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Visual Design Diff (VDD)
The clearest way to understand what changed in your design - instantly. Built for Virtuoso. Trusted by analog, RF, and mixed-signal designers everywhere.
/keysight-visual-design-diff-(vdd)/Visual-Design-Diff-Software-Image.png)
/keysight-visual-design-diff-(vdd)/Visual-Design-Diff-Software-Image.png "Laptop screen showing Keysight Visual Design Diff (VDD) software open")
Design Changes Can Make or Break Silicon
The Old Way
Most teams rely on memory. Manual reviews. Tribal knowledge. Hope.
Critical changes slip through. Reviews take hours. Confidence erodes. Re-spins multiply.
The VDD Way
Total clarity. Visual proof. Immediate answers.
VDD brings precision to every design review. No guessing. No assumptions. No surprises.
What VDD Does
VDD shows you exactly what changed between two versions of a schematic or layout. Short. Simple. Essential. That's the VDD promise - and we deliver it every single time.
Native Cadence Virtuoso Integration
1- Select a CellView
Work exactly where you always work - inside Virtuoso
2- Run VDD
Single click. Zero friction. No workflow disruption.
3- See Differences Instantly
Visual clarity appears immediately in your environment.
VDD lives inside Virtuoso - not outside it. No exports. No screenshots. No external viewers. No clunky workflows that slow you down and introduce error.
Just clarity in a single click. That's the power of true native integration. Your tools. Your environment. Total visibility.
Schematic Diff - Designed for Analog Engineers
Built for the Future of Analog Design
VDD Finds Everything
- Device changes - transistor swaps, component updates
- Parameter changes - resistance, capacitance, bias points
- Wiring modifications - net rerouting, connection updates
- Structural differences - hierarchy changes, block modifications
- Symbol modifications - pin changes, label updates
- VDD creates a precise map of your design evolution. Every change tracked. Every modification documented. Every iteration preserved.
- This isn't just about today. It's about tomorrow.
Layout Diff - Built for Physical Designers
See shape-level differences with color-coded clarity. Instant visual alignment. Confidence before tapeout. VDD gives physical designers superhuman vision - spotting what changed at any layer, any time, any scale.
1
Poly Changes
Gate modifications and active area shifts.
2
Metal Layer Edits
Routing changes across all metal levels.
3
Via Updates
Interlayer connection modifications.
4
Implant Shifts
Doping region adjustments and well changes.
5
Routing Modifications
Path changes and width adjustments.
6
DRC-Related Geometry
Spacing fixes and design rule adjustments.
Works Seamlessly with SOS
The Perfect Partnership
SOS handles the versions. VDD shows what changed. Together, they eliminate design ambiguity - and re-spin risk.
SOS tracks every revision. Every iteration. Every branch. Then VDD makes those changes visible with surgical precision.
Version control meets visual clarity. That's how modern analog design should work.
No more manual comparisons. No more "diff by memory." Just instant, accurate visual proof of every modification.
/keysight-visual-design-diff-(vdd)/keysight-vdd-WW1502B-cadence-integration.png)
/keysight-visual-design-diff-(vdd)/keysight-vdd-WW1502B-cadence-integration.png "Screenshot of Keysight Visual Design Diff (VDD) software integrated with Cadence Virtuoso Studio")
Team Collaboration with Full Context
Fewer meetings. Faster decisions. Better designs.
VDD turns design reviews from painful marathons into efficient sprints. Communication becomes precise. Handoffs become seamless. Quality improves across the board.
Designers Review Together
Side-by-side comparisons with full visual context. No confusion. No misinterpretation. Everyone sees exactly what changed.
Managers See Impact Quickly
Assess risk instantly. Understand scope immediately. Make informed decisions without diving into implementation details.
Changes Validated Efficiently
Get instant visibility into design iterations. Target verification efforts precisely. Validate changes efficiently.
Featured Resources
Clarity Is Confidence - VDD Gives You Both
Ready to Transform Your Design Reviews?
See VDD in action. Experience native Virtuoso integration. Eliminate design ambiguity forever.
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