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New solver GEO-Exact achieves provably optimal HBT legalization

By PulseAugur Editorial · [1 sources] ·

Researchers have developed GEO-Exact, an open-source solver for Hybrid Bonding Terminal (HBT) legalization, which achieves provably optimal solutions in seconds. This method significantly outperforms existing heuristics, with reconstructions of common methods like ViaLegal and BTAssign showing an average deviation of only 0.011% and up to 6.9% above optimal, respectively. The study also indicates that significant headroom for improvement exists, particularly at higher utilization rates, where even a sliding-window approach can recover substantial displacement. AI

IMPACT This research introduces a novel, provably optimal solver for HBT legalization, potentially improving efficiency in 3D IC design.

RANK_REASON The cluster contains a research paper detailing a new algorithm and benchmark for a specific technical problem. [lever_c_demoted from research: ic=1 ai=0.4]

Read on arXiv cs.AI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

New solver GEO-Exact achieves provably optimal HBT legalization

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The cluster contains a research paper detailing a new algorithm and benchmark for a specific technical problem. [lever_c_demoted from research: ic=1 ai=0.4]
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COVERAGE [1]

  1. arXiv cs.AI TIER_1 English(EN) · Kadhir Parani, Manjunath Bezawada, Divya M, Kesana Jathin, Kolli Sarath, Sm Zobaed ·

    Provably Optimal HBT Legalization in Seconds: Certified Optima Reveal Where the Headroom Really Lies

    arXiv:2611.14928v1 Announce Type: new Abstract: Hybrid bonding terminal (HBT) legalization assigns every terminal of a face-to-face 3D IC to its own pitch-grid site with minimum total Manhattan displacement. Open3DBench reports that a reinforcement-learning (RL) legalizer reduces…

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