Patent · US Expired

Directional coupling memory module

US6654270B2 · kind B2 · utility

19Cited by
13References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 10, 2002
Grant dateNov 25, 2003
Priority date
Expiry dateJul 10, 2022

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG11C5/04
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

Conventionally, wiring length occupied by a directional coupler decides intervals between modules connected to a bus, and those intervals can not be shortened furthermore. Accordingly, the intervals between modules are wide and high-density mounting is not possible. In the present invention, a directional coupler in a memory bus is formed by a leader line from a controller and a leader line from a memory chip and contained within a memory module. Accordingly, pitch between the modules can be reduced and high-density mounting can be realized.

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