Routing Intent Aware Pin Access Point Selection for Standard Cell Designs

Pin access has been crucial to detailed routing for obtaining DRC violation-free standard cell designs. In this article we propose exploiting the routing intents of a net to optimize pin access point selection. We also propose a method to enable a commercial router to assess the effectiveness of our...

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Bibliographic Details
Main Authors: Wang, Po-Chun, Ton, Kai-Jie, Lin, Rung-Bin
Format: Conference Proceeding
Language:English
Subjects:
Circuits
detailed routing
Dynamic programming
pin access
Pins
Routing
standard cell
VLSI
Wires
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Summary:Pin access has been crucial to detailed routing for obtaining DRC violation-free standard cell designs. In this article we propose exploiting the routing intents of a net to optimize pin access point selection. We also propose a method to enable a commercial router to assess the effectiveness of our approach. Experimental results show that our approach can significantly reduce DRC violations and achieve on average 1.4% ~ 2% smaller wire length at the expense of 0.4% ~ 2% more vias when compared with the results obtained using the access points selected by a commercial router. Our approach also performs much better than a state-of-the-art approach based on dynamic programming.
ISSN:1948-3295
DOI:10.1109/ISQED60706.2024.10528690