Circuit for detection of the state of an integrated circuit fuse in a balanced fuse configuration
US5291139A · kind A · utility
25Cited by
9References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 10, 1991 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Apr 10, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit for the detection of a fuse with oxide vertical fusing has another fuse that is of the same type but cannot be blown and, in parallel with each of the fuses, a voltage reference circuit. The output of each of the voltage reference circuits is an input of a differential comparator. This differential comparator is preferably provided with a voltage reference circuit that is independent of the supply voltage Vcc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.