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:
Nov. 10, 2026
Filed:
Jun. 16, 2021
Kioxia Corporation, Tokyo, JP;
Taira Shibuya, Fujisawa Kanagawa, JP;
Noboru Shibata, Kawasaki Kanagawa, JP;
Hironori Uchikawa, Fujisawa Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A semiconductor memory device according to an embodiment includes first memory cells, second memory cells, and a controller. A threshold voltage of each of the first memory cells and the second memory cells is included in one of first through sixteenth state. 8-bit data that includes a first through eighth bit is stored using a combination of a threshold voltage of the first memory cell and a threshold voltage of the second memory cell. The controller is configured to: apply in parallel a plurality of types of read voltages to each of the first memory cells and the second memory cells and externally output data confirmed based on first data read from the first memory cells and second data read from the second memory cells.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile