Expected lifetime management
US10310548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2016 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Apr 20, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit block is operated, for limited times, at a boosted frequency that is above the conventional maximum operating frequency specified to achieve an expected lifetime goal. The aging caused by both regular operation and boosted frequency operation is estimated and tracked block-by-block over the both the lifetime of the part and over shorter windows of time (e.g., daily, weekly, monthly, etc.) The shorter time windows are dynamically assigned aging budgets to ensure the part will still be expected to meet the expected lifetime even though its aging will be at an ‘accelerated’ rate whenever the block is operated at a boosted frequency. Aging budgets are assigned based on estimates of the amount of aging the block has experienced, and the amount of aging budget that is left for that time window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.