Semiconductor device

Details Semiconductor device Semiconductor device

2006-02-24

2010-06-29

Trinh, Hoa B (Department: 2893)

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

Housing or package

C257S700000, C257S784000, C257SE23169

Reexamination Certificate

active

07745915

ABSTRACT:
A mounting board has a plurality of semiconductor memory devices operated in sync with a clock signal, and a semiconductor data processing device which access-controls the semiconductor memory devices. Layouts of data-system terminals of the semiconductor memory devices with respect to memory access terminals of the semiconductor data processing device are determined in such a manner that wirings for data and a data strobe system (RTdq/dqs) become shorter than wirings for a command/address system (RTcmd/add). The wirings for the data and data strobe system (RTdq/dqs) are laid down using an area defined between the semiconductor memory devices. The wirings for the command/address system (RTcmd/add) bypass the side of the mounting board.

REFERENCES:
patent: 6208525 (2001-03-01), Imasu et al.
patent: 6812565 (2004-11-01), Nishimoto et al.
patent: 2005/0204223 (2005-09-01), Ong
patent: 1433252 (2002-01-01), None
patent: 2002-368188 (2002-12-01), None
patent: 2003-204030 (2003-07-01), None
Office Action dated Apr. 3, 2009 (in Chinese); English language translation of Office Action.

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