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Qinfei Tang

dblp:357/2597 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2023
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Systems, architecture and hardware · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Computer networks
1 paper
Routing and switching · 100%
Computer architecture, parallel and distributed computing, and storage systems
1 paper
Electronic design automation · 100%

Topics — the 1 heaviest of 2, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Electronic design automation › physical design › routing
printed circuit board routing
0.712023
Disjoint-Path and Golden-Pin Based Irregular PCB Routing with Complex Constraints · DAC 2023

Methods — techniques the papers use, named apart from their topics

minimum weight vertex covering · 1.3dynamic hanan grid · 1.3disjoint path · 1.3
YearPublicationVenuePosition
2023 Disjoint-Path and Golden-Pin Based Irregular PCB Routing with Complex Constraints
abstract
PCB routing becomes time-consuming as the complexity of PCB design increases. Unlike traditional schemes that treat the two essential PCB routing processes separately, namely, escape and bus routing, we consider the continuity between them and present a golden-pin-based routing scheme to find the desired solution with angle and topology constraints. Further, conventional rip-up and reroute methods are often ineffective and inefficient for congestion alleviation and routability optimization. We construct a component graph by modeling components as vertices and applying the minimum weight vertex covering method to improve the routability. A self-adaptable ordering method is presented for escape routing to arrange the pin order on the component boundary, guaranteeing successful bus routing. In addition, escape routing is performed based on a disjoint path method. We construct a dynamic Hanan grid in bus routing and utilize a novel congestion adjustment technique to improve solution quality. Compared with FreeRouting and Allegro, the experiment results show that our algorithm achieves high routability and a significant 90% runtime reduction.
Qinghai Liu, Qinfei Tang, Jiarui Chen, Chuandong Chen, Ziran Zhu, Jianli Chen, Yao-Wen Chang
DAC2