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:
Apr. 21, 2025
Filed:
Jan. 23, 2023
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventor:
Suk Hwan Choi, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2005.12); G11C 29/12 (2005.12); G11C 29/18 (2005.12); G11C 29/46 (2005.12);
U.S. Cl.
CPC ...
G11C 29/12005 (2012.12); G11C 29/18 (2012.12); G11C 29/46 (2012.12); G11C 2029/1202 (2012.12); G11C 2029/1802 (2012.12);
Abstract
The present technology includes: a current mirror configured to apply a test current that is generated by a test voltage to a selected word line, among a plurality of word lines, and to generate a copy current by copying the test current; a comparison circuit configured to compare at least one reference current with the copy current to generate a comparison result signal; and a test control circuit configured to perform a first noise control mode that charges unselected word lines, among the plurality of word lines, with electric charges, in response to a test mode signal and floats the unselected word lines.