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:
May. 26, 2026
Filed:
Mar. 13, 2024
Kioxia Corporation, Tokyo, JP;
Ryu Ogiwara, Yokohama Kanagawa, JP;
Hidehiro Shiga, Yokohama Kanagawa, JP;
Daisaburo Takashima, Yokohama Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a device includes: a memory cell coupled to a bit line and configured to store first data including first, second, and third bits; and a sense amplification circuit configured to perform a first comparison between a bit line voltage and a first reference voltage, and a second comparison between the bit line voltage and a second reference voltage lower than the first reference voltage, and to read the first data from the memory cell based on results of the first and second comparisons. The sense amplification circuit is configured to retain second data having a first code in response to the bit line voltage becoming equal to or lower than the first reference voltage during a first period from a start of operation to a first time point, and retain the first data after the first period.