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:
Feb. 06, 2018
Filed:
Aug. 23, 2016
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Jong Sam Kim, Cheongju-si, KR;
SK hynix Inc., Icheon-si, Gyeonggi-do, KR;
Abstract
A semiconductor device may include normal memory cells, redundancy memory cells, a fuse array, and a controller. The normal memory cells may be coupled to a plurality of word lines and bit lines. The redundancy memory cells may be coupled to a plurality of word lines and bit lines, and may replace one or more normal memory cells that are defective. The fuse array may include a redundancy address storage region configured to store addresses of the redundancy memory cells, an error correction information storage region configured to store error correction information for correcting errors of addresses of the redundancy memory cells, stored in the redundancy address storage region, and a weak address storage region configured to store an address of a weak cell among the normal memory cells. The controller may perform a repair operation based on a redundancy address and perform a refresh operation on a weak cell corresponding to the address of the weak cell.