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:
Jan. 26, 2010
Filed:
Dec. 14, 2007
Applicants:
Chiaki Dono, Tokyo, JP;
Yasuji Koshikawa, Tokyo, JP;
Jun Suzuki, Tokyo, JP;
Inventors:
Assignee:
Elpida Memory, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes first and second bus regions, a third bus region laid out along a center line, a first cell region laid out between a first side and the first bus region, a second cell region laid out between a second side and the second bus region, third and fourth cell regions laid out between the first and second bus regions and laid out toward a third side and a fourth side respectively seen from the third bus region, and a data input/output pad string laid out along the third bus region.