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DTSTAMP:20260730T152640Z
LOCATION:Exhibit Hall
DTSTART;TZID=America/Los_Angeles:20260728T173700
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UID:dac_DAC 2026_sess306_LBR095@linklings.com
SUMMARY:Late Breaking Results: Physics-Aware Diffusion Framework for Trans
 istor-Level Placement Beyond Standard-Cell Boundary
DESCRIPTION:Keyu Peng, Junhong Li, Hao Wu, Chao Wang, and Jun Yang (Southe
 ast University) and Ziran Zhu (School of Integrated Circuits, Southeast Un
 iversity)\n\nAs conventional standard-cell methodologies increasingly limi
 t Design Technology Co-Optimization (DTCO) in advanced nodes, direct trans
 istor-level placement emerges as a crucial solution for minimizing wirelen
 gth and area. However, existing analytical placers optimize continuous coo
 rdinates, struggling to capture the strictly discrete and directional natu
 re of active breaks. \nTo overcome this, we propose a physics-aware genera
 tive framework featuring a novel Augmented Split-Graph to explicitly model
  complex active break constraints. By employing a continuous latent diffus
 ion process that deterministically decodes into discrete Sequence Pairs, o
 ur method bridges continuous generative modeling and discrete physical con
 straints, guaranteeing strictly overlap-free layouts. Experimental results
  demonstrate that our framework significantly outperforms a leading commer
 cial standard-cell-based baseline, achieving a 12.4\% reduction in average
  wirelength, a 13.4\% increase in active-sharing count, and a 7.4\% overal
 l reduction in layout area.\n\nTrack: Student\n\n
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