Cadence Design Systems, Inc.
Delay dependence in physically aware cell cloning

Abstract:

Electronic design automation systems, methods, and media are presented for cell cloning during circuit design. In one embodiment, for a circuit design comprising a plurality of flip-flop elements having clock inputs provided by a routing tree, a delay is identified for each flip-flop element. The flip-flop elements are clustered by delay to generate at least two clusters of flip-flop elements. Elements within the clusters are then grouped by physical characteristics to generate delay groups of flip-flop elements. An updated routing tree is then generated for the circuit design using the first delay group and the second delay group.