Kavli Affiliate: Jing Wang
| First 5 Authors: Qi Xu, Lijie Wang, Jing Wang, Lin Cheng, Song Chen
| Summary:
In recent years, analog circuits have received extensive attention and are
widely used in many emerging applications. The high demand for analog circuits
necessitates shorter circuit design cycles. To achieve the desired performance
and specifications, various geometrical symmetry constraints must be carefully
considered during the analog layout process. However, the manual labeling of
these constraints by experienced analog engineers is a laborious and
time-consuming process. To handle the costly runtime issue, we propose a
graph-based learning framework to automatically extract symmetric constraints
in analog circuit layout. The proposed framework leverages the connection
characteristics of circuits and the devices’ information to learn the general
rules of symmetric constraints, which effectively facilitates the extraction of
device-level constraints on circuit netlists. The experimental results
demonstrate that compared to state-of-the-art symmetric constraint detection
approaches, our framework achieves higher accuracy and F1-score.
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