NDLI: Routing for chip-package-board co-design considering differential pairs

Content Provider	IEEE Xplore Digital Library
Author	Jia-Wei Fang Kuan-Hsien Ho Yao-Wen Chang
Copyright Year	2008
Description	Author affiliation: Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei (Jia-Wei Fang; Kuan-Hsien Ho; Yao-Wen Chang)
Abstract	Nanometer effects have complicated the designs of chips as well as packages and printed circuit boards (PCBpsilas). In order to improve the performance, convergence, and signal integrity of the design, chip-package-board co-design is strongly recommended by industry. In this paper, we present the first routing algorithm in the literature for chip-package-board co-design with differential-pair considerations. Our algorithm is based on linear programming and integer linear programming and guarantees to find an optimal solution for the addressed problem. It first creates global-routing paths among chips, packages, and a PCB. Without loss of the solution optimality, our routing formulation can reduce the numbers of integer variables (constraints) by 95% (99%) on average. Then, any-angle routing is applied to complete the routing. Experimental results based on five real industry designs show that our router can achieve 100% routability and the optimal global-routing wirelength and satisfy all differential-pair constraints, under reasonable CPU times, whereas recent related work results in much inferior solution quality.
Starting Page	512
Ending Page	517
File Size	443862
Page Count	6
File Format	PDF
ISBN	9781424428199
ISSN	10923152
DOI	10.1109/ICCAD.2008.4681623
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Routing Signal design Fingers Wire Electronics packaging Printed circuits Linear programming Integer linear programming Noise cancellation Electromagnetic interference
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Computer Science Applications Software

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