Invention Grant
- Patent Title: Semiconductor memory device including memory string and plurality of select transistors and method including a write operation
-
Application No.: US16862893Application Date: 2020-04-30
-
Publication No.: US11335388B2Publication Date: 2022-05-17
- Inventor: Hiroki Date
- Applicant: KIOXIA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KIOXIA CORPORATION
- Current Assignee: KIOXIA CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz & Volek PC
- Priority: JPJP2018-166583 20180906
- Main IPC: G11C7/22
- IPC: G11C7/22 ; H01L27/11582 ; H01L27/1157 ; H01L27/11573 ; G11C16/28 ; G11C16/08 ; G11C16/32 ; G11C16/10 ; H01L27/11556 ; H01L27/11524 ; H01L27/11526

Abstract:
In a semiconductor memory device, in a write operation performed to a memory cell transistor, a first voltage is applied to a first word line and a second voltage lower than the first voltage is applied to a second word line. When a command to stop is received during the write operation, a third voltage lower than the second voltage is applied to the first and second word lines, thereafter a fourth voltage higher than the third voltage is applied to a first selection line, thereon or thereafter a fifth voltage higher than the fourth voltage is applied to the first and second word lines, thereafter a sixth voltage lower than the fourth voltage is applied to the first selection line, and thereafter a seventh voltage is applied to the first and second word lines.
Public/Granted literature
- US20200258556A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2020-08-13
Information query