System and computer program for verifying performance of an...

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

C365S201000

Reexamination Certificate

active

07552413

ABSTRACT:
A system and computer program for verifying performance of an array by simulating operation of edge cells in a full array model reduces the computation time required for complete design verification. The edge cells of the array (or each subarray if the array is partitioned) are subjected to a timing simulation while the center cells of the array are logically disabled, but remain in the circuit model, providing proper loading. Additional cells are specified for simulation if calculations indicate a worst-case condition due to a non-edge cell. Wordline arrivals are observed to determine worst-case rows for selection. For write operations, the difference between the wordline edges and the data edges is used to locate any non-edge “outlier” cells. For read operations, the wordline delays are summed with the bitline delays determined from edge column data to locate any outliers.

REFERENCES:
patent: 5392227 (1995-02-01), Hiserote
patent: 6185723 (2001-02-01), Burks et al.
patent: 6650592 (2003-11-01), Amatangelo et al.
patent: 6813201 (2004-11-01), Zarrineh et al.
patent: 7301835 (2007-11-01), Joshi et al.
patent: 7304895 (2007-12-01), Joshi et al.
patent: 7349271 (2008-03-01), Kuang et al.
patent: 7376001 (2008-05-01), Joshi et al.
patent: 2003/0037306 (2003-02-01), Gutwin et al.
patent: 2003/0115035 (2003-06-01), Kulshreshtha et al.
patent: 2003/0163297 (2003-08-01), Khaira et al.
patent: 2004/0162716 (2004-08-01), Dorfman et al.
patent: 2005/0273308 (2005-12-01), Houston
patent: 2006/0203581 (2006-09-01), Joshi et al.
patent: 2007/0044049 (2007-02-01), Adams et al.

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 computer program for verifying performance of an... 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 computer program for verifying performance of an..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and computer program for verifying performance of an... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4059295

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