Patent · US Expired

Semiconductor memory device

US7085881B2 · kind B2 · utility

1Cited by
17References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 9, 2003
Grant dateAug 1, 2006
Priority date
Expiry dateFeb 11, 2025

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C2207/229
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A semiconductor memory device includes a bit line, a memory cell coupled to the bit line and a word line coupled to the memory cell. A first time between receiving a write command for a write operation in order to write data to the memory cell and the beginning of the write operation is different from a second time between receiving a refresh command for a refresh operation in order to refresh data stored in the memory cell and beginning the write operation.

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