Patent · US Expired

Directional coupling memory module

US6438012B1 · kind B1 · utility

44Cited by
12References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 12, 2000
Grant dateAug 20, 2002
Priority date
Expiry dateMay 12, 2020

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.