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. 02, 2024
Filed:
Aug. 28, 2020
Kioxia Corporation, Tokyo, JP;
Yasuhito Yoshimizu, Yokkaichi Mie, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A semiconductor storage device includes a stacked body, a first columnar portion, a second columnar portion, and second insulating layers. The stacked body includes a plurality of conductive layers and a plurality of first insulating layers alternately stacked in a first direction. The first columnar portion being in a first region, and the second columnar portion being in a second region. The first columnar penetrates the stacked body in the first direction and includes a semiconductor layer. The second columnar portion penetrates the stacked body in the first direction and includes an insulating layer thereon. The second insulating layers are between the second columnar portion and either the conductive layers or the first insulating layers. The insulating layer on the second columnar portion. The second insulating layers are between the insulating layer on the second columnar portion and one of the conductive layers or the first insulating layers.