The tools improve steadily, but the complexity of the designs themselves, and the process design rules are also increasing. Cadence and Synopsys (the two bigges

The tools improve steadily, but the complexity of the designs themselves, and the process design rules are also increasing. Cadence and Synopsys (the two biggest EDA vendors) have both released major new versions of their automated place and route tools, with major improvements. However, 10nm presents new types of restrictions that need to be modeled and accounted for.