|標題:||Analog Placement with Current Flow and Symmetry Constraints using PCP-SP|
Asha, K. A.
National Chiao Tung University
Department of Electronics Engineering and Institute of Electronics
|關鍵字:||Analog Layout Synthesis;PCP Constraints;Sequence Pair|
|摘要:||Modern analog placement techniques require consideration of current path and symmetry constraints. The symmetry pairs can be efficiently packed using the symmetry island configurations, but not all these configurations result in minimum gate interconnection, which can impact the overall circuit routing and performance. This paper proposes the first work that reformulates this problem considering all of them together in the form of Parallel Current Path (PCP) constraints. Then a placement algorithm satisfying these constraints is formulated to reduce a vast search space via efficient sequence pair manipulation. Experimental results show that this formulation and algorithm can satisfy all the constraints in a more tightly packed configuration, resulting in lesser routing length, reduced parasitics and thus better post-layout performance.|
|期刊:||2018 55TH ACM/ESDA/IEEE DESIGN AUTOMATION CONFERENCE (DAC)|
|Appears in Collections:||Conferences Paper|