Patent · US Expired

Semiconductor memory module

US7061784B2 · kind B2 · utility

80Cited by

6References

10Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Andreas Jakobs · Birkenfeld, DE
Hermann Ruckerbauer · Radolfzell, DE
Maksim Kuzmenka · Birkenfeld, DE

Key dates

Filing date	Jul 8, 2004
Grant date	Jun 13, 2006
Priority date	—
Expiry date	Jul 17, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG11C7/10
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a semiconductor memory module having at least one memory chip and a buffer chip, which drives clock, address and command signals to the memory chip and drives data signals to, and receives them from, the memory chip via a module-internal clock, address, command and data bus. The buffer chip forms an interface to an external memory main bus. The data bus lines and/or the clock, command and address bus lines are respectively connected to the buffer chip at their two ends and are capable of being driven by the buffer chip from these two ends. Control means are being provided and set up in such a manner that they respectively match the directions of propagation of the data signals and of the clock, command and address signals on the corresponding bus lines during writing and reading.

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