Patent · US Expired

Semiconductor memory device and memory module using the same

US5818792A · kind A · utility

12Cited by
5References
20Claims
0Family size

Assignees

Inventors

Key dates

Filing dateFeb 25, 1997
Grant dateOct 6, 1998
Priority date
Expiry dateFeb 25, 2017

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C29/832
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Input/output terminals of a first semiconductor memory device in which failures or defects exist in units of memory mats and input/output terminals of a second semiconductor memory device having redundant memory mats are connected to one another on a mounted substrate to thereby relieve the failures in the memory mat units. A power source is substantially cut off from supplying to a faulty memory mat.

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