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:
Oct. 27, 2015
Filed:
Sep. 04, 2012
Applicant:
Kyung Sik Mun, Gyeonggi-do, KR;
Inventor:
Kyung Sik Mun, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/34 (2006.01); G11C 16/24 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3459 (2013.01); G11C 16/24 (2013.01); G11C 16/0483 (2013.01);
Abstract
The semiconductor memory device includes a memory cell array including a plurality of cell transistors, and a page buffer configured to perform an verification operation for verifying a program state of a selected cell transistor by sensing a voltage of a sense node connected to a selected bit line of the memory cell array through a bit line selection transistor, wherein a logic level corresponding to a voltage of the selected bit line is constantly maintained regardless of the program state of the selected cell transistor during the verification operation.