Electrically programmable fuse bit
US7907465B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Oct 9, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One-time programmable (OTP) nonvolatile fuse memory cells are disclosed that do not require decoding or addressing for reading their data content. Each fuse memory cell has its content latched at its output and available at all times and can be used, for example, for code storage memories, serial configuration memories, and as individual fuse bits for ID (identification), trimming, and other post-fabrication System-on-Chip (SoC) customization needs. Means are also provided for temporary data storage for design testing, etc. In alternative embodiments, using two differentially programmed fuses in a single memory cell, the selection and programming circuitry are merged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.