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. 09, 2016
Filed:
Dec. 08, 2014
SK Hynix Inc., Gyeonggi-do, KR;
Jung Ryul Ahn, Gyeonggi-do, KR;
Jum Soo Kim, Gyeonggi-do, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
A semiconductor device includes a first memory string and a second memory string. The first memory string includes a plurality of first main memory cells formed on a pipe transistor of a semiconductor substrate and a plurality of first dummy memory cells connected between the first main memory cells and a common source line. The second memory string includes a plurality of second main memory cells formed on the pipe transistor and a plurality of second dummy memory cells connected between the second main memory cells and a bit line. The number of the second dummy memory cells is greater than the number of the first dummy memory cells.