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:
Mar. 13, 2012
Filed:
Sep. 29, 2008
Atsushi Hiraishi, Tokyo, JP;
Toshio Sugano, Tokyo, JP;
Masahiro Yamaguchi, Tokyo, JP;
Yoji Nishio, Tokyo, JP;
Tsutomu Hara, Tokyo, JP;
Koichiro Aoki, Tokyo, JP;
Atsushi Hiraishi, Tokyo, JP;
Toshio Sugano, Tokyo, JP;
Masahiro Yamaguchi, Tokyo, JP;
Yoji Nishio, Tokyo, JP;
Tsutomu Hara, Tokyo, JP;
Koichiro Aoki, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
An address signal line having a stub structure connects between at least three memory elements and a data transferring element and transmits address signals for the memory elements. An address terminal of the data transferring element has an impedance lower than a characteristic impedance of the address signal line. A wiring length TLfrom the data transferring element to a first branch point Swhere a branch line is branched at a shortest distance from the data transferring element is configured to become equal to or greater than a wiring length TLfrom the first branch point Sto a second branch point Swhere a second branch line is branched. A wiring length TLfrom the second branch point Sto a third branch point Swhere a third branch line is branched is configured to become greater than the wiring lengths TLand TL