The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2007
Filed:
Mar. 28, 2006
Kuang-yao Lee, Kaohsiung, TW;
Ting-chi Wang, Hsinchu, TW;
Kuang-Yao Lee, Kaohsiung, TW;
Ting-Chi Wang, Hsinchu, TW;
National Tsing Hua University, Hsinchu, TW;
Abstract
The objective of the invention is to provide a method for post-routing redundant via insertion. The method is to construct a conflict graph from a post-routing design first, to find a maximal independent set (MIS) of the conflict graph, and to replace a single via with a double via for each vertex in the maximal independent set. Furthermore, since redundant vias can be classified into on-track and off-track ones and since on-track ones have better electrical properties, the invention also presents two methods to increase the amount of on-track redundant vias while a redundant via insertion solution is given.