Antifuse latch device with controlled current programming and variable trip point
US6384666B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2001 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Mar 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A latch device is provided having a variable resistive trip point and controlled current programming. The latch device has a trip point current control element that controls an amount of current passing from a voltage source into the latch circuit, thereby varying the resistive trip point of the latch device. The latch device also has a programming current control element that controls an amount of programming current passing through the fuse element during programming. The trip point current reference and a programming current reference are provided by reference circuits having a plurality of selectable inputs that operate to change the current references binarily. An integrated circuit is also provided in which a plurality of the fuse latch devices are connected together in parallel such that the same trip point current reference and programming current reference are supplied to each latch device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.