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:
Apr. 02, 2024
Filed:
Nov. 30, 2020
Kioxia Corporation, Tokyo, JP;
Yasuhiro Uchimura, Yokkaichi, JP;
Tatsufumi Hamada, Nagoya, JP;
Shinichi Sotome, Yokkaichi, JP;
Tomohiro Kuki, Yokkaichi, JP;
Yasunori Oshima, Yokkaichi, JP;
Osamu Arisumi, Kuwana, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a memory device includes a substrate; a structure including a plurality of conductive layers stacked on the substrate; and a pillar arranged inside the structure and including a semiconductor layer that extends in a direction perpendicular to a surface of the substrate. The semiconductor layer includes a first portion on a side of an upper portion of the structure, and a second portion between the first portion and the substrate. The first portion has a thickness larger than a thickness of the second portion.