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:
Oct. 29, 2019
Filed:
Sep. 13, 2016
Toshiba Memory Corporation, Minato-ku, JP;
Ming Hu, Yokkaichi, JP;
TOSHIBA MEMORY CORPORATION, Minato-ku, JP;
Abstract
A semiconductor memory device according to an embodiment comprises a substrate, a plurality of first conductive films, a memory columnar body, and a first structure. The plurality of first conductive films are stacked in a first direction above the substrate and extend in a second direction intersecting the first direction and in a third direction intersecting the first direction and the second direction. The memory columnar body extends in the first direction and has a side surface covered by the plurality of first conductive films. The first structure extends in the second direction and divides the plurality of first conductive films in the third direction. Moreover, each of the memory columnar body and the first structure comprises: a memory insulating film provided on a side surface of the first conductive film; and a first semiconductor layer provided on a side surface of the memory insulating film.