Title
MCell - Multi-Row Cell Layout Synthesis with Resource Constrained MAX-SAT Based Detailed Routing.
Abstract
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
2020
10.1145/3400302.3415612
ICCAD
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Yih-Lang Li136528.84
Shih-Ting Lin2114.32
Shinichi Nishizawa343.86
Hidetoshi Onodera4455105.29