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:
Aug. 02, 2013
Applicant:
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Inventor:
Il Young Kwon, Seoul, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 11/34 (2006.01); H01L 27/115 (2006.01); G11C 16/04 (2006.01); H01L 29/792 (2006.01);
U.S. Cl.
CPC ...
H01L 27/11582 (2013.01); G11C 16/0483 (2013.01); H01L 29/7926 (2013.01);
Abstract
A semiconductor memory device includes a first dummy transistor coupled to a bit line, a first select transistor formed where a first selection line surrounds a vertical channel layer, a second dummy transistor coupled to a common source line, a second select transistor formed where a second selection line surrounds the vertical channel layer, and main cell transistors coupled between the first and second select transistors.