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:
Dec. 09, 2025
Filed:
Dec. 17, 2021
Applicant:
Kioxia Corporation, Tokyo, JP;
Inventor:
Muneyuki Tsuda, Ichinomiya, JP;
Assignee:
Kioxia Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H10B 43/27 (2023.01); H10B 41/27 (2023.01); H10B 41/35 (2023.01); H10B 43/35 (2023.01);
U.S. Cl.
CPC ...
H10B 43/27 (2023.02); H10B 41/27 (2023.02); H10B 41/35 (2023.02); H10B 43/35 (2023.02);
Abstract
A semiconductor device according to an embodiment includes a plurality of conductive layers stacked apart from each other and extending in a plate shape in a direction crossing a stacking direction; a channel body including a semiconductor film and penetrating the plurality of conductive layers; a memory film including a charge accumulation film and provided between the plurality of conductive layers and the channel body; and a high dielectric constant (high-k) film arranged between the plurality of conductive layers and the memory film while being divided in a circumferential direction surrounding the memory film.