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:
Jan. 31, 2023
Filed:
Sep. 01, 2020
Kioxia Corporation, Minato-ku, JP;
Takeshi Nagatomo, Yokkaichi, JP;
Tatsuo Izumi, Yokkaichi, JP;
Ryota Suzuki, Yokkaichi, JP;
Takuya Nishikawa, Yokkaichi, JP;
Yasuhito Nakajima, Yokkaichi, JP;
Daiki Takayama, Yokkaichi, JP;
Hiroaki Naito, Yokkaichi, JP;
Genki Kawaguchi, Yokkaichi, JP;
Kioxia Corporation, Minato-ku, JP;
Abstract
A semiconductor memory device includes multiple first electrode layers stacked in a first direction, multiple second electrode layers stacked in the first direction, a first columnar body extending through the multiple first electrode layers in the first direction, a second columnar body extending through the multiple second electrode layers in the first direction, a connection part connecting the first columnar body and the second columnar body, and a spacer film having an island configuration surrounding the connection part. The multiple first electrode layers and the multiple second electrode layers are arranged in the first direction, and the connection part and the spacer film are provided between the multiple first electrode layers and the multiple second electrode layers.