Memory module and method for operating a memory module

Details Memory module and method for operating a memory module Memory module and method for operating a memory module

2007-04-10

2007-04-10

Louie, Wai-Sing (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

C257S678000, C257S690000, C257S723000, C257S730000

Reexamination Certificate

active

10928708

ABSTRACT:
A memory module has an electronic printed circuit board and a plurality of semiconductor memory chips. A series circuit of the semiconductor memory chips is formed with the aid of two leads that can be driven by external contacts of the printed circuit board, and with the aid of connection lines between in each case two semiconductor memory chips. By means of the series circuit, individual semiconductor memory chips can be driven selectively with respect to the rest of the semiconductor memory chips without having to interrupt the regular data transport via the address and control lines. During normal memory operation, chip-specific test data or other data can be interrogated and be read out via an electric loop formed between the further external contacts.

REFERENCES:
patent: 5243703 (1993-09-01), Farmwald et al.
patent: 5357621 (1994-10-01), Cox
patent: 5859809 (1999-01-01), Kim
patent: 6144576 (2000-11-01), Leddige et al.

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