Memory module and memory system having an expandable signal...

Details Memory module and memory system having an expandable signal... Memory module and memory system having an expandable signal...

2007-01-09

2007-01-09

Mai, Son L. (Department: 2827)

Static information storage and retrieval

Hardware for storage elements

C365S063000, C361S728000, C361S729000

Reexamination Certificate

active

10628517

ABSTRACT:
A memory module has a plurality of DRAMs (115), which share a bus line, on the front surface and the back surface of a board. The bus line is connected through a via hole (113) from a terminal (111) to one end of a strip line (112), and the other end of the strip line is connected to a strip line in the other layer through a via hole (119) provided for looping back the line. A termination resistor (120), provided near a termination voltage terminal (VTT), is connected to the looped-back strip line in the other layer through a via hole. The DRAM terminals are connected to the strip line each through a via hole. This memory module is mounted on a motherboard, on which a memory controller is provided, through a connector. The effective characteristic impedance of the bus line is matched with the characteristic impedance of the line in the motherboard.

REFERENCES:
patent: 5530623 (1996-06-01), Sanwo et al.
patent: 6142830 (2000-11-01), Loeffler
patent: 6172895 (2001-01-01), Brown et al.
patent: 6392897 (2002-05-01), Nakase et al.
patent: 6438012 (2002-08-01), Osaka et al.
patent: 6449166 (2002-09-01), Sly et al.
patent: 6480409 (2002-11-01), Park et al.
patent: 6496380 (2002-12-01), Li et al.
patent: 6519173 (2003-02-01), Funaba et al.
patent: 6590781 (2003-07-01), Kollipara et al.
patent: 6661690 (2003-12-01), Moriarty et al.
patent: 6742098 (2004-05-01), Halbert et al.
patent: 6765800 (2004-07-01), Haba et al.
patent: 6772262 (2004-08-01), Park et al.
patent: 6871253 (2005-03-01), Greeff et al.
patent: 7016212 (2006-03-01), Shibata et al.

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