Paper Info
Title
Current-flow and current-density-aware multi-objective optimization of analog IC placement.
Abstract
In this paper, the concept of hierarchical multi-objective optimization is applied to analog integrated circuit placement automation, where current-flow and current-density considerations are taken to improve the reliability and, reduce post-layout routing-induced parasitics of the circuit. The current-flow constraints are satisfied by forcing a monotonic routing directly in an absolute placement representation, while the impact of current-intensive interconnects is mitigated with the electromigration-aware optimization of the optimal wiring topology for all nets of the circuit. The problem׳s complexity is reduced using the hierarchy in the circuit׳s partitions, combining, bottom-up, Pareto fronts of placements that explore the tradeoffs between the design objectives. The approach is demonstrated in analog circuit structures for the United Microelectronics Corporation 130nm design process. Post-layout simulations show the importance of considering both current-flow and current-density considerations for an effective fully-automatic placement.
Year
DOI
Venue
2016
10.1016/j.vlsi.2016.05.008
Integration
Keywords
Field
DocType
Absolute coordinates,Analog Integrated circuit layout,Current-density,Current-flow constraints,Electronic design automation,Multi-objective optimization,Pareto front,Placement
Computer science,Circuit extraction,Electronic engineering,Placement,Multi-objective optimization,Electronic design automation,Physical design,Parasitic extraction,Integrated circuit,Floorplan
Journal
Volume
ISSN
Citations 
55
0167-9260
3
PageRank 
References 
Authors
0.49
24
4
Name
Order
Citations
PageRank
Ricardo Martins117920.81
Ricardo Povoa25310.57
Nuno C. Lourenço312218.24
Nuno Cavaco Horta431049.65