Method and apparatus for performing drive strength adjust optimization in a circuit design
US5724250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | Feb 7, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/327
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.