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. 19, 2013
Filed:
Feb. 07, 2011
Hideyuki Yoko, Tokyo, JP;
Hideyuki Yoko, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A semiconductor device according to the present invention includes plural controlled chips CCto CCthat hold mutually different layer information, and a control chip IF that supplies in common layer address signals Ato Aand a command signal ICMD to the controlled chips. Each bit that constitutes the layer address signals Ato Ais transmitted via at least two through silicon vias that are connected in parallel for each controlled chip out of plural first through silicon vias. Each bit that constitutes the command signal ICMD is transmitted via one corresponding through silicon via that is selected by an output switching circuit and an input switching circuit. With this configuration, the layer address signals Ato Areach the controlled chips earlier than the command signal ICMD.