Taking a heuristic approach, VLSI Design Environments investigates design alternatives such as object oriented data modelling. PLAYOUT aims at the solution of system problems based on hierarchy, top-down planning, silicon complier presentations, advances in encoding logic synthesis, and a microarchitecre and logic optimization system. PLAYOUT supports the physical design from entering the structure of digital systems to the generation of the mask. The concept for autonomous tools with a clear interface to the network description and the simple interface to the graphics is presented. This enables the designer to have a great influence on the configuration of the placement of the schematic diagram.
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