Patent · US Expired

Dynamic semiconductor memory with refresh and method for operating such a memory

US6590824B2 · kind B2 · utility

4Cited by

4References

14Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Alexander Benedix · Hersbruck, DE
Reinhard Düregger · Poing, DE
Robert Hermann · Chula Vista, US
Roland Barth · Schreiber, CA

Key dates

Filing date	Mar 28, 2002
Grant date	Jul 8, 2003
Priority date	—
Expiry date	Mar 28, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG11C11/4099
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A dynamic semiconductor memory and a method for operating such a memory includes memory banks with memory cells disposed in rows, and registers associated with the memory banks for storing an address of an open, activated word line. In the event of an external refresh command, a control device causes, after the refresh operation, the state of the memory banks to be reestablished, in particular, the word line whose address was stored in the register to be reactivated. Such a purely on-chip measure increases the operating speed of the memory.

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