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:
Sep. 03, 2021
Kioxia Corporation, Tokyo, JP;
Tsutomu Nakanishi, Kanagawa, JP;
Yasuaki Ootera, Kanagawa, JP;
Nobuyuki Umetsu, Kanagawa, JP;
Michael Arnaud Quinsat, Kanagawa, JP;
Masaki Kado, Kanagawa, JP;
Susumu Hashimoto, Tokyo, JP;
Shiho Nakamura, Kanagawa, JP;
Naoharu Shimomura, Tokyo, JP;
Tsuyoshi Kondo, Kanagawa, JP;
Mutsumi Okajima, Mie, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A storage device includes: a memory unit and a first pillar. The first pillar includes: a first region having a third portion between a first and a second portion respectively having a first and a second maximum diameter, and having a first minimum diameter, the first and second portions defining a first distance; a second region having a sixth portion between a fourth and a fifth portion respectively having a third and a fourth maximum diameter, and having a second minimum diameter, the fourth and fifth portions defining a second distance; and a third region between the first and second regions, having a ninth portion between a seventh and an eighth portion respectively having a fifth and a sixth maximum diameter, and having a third minimum diameter, the seventh and eighth portions defining a third distance shorter than each of the first and second distances.