NDLI: How to consider shorts and guarantee yield rate improvement for redundant wire insertion

Content Provider	IEEE Xplore Digital Library
Author	Fong-Yuan Chang Ren-Song Tsay Wai-Kei Mak
Copyright Year	2009
Description	Author affiliation: Department of Computer Science National Tsing-Hua, University, Hsinchu, Taiwan (Fong-Yuan Chang; Ren-Song Tsay; Wai-Kei Mak)
Abstract	This paper accurately considers wire short defects and proposes an algorithm to guarantee IC chip yield rate improvement for redundant wire insertion. Without considering yield rate degradation caused by shorts, traditional methods may even lead to yield rate loss. However, shorts are more complicated to analyze than opens. Moreover, since any two points of a routed net can be connected by a redundant wire, the number of possible insertion patterns for a chip is un-tractable. To maximize yield rate improvement and to make the problem tractable, we identify a key insight, tolerance-ratio, as an effective guide for choosing insertion patterns and insertion order. Finally, to guarantee yield rate improvement, only positive gain redundant wires are committed. Experimental results show that, compared with unprocessed cases, all yield rate improvements in the proposed algorithm are positive, and the defect rates are reduced by up to 65% and by 24% on average. On the other hand, without considering shorts, the defect rate can increase as much as 7%.
Starting Page	33
Ending Page	38
File Size	571193
Page Count	6
File Format	PDF
ISBN	9781605588001
ISSN	10923152
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-11-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Wire Circuit faults Wiring Electromigration Routing Integrated circuit yield Semiconductor device manufacture Permission Degradation Shape
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Computer Science Applications Software

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