Tool and method for automatically identifying minimum timing...

Details Tool and method for automatically identifying minimum timing... Tool and method for automatically identifying minimum timing...

2011-03-22

2011-03-22

Doan, Nghia M (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Integrated circuit design processing

Physical design processing

C716S100000, C716S101000, C716S102000, C716S103000, C716S106000, C716S108000, C716S111000, C716S114000

Reexamination Certificate

active

07913213

ABSTRACT:
A design tool for automatically identifying minimum timing violation corrections in an integrated circuit (IC) design includes program instructions executable by a processor to identify locations to add a delay along each circuit path having a minimum timing violation. The tool may also sequentially try each of a plurality of circuit changes that add the delay and to evaluate a result of each circuit change until an acceptable percentage of the minimum timing violation has been corrected. In response to each circuit change, the design tool may update an internal node report, which includes a listing of circuit nodes and a maximum timing slack available at each node, by reducing a maximum slack value of each affected node by an amount of the added delay. The design tool may generate an output report that includes a listing of the circuit changes which correct the minimum timing violations.

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