Method of estimating wire length including correction and summat

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

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

716 12, G06F 1500

Patent

active

060995785

ABSTRACT:
In a method of estimating wire length allowing highly precise estimation of the estimated wire length of a net, an object net is selected. Thereafter, the object net is developed into pin pairs. For each of the pin pairs, a subcircuit satisfying a prescribed relation with the pin pair is extracted from the semiconductor integrated circuit. From the subcircuit, information necessary for estimating wire length of the pin pair (number of nets in the subcircuit and total area of macro cells in the subcircuit) is extracted. Based on the extracted information of the subcircuit, estimated wire length of the pin pair is estimated. Based on the estimated wire length of the pin pair, estimated wire length of the object net is estimated.

REFERENCES:
patent: 5311443 (1994-05-01), Crain et al.
patent: 5475607 (1995-12-01), Apte et al.
patent: 5550748 (1996-08-01), Xiong
patent: 5596505 (1997-01-01), Steinweg et al.
patent: 5629860 (1997-05-01), Jones et al.
patent: 5875114 (1999-02-01), Kagatani et al.
Hamada, T., Chung-Kuan Cheng, and Chau, P.M., "A Wire Length Estimation Technique Utilizing Neighborhood Density Equations", IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 15, No. 8, Aug. 1996, pp. 912-922, Aug. 1996.
Davis, J.A., De, V.K., and Meindl, J.D., "A Priori Wiring Estimations and Optimal Multilevel Wiring Networks For Portable ULSI Systems", Proceedings of the 46th Conference on Electronic Components and Technology, 1996, pp. 1002-1008, May 31, 1996.
Ramachandran, C. and Kurdahi, F.J., "Combined Topological and Functionality Based Delay Estimation Using a Layout-Driven Approach for High Level Applications", Proceedings of the Conference on European Design Automation, 1992, pp. 72-78, Sep. 7, 1992.
Pedram, M. and Preas, B., "Accurate Prediction of Physical Design Characteristics for Random Logic", IEEE International Conference on Computer Design: VLSI in Computers and Processors, 1989, pp. 100-108, Oct. 4, 1989.

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

Method of estimating wire length including correction and summat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of estimating wire length including correction and summat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of estimating wire length including correction and summat will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1145962

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