Method for analyzing placement context sensitivity of standard cells
US8661393B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Jun 28, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/392
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disclosed method for evaluating placement context sensitivity in the design of an integrated circuit includes accessing a standard cell library comprising a database of standard cells and determining generating boundary data for each of the standard cells. The boundary data for a standard cell indicates the layout of features located within boundary regions of the standard cell. The method includes merging or consolidating boundary data for any two standard cells if their boundary data is the same to determine a canonical or minimal set of boundary regions. The disclosed method further includes enumerating and evaluating all combinations of pairs of the canonical boundary regions and, responsive to identifying of a proximity-based sensitivity or exception, modifying, notating, or otherwise remediating the applicable one or more standard cells that correspond to the boundary region combination that raised the exception.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.