Agentic AI Automates Electronic Component Symbol and Footprint Generation

Yichen Shi, Yuzhi Liu, Zhuofu Tao, Li Huang, Yuhao Gao, Ting-Jung Lin, Lei Hel· July 23, 2026 View original

Summary

SFgen, an agentic recognition and generation flow leveraging multimodal large language models (MLLMs), automates the creation of symbols and footprints for electronic components. This system achieves high accuracy and is used to build SFnet, a growing database for automatic PCB design.

The manual creation of symbols and footprints for electronic components is a time-consuming and error-prone process, yet it is fundamental for printed circuit board (PCB) design. This research introduces SFgen, an innovative agentic recognition and generation workflow designed to automate this task. SFgen utilizes multimodal large language models (MLLMs) to process and generate these critical design elements. The system demonstrates impressive accuracy, achieving 86% for symbol generation and 80% for footprint generation. SFgen has been employed to construct SFnet, a database of electronic component symbols and footprints that currently contains 1000 components and is continuously expanding. This development lays a crucial foundation for the future of automated PCB design, promising to significantly streamline the design process and reduce human error.

Why it matters

Automating the creation of electronic component libraries can drastically reduce design time and errors in PCB development, accelerating product innovation and time-to-market for hardware companies.

How to implement this in your domain

  1. 1Evaluate SFgen or similar MLLM-based tools for automating component library creation in PCB design workflows.
  2. 2Integrate the SFnet database into existing CAD/EDA software for faster schematic and layout generation.
  3. 3Train internal design teams on leveraging AI-generated component libraries to improve efficiency.
  4. 4Contribute to or adapt open-source agentic recognition tools for specialized electronic components.

Who benefits

Electronics ManufacturingHardware EngineeringAutomotiveAerospaceConsumer Electronics

Key takeaways

  • Agentic AI can automate the creation of electronic component symbols and footprints.
  • SFgen achieves high accuracy in generating these critical PCB design elements.
  • The SFnet database, built using SFgen, supports automated PCB design.
  • This automation significantly reduces manual effort and potential errors in hardware development.

Original post by Yichen Shi, Yuzhi Liu, Zhuofu Tao, Li Huang, Yuhao Gao, Ting-Jung Lin, Lei Hel

"arXiv:2607.19767v1 Announce Type: new Abstract: A rich and recognizable component library is the cornerstone of printed circuit board (PCB) design and generation. Traditionally, engineers manually create symbols and footprints and design PCB schematics, which is time-consuming an…"

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Originally posted by Yichen Shi, Yuzhi Liu, Zhuofu Tao, Li Huang, Yuhao Gao, Ting-Jung Lin, Lei Hel on X · view source

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