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:
Feb. 22, 2022
Filed:
Aug. 30, 2019
Toshiba Memory Corporation, Tokyo, JP;
Yoshinori Ito, Yokkaichi Mie, JP;
Toshiba Memory Corporation, Tokyo, JP;
Abstract
A device includes: a substrate; a first wiring layer above the substrate; a second wiring layer above the first wiring layer; a first insulating film on the first and second wiring layers; a second insulating film in the first insulating film, provided at a position overlapping with a part of the first wiring layer and a part of the second wiring layer in a first direction perpendicular to a surface of the substrate, and including a first portion higher than an upper surface of an end portion of the second wiring layer and a second portion lower than the upper surface of the end portion of the second wiring layer; and a plug via the second insulating film in the first insulating film, provided on the upper surface of the end portion of the second wiring layer, and electrically connected to the second wiring layer.