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. 10, 2015
Filed:
Dec. 30, 2010
Applicant:
Ki Seog Kim, Seoul, KR;
Inventor:
Ki Seog Kim, Seoul, KR;
Assignee:
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 16/06 (2006.01); G11C 11/56 (2006.01); G11C 16/04 (2006.01); G11C 16/26 (2006.01);
U.S. Cl.
CPC ...
G11C 11/5642 (2013.01); G11C 16/0483 (2013.01); G11C 16/26 (2013.01);
Abstract
A semiconductor memory device includes a memory block comprising cell strings each of which includes a plurality of memory cells, a current measurement circuit measure a current flowing through a selected bit line coupled to a selected cell string when a data read operation or a program verification operation is performed, and a logic group configured to change a read voltage, a program verification voltage, or a pass voltage in response to the measured current.