Chip Implementation, Step by Step

The recommended real baseline is Yosys → OpenROAD with RePlAce-derived, timing- and routability-driven placement. The six production-path stages below generate inspectable implementation evidence.

Recommended real flow

Step	Stage	Tool / algorithm	Purpose
1	Synthesis	Yosys + ABC	Map RTL into SKY130HD standard cells
2	Floorplan	OpenROAD	Create core, I/O, tap cells, and PDN
3	Placement	RePlAce-derived gpl + detailed placement	Optimize density, timing, congestion, and wirelength
4	Clock tree	TritonCTS	Build the clock network and repair timing
5	Routing	Global route + TritonRoute	Produce design-rule-aware detailed wiring
6	Finish	Extraction, reports, and stream-out	Write final ODB, DEF, netlist, SDC, and GDS evidence

Run the digest-pinned implementation from Workspace → Governed EDA Runs, or locally with npm run eda:best-flow. A lower placement score alone is not closure; compare routed DRC, timing, area, power, wirelength, vias, and runtime.

Educational Simulator Parameters

Number of Cells

Number of Nets

Chip Width

Chip Height

Pipeline Report

This interactive lab executes ten educational algorithms on a synthetic netlist. Its output is useful for learning, but it is not Yosys/OpenROAD implementation or tapeout evidence.