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Course contents

  • Logic Synthesis Glossary
  • Logic Synthesis Cheatsheet
  • Synthesis Foundations14
  • Logic Optimisation and Mapping20
  • Constraints and Timing15
  • Sequential, FSM and Memory19
  • Datapath Synthesis14
  • Area, Power and Test14
  • Verification, ECO and Handoff15
    • Equivalence Checking
    • Incremental Compile and ECO
    • Physical-Aware Synthesis and Handoff
  • Flows and Debugging15
  • Interview and Judgment11
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‹Logic Synthesis
  1. Topics
  2. Logic Synthesis
  3. Verification, ECO and Handoff

Part 7 · Verification, ECO and Handoff · Intermediate

Verification, ECO and Handoff

Equivalence checking, ECO, and handoff to physical design.

  • 3topics
  • 15lessons

This part closes the loop after optimisation and test hooks exist. Equivalence proves the netlist matches the RTL, and incremental compile and ECO handle late changes. Physical-aware estimates and a handoff package carry the result into layout.

Learning path through the verification topics.
Suggested order. Proof first, then changes, then handoff.

The three topics

Topic

Lessons

Description

Time

Equivalence Checking

5

Proving the netlist equals the RTL, and reading a failure.

40 min

Incremental Compile and ECO

5

Re-run versus patch, spare cells, and keeping equivalence through an ECO.

40 min

Physical-Aware Synthesis and Handoff

5

Wire estimates, congestion, and the handoff package to physical design.

40 min

Tip

Re-prove equivalence after every netlist change, including ECO patches. A patch without a proof is an unverified netlist.

Check yourself An ECO patch fixes timing but equivalence was skipped to save time. What is the risk?

The patch may change function on untested vectors. The Equivalence Checking topic shows how a miter catches exactly that.

Interview

Typical screening questions from this part: what a miter proves, when an ECO beats a re-run, and what belongs in the handoff package.

Related topics

  • Up: Logic Synthesis course hub

  • Previous: Area, Power and Test

  • Next: Flows and Debugging

  • See also: Synthesis Foundations

  • See also: Logic Optimisation and Mapping

  • See also: Constraints and Timing

  • See also: Sequential, FSM and Memory

  • See also: Datapath Synthesis

  • See also: Interview and Judgment

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See also

  • Logic Synthesis Glossary
  • Logic Synthesis Cheatsheet
  • Synthesis Foundations