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. 25, 2011
Filed:
Dec. 11, 2007
Bong-yong Lee, Suwon-si, KR;
Heon-kyu Lee, Suwon-si, KR;
Kwang-soo Kim, Jeonju-si, KR;
Sang-youl Kwon, Yongin-si, KR;
Bong-Yong Lee, Suwon-si, KR;
Heon-Kyu Lee, Suwon-si, KR;
Kwang-Soo Kim, Jeonju-si, KR;
Sang-Youl Kwon, Yongin-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A semiconductor memory device includes a main cell array region, a first redundancy cell array region and a first dummy cell array region that are formed at one side of the main cell array region, and a second redundancy cell array region and a second dummy cell array region that are formed at the other side of the main cell array region. The first redundancy cell array region includes a first redundancy bitline, and the first dummy cell array region includes first dummy bitlines. The second redundancy cell array region includes a second redundancy bitline, and the second dummy cell array region includes second dummy bitlines. The first and second redundancy cell array regions are disposed closer to the main cell array region than the first and second dummy cell array regions.