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. 11, 2007
Filed:
Dec. 23, 2005
Applicants:
Han-gu Sohn, Suwon-si, KR;
Sei-jin Kim, Seongnam-si, KR;
Inventors:
Han-Gu Sohn, Suwon-si, KR;
Sei-Jin Kim, Seongnam-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor device is provided. The semiconductor device includes a storage part storing an address for weak cells in a nonvolatile state; and a dynamic semiconductor memory device including: a memory cell array having normal cells and the weak cells to be refreshed; and a refresh control part performing a refresh operation for the weak cells, wherein a refresh period for the weak cells is shorter than a refresh period for the normal cells when the address applied in a refresh operation mode coincides with the address stored in the storage part.