cell placement with symmetry

Improved method of cell placement with symmetry constraints for analog IC layout design

FREE-DOWNLOAD [PDF] S Kouda, C Kodama… – Proceedings of the
Recently, it is often required in high performance analog IC design that some cells are placed
symmetrically to horizon- tal or vertical axis. Balasa et al. proposed a method of obtaining the
closest placement satisfying the given symme- try constraints and the topology constraints