A DAG-Based Algorithm for Obstacle-Aware Topology-Matching On-Track Bus Routing

Hsu, Chen-Hao; Hung, Shao-Chun; Chen, Hao; Sun, Fan-Keng; Chang, Yao‐Wen

doi:10.1109/tcad.2020.3002546

Cited by 13 publications

(1 citation statement)

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“…Kim et al [14] introduced a compact topologyaware bus routing approach capable of synthesizing the routing topology of the bus while minimizing design rule violations in designs with high bus density and track utilization. Chen et al [15] proposed a maze routing method to address non-uniform track resources using a concurrent and hierarchical scheme for buses, whereas Hsu et al [16] applied a directed acyclic graph (DAG)-based algorithm to connect buses and alleviate routing congestion through rip-up and rerouting. Additionally, Zhang et al [17] introduced the concept of topological Boolean satisfiability to verify the legality of a segment during the detailed routing stage and determine the existence of feasible bit ordering.…”

Section: Previous Workmentioning

confidence: 99%

A Novel Global Routing Algorithm for Printed Circuit Boards Based on Triangular Grid

Chen,

Zhou,

Liu

et al. 2023

Electronics

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Global routing plays a crucial role in printed circuit board (PCB) design and affects the cost of the design significantly. Conventional methods based on rectangular grids have some limitations, whereas this paper introduces a new algorithm that employs a triangular grid model, which offers a more efficient solution to the problem. Firstly, we present a technique to sort all unconnected two-pin nets. Next, a triangular grid graph is constructed to represent the routing resources on the printed circuit board. Finally, we use the concept of maximum flow to identify the paths for global routing and apply detailed routing for the completion of wires. Results from experiments demonstrate that our algorithm is faster than two state-of-the-art routers and does not have any design rule violations for all industrial PCB instances.

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