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:
Aug. 05, 2025
Filed:
Dec. 05, 2023
Kioxia Corporation, Tokyo, JP;
Ken Tanaka, Tokyo, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
According to one embodiment, a controller, in a case where a first difference between a first number of times of erase and a second number is equal to or smaller than a second threshold, executes a copy operation in a first mode, the second number of times of erase is larger than the first number of times of erase. In a case where the first difference is larger than the second difference, the controller executes the copy operation in a second mode. A ratio of a copy amount to a cumulative data write amount in a first mode is smaller than a ratio of the copy amount to the cumulative data write amount in the second mode. The cumulative data write amount is an amount of data written to the nonvolatile memory based on write commands.