Parameter drift prediction
US8239814B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Dec 4, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Sep 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/367
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A set of parameter drifts is recorded over a period of time for each of a series of stress tests on a system at various stress levels. Each set of the recorded parameter drifts is plotted as parameter drift versus time. The plots are then time shifted in relation to a reference plot to form a single parameter drift plot. A non-linear equation is fitted to the single parameter drift plot and then used to predict parameter drift over the life of the system.The non-linear equation may be modified by adding a stress acceleration factor to allow prediction of parameter drift over time at different stress levels.
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