DAC '78 Proceedings of the 15th Design Automation Conference
Internal connection problem in large optimized PLAs
DAC '83 Proceedings of the 20th Design Automation Conference
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This paper describes a new method of restricting search space for maze routing, to achieve a higher routing completion ratio and shorter machine time. The router is applied iteratively, expanding the width of L-shaped search space restriction from narrow one to wider ones successively. Using this method, machine time was reduced to one-fourth and the routing completion ratio was more than 10% higher in experimental comparison with singly restricted routers of no iteration. This paper also discusses an analysis to help to decide the iteration number and L-shaped path width.