The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 2010
Filed:
Feb. 24, 2006
Motoo Suwa, Saitama, JP;
Hikaru Ikegami, Koganei, JP;
Takafumi Betsui, Kodaira, JP;
Renesas Technology Corp., Tokyo, JP;
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.