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:
Sep. 22, 2026
Filed:
Mar. 01, 2022
Kioxia Corporation, Tokyo, JP;
Yoichi Minemura, Yokkaichi Mie, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a semiconductor memory device includes first conductive layers stacked on a substrate at a first pitch, second conductive layers stacked on the substrate at a second pitch, and third conductive layers stacked on the substrate at a third pitch. The third conductive layers are between the substrate and the second conductive layers in a first direction. A semiconductor layer extends in the first direction through the first conductive layers, the second conductive layers, and the third conductive layers. The semiconductor layer has a first portion facing the first conductive layers and the second conductive layers and a second portion facing the third conductive layers. The second pitch is greater than the first pitch and the third pitch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile