Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Optimization
Reexamination Certificate
2011-04-19
2011-04-19
Siek, Vuthe (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Integrated circuit design processing
Optimization
Reexamination Certificate
active
07930674
ABSTRACT:
A first integrated circuit design with a first maximum operating frequency is modified to achieve a second integrated circuit design with a second maximum operating frequency. The integrated circuit design comprises an arrangement of cells. Each of these cells drives a signal that propagates through a net of other circuit elements to one or more nodes that are limited by respective signal timing constraints. An analytical cost function is assigned to each of the cells. Each analytical cost function comprises a value for its respective cell that is based on one or more speed-related factors indicative of the impact of the respective cell on the first maximum operating frequency of the first integrated circuit design. One or more of the cells are replaced with different cells based on the determined analytical cost functions.
REFERENCES:
patent: 5764525 (1998-06-01), Mahmood et al.
patent: 5903471 (1999-05-01), Pullela et al.
patent: 6701505 (2004-03-01), Srinivasan
patent: 2004/0041228 (2004-03-01), Houston
patent: 2004/0210857 (2004-10-01), Srinivasan
patent: 2006/0150132 (2006-07-01), Gupta
patent: 2007/0006109 (2007-01-01), Bartling et al.
Kahng et al., “Impact of Gate-Length Biasing on Threshold-Voltage Selection”, 7th International Symposium on Quality Electronic Design, Mar. 2006.
Parker James C.
Rao Vishwas
Agere Systems Inc.
Lin Aric
Ryan & Mason & Lewis, LLP
Siek Vuthe
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