Title | ||
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MCell - Multi-Row Cell Layout Synthesis with Resource Constrained MAX-SAT Based Detailed Routing. |
Abstract | ||
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Multi-row cell structure has become popular for modern designs, especially for the multi-bit flip-flop (MBFF) cells, but has not been under full investigation in previous cell library synthesis researches. In this work, we propose an entire placement and routing flow for synthesizing multi-row cell layouts. The proposed new A*-based multi-row transistor placement algorithm can optimize the intra-row and inter-row connections. We also present the first MAX-SAT based detailed router to optimize the crossrow connections that also conform to primitive design rules, but not only to obtain a legal routing result in previous SAT-based detailed router. Experimental results show that the quality of synthesized cells is similar to that of a state-of-the-art cell library in [6], and better aspect ratios of multi-row cells also offer more flexible capability in assembling block designs under some aspect ratio constraints as compared to single-row cell library. |
Year | DOI | Venue |
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2020 | 10.1145/3400302.3415612 | ICCAD |
DocType | Citations | PageRank |
Conference | 0 | 0.34 |
References | Authors | |
0 | 4 |
Name | Order | Citations | PageRank |
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Yih-Lang Li | 1 | 365 | 28.84 |
Shih-Ting Lin | 2 | 11 | 4.32 |
Shinichi Nishizawa | 3 | 4 | 3.86 |
Hidetoshi Onodera | 4 | 455 | 105.29 |