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. 05, 2023
Filed:
Aug. 26, 2021
Kioxia Corporation, Tokyo, JP;
Hiroki Date, Chigasaki Kanagawa, JP;
Kioxia Corporation, Tokyo, JP;
Abstract
A semiconductor storage device includes: a plurality of first memory cells; a word line connected to gates of the first memory cells; a voltage generation circuit configured to generate voltage to be supplied to the word line on the basis of a set value; and a control unit configured to execute a write sequence that includes a plurality of loops, each loop including a program operation to increase a threshold voltage of at least part of the first memory cells to thereby write data to the first memory cells and a verify operation to verify the data written to the first memory cells. The voltage generation circuit generates voltage to be supplied to the word line at start of the verify operation on the basis of a first set value, and the control unit adjusts the first set value in accordance with progress of the write sequence.