One-time programmable fuse read
US8817517B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2011 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Jun 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This document discusses, among other things, a reference voltage generator circuit coupled to a plurality of fuse read circuits. The reference voltage generator circuit can be configured to mirror a reference current to produce a reference voltage and a gate bias voltage. The plurality of fuse read circuits can each be coupled to the reference voltage generator circuit and can also be coupled to a fuse of a plurality of fuses. Each fuse read circuit of the plurality of fuse read circuits can be configured to mirror the reference current using the gate bias voltage to produce a fuse read voltage across each fuse coupled to the plurality of fuse read circuits. Each fuse read circuit of the plurality of fuse read circuits can compare the fuse read voltage of each fuse and the reference voltage and can indicate a state of each fuse coupled to each fuse read circuit using the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.