Operating voltage adjustment for aging circuits
US12314106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2023 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Nov 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/31725
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for updating power supply voltages due to variations from aging are described. A functional unit includes a power supply monitor capable of measuring power supply variations in a region of the functional unit. An age counter measures an age of the functional unit. A control unit notifies the power supply monitor to measure an operating voltage reference. When the control unit receives a measured operating voltage reference, the control unit determines an updated age of the region different from the current age based on the measured operating voltage reference. The control unit updates the age counter with the corresponding age, which is younger than the previous age in some cases due to the region not experiencing predicted stress and aging. The control unit is capable of determining a voltage adjustment for the operating voltage reference based on an age indicated by the age counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.