Substrate: Designing Highly Configurable Analog and Mixed-Signal Circuit Generators
summary
Open-source framework Substrate generates schematic and GDS from parameterized Rust code and claims process-portable generators for Skywater 130nm and Intel 16nm, including a StrongARM comparator and a programmable resistor bank. It enforces an LCM-based multi-layer routing grid, uses AToL mapping between schematic tiles and layout, provides an auto-router plus manual override, supports 90 degree rotation and array/segment folding, resizes aspect ratio by over 10× via dynamic programming and bipartite matching, and exports SPICE and GDS.
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chapters (10)
- 0:00Introduction
- 1:23Analog/mixed-signal challenges
- 2:26Substrate’s layered architecture
- 3:50Rust for circuit generators
- 4:33Configurable generators with AToL
- 8:50Configurable aspect ratios
- 12:19Strong-arm comparator demo
- 13:23Termination bank with folding
- 13:44Conclusion
- 14:12Q&A
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