Circuitry and method for programming an electrically programmable fuse
US7315193B2 · kind B2 · utility
5Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2005 |
| Grant date | Jan 1, 2008 |
| Priority date | — |
| Expiry date | Feb 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Circuitry that includes a voltage controller (224) for providing a variable gate signal (220) for controlling the gate of a programming transistor (212) used in conjunction with programming an electrically programmable fuse (“eFuse”) (204) of an integrated circuit (200). The voltage controller adjusts the gate signal depending upon whether the circuitry is in an eFuse programming mode or an eFuse resistance measuring mode. The voltage controller may optionally include a voltage tuner (252) for tuning the gate signal to account for operating variations in the programming transistor caused by manufacturing variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.