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:
Dec. 14, 2021
Filed:
Jun. 16, 2020
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/24 (2006.01); G11C 29/44 (2006.01);
U.S. Cl.
CPC ...
G11C 29/70 (2013.01); G11C 29/24 (2013.01); G11C 29/4401 (2013.01); G11C 29/76 (2013.01); G11C 29/808 (2013.01); G11C 29/81 (2013.01); G11C 29/814 (2013.01);
Abstract
A memory device includes a data storage region and a spare column remap storage. The data storage region includes a plurality of sub-arrays, and each of the plurality of sub-arrays has a plurality of main columns and a plurality of spare columns. The spare column remap storage includes a plurality of storage units storing column address information of a repaired main column of one of the plurality of sub-arrays and address information of a repaired main column of another of the plurality of sub-arrays into at least one of the plurality of storage units included in the spare column remap storage.