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:
Jul. 22, 2008
Filed:
May. 23, 2005
Hiroshi Otori, Mizuho, JP;
Masatoshi Hasegawa, Hamura, JP;
Mitsugu Kusunoki, Kunitachi, JP;
Masatoshi Sakamoto, Hamura, JP;
Hiroshi Otori, Mizuho, JP;
Masatoshi Hasegawa, Hamura, JP;
Mitsugu Kusunoki, Kunitachi, JP;
Masatoshi Sakamoto, Hamura, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A semiconductor memory device that satisfies needs of both a large number of memory banks and a higher operation speed is provided. A semiconductor memory device includes a plurality of data terminal pads, and a plurality of memory banks independently subject to memory access. Each of the memory banks is divided into a plurality of submemory banks. The data terminal pads are also divided into a plurality of groups so as to be associated with submemory banks obtained by the division. Blocks each including submemory banks obtained by the division and data terminal pads associated with the submemory banks are arranged so as not to overlap each other on a semiconductor chip.