System and method for generating at-speed structural tests...

Computer-aided design and analysis of circuits and semiconductor – Nanotechnology related integrated circuit design

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C716S030000, C716S030000

Reexamination Certificate

active

07856607

ABSTRACT:
A system for enhancing the practicability of at-speed structural testing (ASST). In one embodiment, the system includes first means for performing statistical timing analysis on a design of logic circuitry. A second means performs a criticality analysis on the logic circuitry as a function of the statistical timing analysis so as to determine a criticality probability for each node of the logic circuitry. A third means selects nodes of the logic circuitry as a function of the criticality analysis. A fourth means selects timing paths as a function of the criticality probabilities of the selected nodes. A fifth means generates an ASST pattern for each of the selected timing paths. A sixth mean is provided to perform ASST on a fabricated instantiation of the design at functional speed using the generated ASST pattern.

REFERENCES:
patent: 4905183 (1990-02-01), Kawaguchi et al.
patent: 5396170 (1995-03-01), D'Souza et al.
patent: 6032281 (2000-02-01), Fujisaki
patent: 6345373 (2002-02-01), Chakradhar et al.
patent: 6574760 (2003-06-01), Mydill
patent: 6918074 (2005-07-01), Kim et al.
patent: 6961885 (2005-11-01), Man et al.
patent: 6975954 (2005-12-01), Mak et al.
patent: 7086023 (2006-08-01), Visweswariah
patent: 7111260 (2006-09-01), Visweswariah
patent: 7539893 (2009-05-01), Ferguson
patent: 2004/0002844 (2004-01-01), Jess et al.
patent: 2006/0112158 (2006-05-01), Tetelbaum
patent: 2009/0094565 (2009-04-01), Lackey et al.
patent: 04328476 (1992-11-01), None
Nabil M. Abdulrazzaq, Sandeep K. Gupta, Path-Delay Fault Simulation for Circuits with Large Numbers of Paths for Very Large Test Sets, Proceedings of the 21st IEEE VLSI Test Symposium (VTS'03).
Mentor Graphics Announces Improved Performance and Advanced At-Speed Capabilities in FastScan for Testing Nanometer Designs; http://www.mentor.com/products/dft
ews/improved-performance—fastscan.cfm; Sep. 22, 2003; pp. 1-2.
Scott Cook, Rethinking test at 130 nanometers and below; http://www.eetimes.com
ews/design/showArticle.jhtml?articlelD=17408660; Sep. 12, 2003; pp. 1-8; EE Times: Design News.
Sanjay Sengupta, Test Strategies for Nanometer Technologies; ITC International Test Conference; Panel p4.4; p. 1421.
Angela Krstic, Li-C. Wang, Kwang-Ting Cheng; Jing-Jia Liou; Diagnosis of Delay Defects Using Statistical Timing Models; Proceedings of the 21st IEEE VLSI Test Symposium ( VTS'03).
Qiang Peng, Fishwani D. Agrawal, Jacob Savir; On the Guaranteed Failing and Working Frequencies in Path Delay Fault Analysis; Proc. 16th IEEE Instrumentation and measurement Technology Conf., Venice, May 24-26, 1999; pp. 1794-1799.
Kai Yang, Li-C. Wang, Kwang-Ting Cheng, Sandip Kundu; On Statistical Correlation Based Path Selection for Timing Validation; VLSI Design, Automation and Test, 2005 (VLSI-TSA-DAT) 2005 IEEE VLSI-TSA International Symposium; Apr. 27-29, 2005; pp. 8-11.
Li-C. Wang, Jing-Jia Liou, Kwang-Ting Cheng; Critical Path Selection for Delay Fault Testing Based Upon a Statistical Timing Model; IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 23, No. 11, Nov. 2004; pp. 1550-1565.
Jing-Jia Liou, Li-C. Wang, Kwang-Ting Cheng; On Theoretical and Practical Considerations of Path Selection for Delay Fault Testing; Computer Aided Design, ICCAD 2002; IEEE/ACM International Conference; Nov. 10-14, 2002; pp. 94-100.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System and method for generating at-speed structural tests... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for generating at-speed structural tests..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for generating at-speed structural tests... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4223190

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.