Patent · US Expired

Circuit configuration for driving a programmable link

US6868028B2 · kind B2 · utility

10Cited by

6References

9Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Robert Kaiser · Kaufering, DE
Florian Schamberger · Bad Reichenhall, DE

Key dates

Filing date	Jun 20, 2003
Grant date	Mar 15, 2005
Priority date	—
Expiry date	Aug 30, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG11C17/16
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A circuit configuration for driving a programmable link has a drive circuit for the selection and blowing of the fuse, and also a shift register, by which an activation signal can be fed to the drive circuit. In order to provide the data to be blown, in a preferred embodiment, a volatile memory cell may be provided. The present circuit configuration enables the blowing of fuses and thus repair of defective memory cells in mass memories even after encapsulation of a chip having the mass memory. Moreover, the shift register described effectively prevents impermissibly high currents from being able to occur as a result of simultaneous blowing of too many fuses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.