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:
Sep. 03, 2013
Filed:
Apr. 28, 2011
Applicant:
Hyung Seok Kim, Seoul, KR;
Inventor:
Hyung Seok Kim, Seoul, KR;
Assignee:
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/06 (2006.01); G11C 16/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes a memory string coupled to a bit line, a page buffer configured to sense a sensing current of the bit line in an erase verification operation or a program verification operation, and a sensing control circuit configured to differently set a level of the sensing current in the erase verification operation and the program verification operation in order to sense the threshold voltage level of a selected memory cell of the memory string.
Published as: