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:
Mar. 28, 2017
Filed:
Oct. 30, 2015
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Sung-Soo Chi, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/08 (2006.01); G11C 17/16 (2006.01); G11C 29/24 (2006.01); G11C 17/18 (2006.01); G11C 29/44 (2006.01);
U.S. Cl.
CPC ...
G11C 29/78 (2013.01); G11C 17/16 (2013.01); G11C 29/08 (2013.01); G11C 29/24 (2013.01); G11C 17/18 (2013.01); G11C 2029/4402 (2013.01);
Abstract
A semiconductor memory device includes: a word line driving unit suitable for performing activation operations for a plurality of normal word lines and a plurality of redundancy word lines in response to test addresses; and a test control unit suitable for controlling a number of activations of each of the plural normal and redundancy word lines to be equal based on repair information corresponding to a repair target word line among the plural normal word lines during a test operation.