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:
Jul. 16, 2024
Filed:
May. 21, 2021
SK Hynix Inc., Icheon-si, KR;
Jae Taek Kim, Icheon-si, KR;
SK hynix Inc., Icheon-si, KR;
Abstract
A semiconductor device includes a cell stack structure including first cell stack layers and stack conductive layers, which are alternately stacked. The semiconductor device also includes a dummy stack structure including first dummy stack layers and second dummy stack layers, which are alternately stacked. The semiconductor device further includes a cell plug penetrating the cell stack structure and a cell chip guard penetrating the dummy stack structure, wherein the cell chip guard surrounds the cell stack structure and the cell plug. A level of a bottom surface of a cell chip guard is substantially equal to that of a bottom surface of the cell plug.