Guide Connectivity and Intra & Inter Layer Routing
    • TritonRoute Method To Handle Connectivity
    • Routing Topology Algorithm and Final Files List Post Route
• Bibliography and Acknowledgements