Method and apparatus for programming anti-fuses using internally generated programming voltage
US5896041A · kind A · utility
19Cited by
19References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1996 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | May 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A programming circuit for an anti-fuse utilizes a boot circuit that charges a capacitor to the supply voltage during a non-programming period. Anti-fuse is to be programmed, the plate of the capacitor to which the supply voltage has been applied is switched to 0 volts, thereby causing the other plate of the capacitor to output a negative voltage. This negative voltage is switched to one plate of an anti-fuse, and the other plate of the anti-fuse receives a positive voltage from an external source. A voltage is thereby applied across the anti-fuse that is greater than any voltage applied to any node of the integrated circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.