Three-layer channel routing is an important problem in VLSI layout. In this paper, we present a topological sorting algorithm to determine the topological order on nets depending on the operations of the vertical con-.straint graph (VCG) and the horizontal constraint graph (HCG). According to the order, the base router can finish the connections of all nets. In the algorithm, the HVH mode is assumed, and some examples including Deutsch’s difficult example are used as test problems.
|Number of pages||11|
|Journal||Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an|
|Publication status||Published - 1990 Sep|
- Channel routing
- Topological sorting
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