Cadence Design Systems, Inc. - San Jose, CA, 95134. Abstract. In this paper an original constraint-driven placement tool tar- geted for full-custom mixed-signal ...
Quick Placement with Geometric Constraints Enrico Malavasi, Joseph L. Ganley and Edoardo Charbon Cadence Design Systems, Inc. - San Jose, CA, 95134 Abstract
In this paper an original constraint-driven placement tool targeted for full-custom mixed-signal design is described. One of its main objectives is to quickly obtain feasible layout con gurations, and explore eciently the e ect of di erent sets of constraints in an interactive environment. By using direct-approach algorithms, all feasible constraints are met by construction. Overconstraints are detected, and quick feedback is given to the user about infeasible requirements. Good results have been obtained on a signi cant set of industrial-strength test cases.
