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:
Feb. 22, 2022
Filed:
Aug. 23, 2017
Kioxia Corporation, Minato-ku, JP;
Tatsuya Kato, Yokkaichi, JP;
Fumitaka Arai, Yokkaichi, JP;
Katsuyuki Sekine, Yokkaichi, JP;
Toshiyuki Iwamoto, Mie, JP;
Yuta Watanabe, Yokkaichi, JP;
Wataru Sakamoto, Yokkaichi, JP;
Hiroshi Itokawa, Oita, JP;
Kioxia Corporation, Minato-ku, JP;
Abstract
A semiconductor memory device according to an embodiment, includes a semiconductor pillar extending in a first direction, a first electrode extending in a second direction crossing the first direction, a second electrode provided between the semiconductor pillar and the first electrode, a first insulating film provided between the first electrode and the second electrode and on two first-direction sides of the first electrode, a second insulating film provided between the second electrode and the first insulating film and on two first-direction sides of the second electrode, a third insulating film provided between the second electrode and the semiconductor pillar, and a conductive film provided inside a region interposed between the first insulating film and the second insulating film.