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:
Jul. 08, 2025
Filed:
Aug. 10, 2022
Kioxia Corporation, Tokyo, JP;
Mitsuaki Honma, Fujisawa Kanagawa, JP;
Noboru Shibata, Kawasaki Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a memory device is configured to execute an efficient read operation is provided. The memory device includes a plurality of memory cells, a word line, and a controller. Each of the memory cells stores first to fifth bit data based on the threshold voltage. The memory cells store a first page to a fifth page respectively corresponding to the first bit data to the fifth bit data. A word line is coupled to the memory cells. A controller executes a read operation for reading data from the memory cells by applying a read voltage to the word line. Numbers of times the controller applies read voltages different from one another to the word line in read operations for the first page to the fifth page are 7, 6, 6, 6, and 6, respectively.