System and method for maintaining slack continuity in incremental statistical timing analysis
US9400864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2014 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Jul 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2119/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and a system of maintaining slack continuity in incremental statistical timing analysis includes using a computer to forward propagating both scalar and statistical arrival times in a single timing environment; computing for a timing end point one or more projected statistical slack value; computing a scalar reverse engineered required arrival time from the projected statistical slack value; back propagating the scalar reverse engineered required arrival time using scalar delay values, measuring a resulting slack and performing a redesign based on the reverse engineered scalar required arrival time and resulting slack; and incrementally re-executing selected steps to re-compute a new scalar reverse-engineered required arrival time and new resulting slack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.