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:
Aug. 03, 1999
Filed:
Dec. 10, 1997
Applicant:
Inventors:
Assignee:
Samsung Electronics, Co., Ltd., Suwon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
3652257 ; 365200 ; 36523006 ;
Abstract
A redundant fuse circuit for enabling a redundant memory cell to replace a defective memory cell in a semiconductor memory device is shown where the redundant fuse circuit includes a selection fuse coupled between a precharging device of the redundant fuse circuit and a power supply terminal. When the redundant fuse circuit is unused, the selection fuse is configured to be cut by a laser beam thereby preventing precharging of the redundant fuse circuit and, consequently, preventing an instantaneous peak current from occurring responsive to input to the redundant fuse circuit of memory cell address information corresponding to normal memory cells.