Path-based cell flipping optimization for wirelength reduction and routability

Ying An Shih*, Tu Hsiung Tsai, Hung-Ming Chen

*Corresponding author for this work

研究成果: Conference contribution同行評審

1 引文 斯高帕斯(Scopus)

摘要

Wirelength reduction is always a concern in almost every methodology in physical design optimization. A recent study shows that solving cell flipping optimally can further reduce wirelength without affecting the original placement solution. In practical observation, there are still a lot of placed standard 2-pin logic cells which can be further mirrored to decrease the total routing length. In this work, we provide a path-based optimization methodology that can be applied before detailed routing, and this will help the router to improve the final routing length. This method can also be easily applied in the ECO stage to prevent the wire crossing effects, without impacting the local routability. A number of real industry tape-out cases are experimented to illustrate the effectiveness of the proposed methodology and to get shorter wirelength.

原文English
主出版物標題TENCON 2010 - 2010 IEEE Region 10 Conference
頁面1535-1539
頁數5
DOIs
出版狀態Published - 1 十二月 2010
事件2010 IEEE Region 10 Conference, TENCON 2010 - Fukuoka, Japan
持續時間: 21 十一月 201024 十一月 2010

出版系列

名字IEEE Region 10 Annual International Conference, Proceedings/TENCON

Conference

Conference2010 IEEE Region 10 Conference, TENCON 2010
國家Japan
城市Fukuoka
期間21/11/1024/11/10

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