Invention Grant
- Patent Title: Semiconductor memory device
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Application No.: US16557898Application Date: 2019-08-30
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Publication No.: US11322204B2Publication Date: 2022-05-03
- Inventor: Taira Shibuya
- Applicant: KIOXIA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KIOXIA CORPORATION
- Current Assignee: KIOXIA CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Kim & Stewart LLP
- Priority: JPJP2019-045140 20190312
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C16/10 ; G11C16/24 ; G11C16/26 ; G11C16/34

Abstract:
A semiconductor memory device includes first and second memory cells, adjacent first and second word line connected to gates of the first and second memory cells, respectively, a word line driver for the first and second word lines, a bit line connected to the first and second memory cells, a sense amplifier circuit configured to detect data stored in the memory cells via the bit line and apply a voltage to the bit line, and a control circuit configured to control the word line driver and the sense amplifier circuit to execute a write operation. During a write operation performed on the first memory cell to increase a threshold voltage of the first memory cell to a target state, the control circuit changes the bit line voltage of the bit line according to a difference between the target state and a threshold voltage state of the second memory cell.
Public/Granted literature
- US20200294600A1 SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2020-09-17
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