PDN Toy Tools
Master Power Delivery Networks Through Interactive Simulation
An interactive suite of tools to help VLSI engineers analyze and debug complex power delivery network issues like Electromigration (EM) and IR Drop through real-time simulation.
What is EMIR?
EMIR (Electromigration and IR Drop) is a critical challenge in modern VLSI design. Electromigration is the gradual displacement of metal atoms in a semiconductor, which can cause interconnects to fail. IR Drop is the voltage drop in the power delivery network, which can lead to timing violations and reduced performance.
Interactive Analysis Tools
PDN SPR Visualizer 3D
Analyze shortest path resistance in an interactive 3D power grid. Watch Dijkstra's algorithm find optimal current paths through multi-layer metal stacks in real-time.
Launch Tool →IR Drop Visualizer 3D
Explore voltage distribution in an interactive 3D landscape. Watch columns shrink and turn red as current flows, revealing dangerous IR drop zones in real-time.
Launch Tool →Why Interactive Simulation Works
Intuitive Understanding
See voltage distributions and current paths, not just numbers in a report.
Real Solvers
Gauss-Seidel nodal analysis and Dijkstra/Yen's algorithms — not approximations.
Safe Exploration
Experiment with parameters and see immediate results — no risk, instant feedback.
Step-Through Mode
Watch algorithms solve step by step — understand the why, not just the what.