Methods of reducing anti-fuse resistance during programming
US5126282A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1990 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | May 16, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S148/055
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An already- programmed anti-fuse is DC soaked by passing DC current through the anti-fuse from a DC voltage source applied across the electrodes of the anti-fuse. The anti-fuse resistance is lower when the DC voltage being applied such that the positive end of the voltage source is applied to the electrode having the higher arsenic concentration. An already programmed anti-fuse is AC soaked, by passing alternating current pulses through the anti-fuse from an AC voltage source applied across the anti-fuse electrodes. This AC soak may even be applied following the controlled polarity DC soak disclosed herein. The AC soaked anti-fuse resistance is even lower than DC soaked anti-fuse under the same soak current level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.