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:
Sep. 28, 2004
Filed:
Jan. 23, 2003
Applicant:
Inventor:
Hi-choon Lee, Yongin, KR;
Assignee:
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
A semiconductor memory device that efficiently replaces defective word lines by redundancy word lines. The semiconductor memory device includes a plurality of banks, each bank having a plurality of normal word lines and a plurality of redundancy word lines. A defective word line can be replaced by the redundancy word lines when defects occur in the normal word lines. When word line defects occur, redundancy word lines banks adjacent to the bank having the defective work lines may be used.