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:
Jan. 12, 2016
Filed:
Apr. 29, 2014
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
Heung-Jae Cho, Gyeonggi-do, KR;
Bong-Seok Jeon, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01); H01L 23/48 (2006.01); H01L 29/66 (2006.01); H01L 21/74 (2006.01);
U.S. Cl.
CPC ...
H01L 23/481 (2013.01); H01L 21/743 (2013.01); H01L 27/108 (2013.01); H01L 27/10885 (2013.01); H01L 29/66666 (2013.01); H01L 2924/0002 (2013.01);
Abstract
A semiconductor device includes: a punch stop region formed in a substrate; a plurality of buried bit lines formed over the substrate; a plurality of pillar structures formed over the buried bit lines; a plurality of word lines extending to intersect the buried bit lines and being in contact with the pillar structures; and an isolation layer isolating the word lines from the buried bit lines.