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A Graph Theoretic Approach for Manhattan Channel Routing Problem with General Case

Xianya Geng, Jinshan Xie, Zhenghua Xu


Channel routing in the 2-layer Manhattan model is one of the most investigated problems in VLSI design. Geng gave a algorithm for 2-layer Manhattan channel routing problem with bipartite and vertical constraint graph doesn’t have directed cycles. In this paper, we consider 2-layer Manhattan channel routing problem with bipartite and vertical constraint graph has directed cycles, an efficient graph theoretic algorithm for this case is present. Then we consider general 2-layer Manhattan channel routing problem, we also give an efficient algorithm.


Channel routing, Manhattan model, VLSI.

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