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:
Nov. 19, 2024
Filed:
Oct. 25, 2023
Kioxia Corporation, Tokyo, JP;
Megumi Ishiduki, Yokkaichi, JP;
KIOXIA CORPORATION, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes a stacked layer body including conductive layers stacked to be apart from each other in a first direction, and including a stair-like end with rising parts and terrace parts, wherein successive first conductive layers including an uppermost conductive layer function as select gate lines for a NAND string, and a first contact connected to the uppermost conductive layer provided to correspond to a first rising part which is an uppermost one of the rising parts. The first contact passes through the uppermost conductive layer to be further connected to a first conductive layer adjacent to the uppermost conductive layer.