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TCAD
2002

Preferred direction Steiner trees

8 years 3 months ago
Preferred direction Steiner trees
Interconnect optimization for VLSI circuits has received wide attention. To model routing surfaces, multiple circuit layers are freabstracted as a single rectilinear plane, ignoring via costs, layer dependent routing costs, and congestion impact for routing in a particular direction. In this paper, we consider preferred direction multi-layer routing, which more closely models practical applications. We adapt a well known rectilinear planar Steiner tree heuristic, resulting in a new method to construct low cost Steiner trees under a realistic model. Our implementation is fast and effective, obtaining reductions in tree cost of 11% to 37% on average for random problems. Our results include a proof that the performance bound of Minimum Spanning Tree cost to Steiner Minimal Tree cost under this
Mehmet Can Yildiz, Patrick H. Madden
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where TCAD
Authors Mehmet Can Yildiz, Patrick H. Madden
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