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:
Apr. 15, 2008
Filed:
Aug. 07, 2006
Du-yeul Kim, Suwon-si, KR;
Byung-chul Kim, Suwon-si, KR;
Du-Yeul Kim, Suwon-si, KR;
Byung-Chul Kim, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A semiconductor memory device includes a memory cell array a redundant enable signal generating circuit and redundant decoder. The memory cell array includes memory cell array blocks including column selecting signal lines and lower and upper blocks. The redundant enable signal generating circuit programming defective addresses, during a mode setting operation and generating a redundant enable signal when the defective addresses are applied during an operation. The redundant decoder including decoders selecting a corresponding redundant column selecting signal line in response to the redundant enable signal, a corresponding block address, and a lower and upper block address, wherein each of the of decoders is electrically connected to one of the lower and upper blocks.