PCB12 3.0 design software uses a free distribution model. Is said to extend PCB industrial-grade design environment with a high-throughput user interface; fully defined DRC/DfM rules; real-time order quoting, and 'click-to-order' function. Upgrades include integrated schematic and layout, bidirectional schematic/layout synchronization, schematic auto-wiring, auto-placer and auto-router, and real-time DRC 12 layer board support.
Sunstone Circuits,
www.sunstone.com