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:
Dec. 16, 2014
Filed:
Aug. 31, 2012
Applicant:
Hwang Huh, Cheongju-si, KR;
Inventor:
Hwang Huh, Cheongju-si, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device of the present invention includes a memory cell array with cell strings having word lines stacked on a substrate and a vertical channel layer formed through the word lines, a peripheral circuit configured to select one of the word lines and perform a program operation on the selected word line, and a control circuit configured to control the peripheral circuit to perform the program operation by applying a program voltage to a word line selected for the program operation, applying a ground voltage to a word line of which a program operation has been completed and applying a pass voltage to the other word lines.