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:
Dec. 03, 2013
Filed:
Oct. 07, 2010
Hideyuki Yoko, Tokyo, JP;
Naohisa Nishioka, Tokyo, JP;
Chikara Kondo, Tokyo, JP;
Ryuji Takishita, Tokyo, JP;
Hideyuki Yoko, Tokyo, JP;
Naohisa Nishioka, Tokyo, JP;
Chikara Kondo, Tokyo, JP;
Ryuji Takishita, Tokyo, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
Each of the core chips includes a data output circuit that outputs read data to the interface chip in response to a read command, and an output timing adjustment circuit that equalizes the periods of time required between the reception of the read command and the outputting of the read data from the data output circuit among the core chips. With this arrangement, a sufficient latch margin for read data to be input can be secured on the interface chip side. Furthermore, as the output timing is adjusted on each core chip side, there is no need to prepare the same number of latch timing control circuits as the number of core chips on the interface chip side.