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:
Aug. 06, 2013
Filed:
Nov. 25, 2011
Applicant:
Sung-woong Chung, Gyeonggi-do, KR;
Inventor:
Sung-Woong Chung, Gyeonggi-do, KR;
Assignee:
Hynix Semiconductor Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 47/00 (2006.01); H01L 27/108 (2006.01); H01L 29/82 (2006.01);
U.S. Cl.
CPC ...
Abstract
A semiconductor memory device includes an isolation layer formed in a substrate and defining an active region, a trench formed in the substrate and defining a part of the active region as an active pillar; a word line formed inside the trench, a sub-source line formed under the trench and crossing the word line, a main source line formed over the substrate, coupled to the sub-source line, and crossing the word line, a variable resistor pattern formed over the active pillar, and a bit line contacting the variable resistor pattern and crossing the word line.