Electrical fuse programming control circuit
US6842065B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Feb 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electrical fuse programming control circuit includes a plurality of fuse blocks each having a plurality of electrical fuses and an end fuse block. When all of the fuse blocks are programmed, the end fuse block is enabled and generates a programming control signal. The electrical fuse programming control circuit also includes a comparing unit that selectively transmits a fuse cutting signal to the plurality of fuse blocks in response to the programming control signal from the end fuse block. When programming of all of the fuse blocks is complete, reprogramming of the fuse blocks is not performed when an illegal program command is provided as an input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.