Invention Application
- Patent Title: NONVOLATILE SEMICONDUCTOR MEMORY DEVICE
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Application No.: US17471981Application Date: 2021-09-10
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Publication No.: US20220284953A1Publication Date: 2022-09-08
- Inventor: Daisaburo TAKASHIMA
- Applicant: Kioxia Corporation
- Applicant Address: JP Tokyo
- Assignee: Kioxia Corporation
- Current Assignee: Kioxia Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2021-034802 20210304
- Main IPC: G11C13/00
- IPC: G11C13/00

Abstract:
According to one embodiment, there is provided a nonvolatile semiconductor memory device including a cell array. The cell array includes an array of a plurality of string blocks. Among the plurality of local string blocks, one local string block includes a block selection transistor and remaining local string blocks do not include a block selection transistor. A gate terminal of the block selection transistor of the one local string block is connected to a block selection line. Signals of two word lines connected to two adjacent string blocks in the bit line direction are common signals. Signals of two block selection lines connected to the two adjacent string blocks are independent of each other.
Public/Granted literature
- US11742019B2 Nonvolatile semiconductor memory device Public/Granted day:2023-08-29
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