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. 08, 2026
Filed:
Jun. 14, 2024
Kioxia Corporation, Tokyo, JP;
Yuki Inuzuka, Yokohama Kanagawa, JP;
KIOXIA CORPORATION, Tokyo, JP;
Abstract
A semiconductor memory device including: circuitry configured to perform control to cause a channel of a first memory string including a first memory cell and a second memory cell connected in series to be in a floating state in which the channel is electrically insulated from a first bit line connected to a first end of the first memory string and a source line connected to a second end of the first memory string while applying a write voltage to a first word line connected to a gate of the first memory cell; and decrease a voltage of a second word line connected to a gate of the second memory cell from a first voltage that is less than the write voltage to a second voltage that is less than the first voltage after placing the channel of the first memory string into the floating state.