Method and apparatus for performing drive strength adjust optimi

Details Method and apparatus for performing drive strength adjust optimi Method and apparatus for performing drive strength adjust optimi

1996-02-07

1998-03-03

Teska, Kevin J.

Boots, shoes, and leggings

364489, G06F 1750

Patent

active

057242500

ABSTRACT:
A method and apparatus for efficiently optimizing a circuit design by substituting identified cells within the circuit design with logically equivalent cells having different drive strengths. The present invention eliminates the need to update the design database and to place and route the circuit design during each design iteration. Rather, an improved extraction tool is provided which incorporates a cell substitution list, and updates the RC file therefrom. The updated RC file is used by the timing analysis tool to determine if the updated design will meet the design specification. After the design meets the design specification, a final place and route may be performed.

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Tufte, "CML III Bipolar Standard Cell Library", Proceedings of the 1988 Bipolar Circuits and Technology Meeting, Minneapolis, Minnesota, Sep., 198, pp. 180-182.

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