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. 04, 2020
Filed:
Jul. 17, 2018
Applicant:
SK Hynix Inc., Icheon-si, Gyeonggi-do, KR;
Inventors:
Assignee:
SK hynix Inc., Icheon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/1158 (2017.01); H01L 21/033 (2006.01); H01L 21/28 (2006.01); H01L 21/768 (2006.01); H01L 27/11582 (2017.01); H01L 27/11548 (2017.01); H01L 27/11575 (2017.01); H01L 27/11556 (2017.01);
U.S. Cl.
CPC ...
H01L 27/11582 (2013.01); H01L 21/0332 (2013.01); H01L 27/11548 (2013.01); H01L 27/11556 (2013.01); H01L 27/11575 (2013.01);
Abstract
A semiconductor device includes a cell structure; n first pad structures formed on one side of the cell structure and each configured to have a step form in which 2n layers form one stage; and n second pad structures formed on the other side of the cell structure each configured to have a step form in which 2n layers form one stage, wherein n is a natural number of 1 or higher, and the first pad structures and the second pad structures have asymmetrical step forms having different heights.