Interactive repeater insertion simulator (IRIS) system and...

Data processing: structural design – modeling – simulation – and em – Simulating electronic device or electrical system – Circuit simulation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C703S002000, C716S030000

Reexamination Certificate

active

06928401

ABSTRACT:
An interactive repeater insertion simulator (IRIS) system and method quickly and easily optimize the design of an integrated circuit (IC) interconnect for an electrical signal through the insertion of repeaters. The IRIS system utilizes the combination of a router, a repeater inserter, and a delay simulator to efficiently simulate repeater insertion. The router defines the route between more than one circuit and derives a first netlist. The first netlist is then sent to the repeater inserter to define the insertion of repeaters. A second netlist is outputted from the repeater inserter having thereupon one or more repeaters, inserted, and the physical locations of these repeaters along the interconnect for optimal performance, and minimum propagation delay. The delay simulator is then run on the second netlist to calculate the new interconnect delays. The interconnect delays may then be plotted or otherwise output for examination.

REFERENCES:
patent: 5402356 (1995-03-01), Schaefer et al.
patent: 5666290 (1997-09-01), Li et al.
patent: 5799170 (1998-08-01), Drumm et al.
patent: 5838580 (1998-11-01), Srivatsa
patent: 5838581 (1998-11-01), Kuroda
patent: 5859776 (1999-01-01), Sato et al.
patent: 6044209 (2000-03-01), Alpert et al.
patent: 6117182 (2000-09-01), Alpert et al.
patent: 6145116 (2000-11-01), Tawada
patent: 6205570 (2001-03-01), Yamashita
patent: 6286128 (2001-09-01), Pileggi et al.
patent: 6347393 (2002-02-01), Alpert et al.
patent: 6367051 (2002-04-01), Pileggi et al.
patent: 6412101 (2002-06-01), Chang et al.
patent: 6463574 (2002-10-01), Culetu et al.
patent: 6493854 (2002-12-01), Chowdhury et al.
patent: 6510542 (2003-01-01), Kojima et al.
Adler, et al. “Optimizing RC tree delay in high speed ASICs through repeater insertion”, 1998.
Adler, et al., “Repeater Design to Reduce Delay and Power in Resistive Interconnect”, 1998.
Cong et al., “Simultaneous Driver and Wire Sizing for Performance and Power Optimization”, 1994 IEEE/ACM International Conference on Computer-Aided Design. Published Nov. 1994.
Culetu et al., “A Practical Repeater Insertion Method in High Speed VSLI Circuits”, Proceedings of the 35th Design Automation Conference. pp. 392-395. Published Jun. 1, 1998.
Ismail et al. “Optimum Repeater Insertion Based on a CMOS Delay Model fo On-chip RLC Interconnect”, 1998.
Lillis et al., “Optimal Wire Sizing and Buffer Insertion for Low Power and a Generalized Delay Model”, 1995.
Lillis et al. “Timing Optimization for Multi-source Nets: Characterization and Optimal Repeater Insertion”, 1997.
Menezes et al. “A sequential quadratic programming approach to concurrent gate and wire sizing”, 1995.
van Ginneken et al. “Buffer Placement in Distributed RC-tree networks for minimal Elmore delay”, 1990.
Walker et al. “Circuit Optimization Using the Simplex Algorithm”, 1989.
Adler et al. “Repeater Design to Reduce Delay and Power in Resistive Interconnect”, IEEE Transactions on Circuits and Systems. vol. 45, No. 5, pp. 607-616. May 1998.
Chen, Chung-Ping et al. “Optimal Wire-Sizing Formula Under the Elmore Delay Model.” Proc. 33rdDAC. pp. 487-490. 1996.
He, Jiang-An et al. “Simultaneous Wire Sizing and Wire Spacing in Post-Layout Performance Optimization.” Proc. ASP-DAC '98. pp. 373-378. Feb. 13, 1998.
Menezes, N. et al. “Spec-based Repeater Insertion and Wire Sizing for On-Chip Interconnect.” Proc. 12thInt'l Conf. on VLSI Design, 1999.
Wang, Dong-Sheng et al. “A New General Connectivity Model and Its Applications to Timing-Driven Steiner Tree Routing.” 1998 IEEE Int'l Conf. on Electronics, Circuits and Systems. vol. 2, pp. 71-74. Sep. 10, 1998.
Lillis et al. “Optimal Wire Sizing and Buffer Insertion for Low Power and a Generalized Delay Model.” IEEE/ACM ICCAD-95. Nov. 1995. pp. 138-143.
Acar, E. et al. “S2P: A Stable 2-Pole RC Delay and Coupling Noise Metric” Proc. 9thGreat Lakes Symposium VLSI, 1999. Mar. 4-6, 1999. pp. 60-63.
Rubenstein, J. “Signal Delay in RC Tree Networks.” IEEE Transactions on CAD of Integrated Circuits and Systems. Jul. 1983. vol. 2, Issue 3. pp. 202-211.
ISmail, Y.I., et al. “Inductance Effects in RLC Trees.” 9th Great Lakes Symposium VLSI, 1999. Mar. 4-6, 1999. pp. 56-59.
Article entitled “Optimal wire sizing and buffer insertion for low power and a generalized delay model” by Lillis et al.; Proceedings of the 1995 IEEE/ACM international conference on Computer-aided design, 9 pages.
Article entitled “Timing Optimization For Multi-source Nets: Characterization And Optimal Repeater Insertion” by Lillis et al.; Design Automation conference, 1997. Proceedings of the 34th . . . ; p. 1 and pp. 214-219.
Article entitled “A practical repeater insertion method in high speed VLSI circuits” by Culetu et al.; Annual ACM IEEE Design and Automation Conference (1998), pp. 1-3; p. 1 and pp. 392-395.
Article entitled “Buffer placement in distrubted RC-tree networks for minimal Elmore delay” by Lukas P.P.P. van Ginneken; 1990., IEEE International Symposium on Circuits and Systems, p. 1, and pp. 865-868.
Article entitled “Simultaneous Driver and Wire Sizing for Performance and Power Optimization” by Cong, et al.; 1994 IEEE/ACM international conference on Computer-aided design, pp. 1-3 and pp. 206-212.
Article entitled “A Sequential Quadratic Programming Approach to Concurrent Gate and Wire Sizing” by Noel Menezes et al.; Proceedings of the 1995 IEEE/ACM international conference on Computer-aided design, pp. 1-13.

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

Interactive repeater insertion simulator (IRIS) system and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interactive repeater insertion simulator (IRIS) system and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interactive repeater insertion simulator (IRIS) system and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3447708

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