Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Logic design processing
Reexamination Certificate
2011-06-07
2011-06-07
Lin, Sun J (Department: 2825)
Computer-aided design and analysis of circuits and semiconductor
Integrated circuit design processing
Logic design processing
C716S100000, C716S108000, C716S110000, C716S111000, C716S113000, C716S115000
Reexamination Certificate
active
07958471
ABSTRACT:
A design structure for a computer-aided design system for generating a functional design model of an integrated circuit design (having nets comprising wires) determines critical parameters for coupling noise between the wires of the nets and acceptable limits for the critical parameters. Further, methods herein include designing a ring oscillator to have stages, each of the stages measuring only one of the critical parameters. This ring oscillator is then included within an integrated circuit design and associated design structure. The embodiments herein produce an integrated circuit according to this integrated circuit design and operate the ring oscillator within the integrated circuit to measure the critical parameters of the integrated circuit and produce test results. These test results are output to determine whether the test results are within the acceptable limits.
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Fazekas Anthony W.
Ngai Kenneth Mon
Oler, Jr. Joseph J.
Gibb I.P. Law Firm LLC
International Business Machines - Corporation
Lin Sun J
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