Invention Application
- Patent Title: METHOD OF CONTROLLING A SEMICONDUCTOR MEMORY
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Application No.: US17696339Application Date: 2022-03-16
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Publication No.: US20220208282A1Publication Date: 2022-06-30
- Inventor: Tsukasa TOKUTOMI , Masanobu SHIRAKAWA
- Applicant: KIOXIA CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KIOXIA CORPORATION
- Current Assignee: KIOXIA CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2018-174175 20180918
- Main IPC: G11C16/34
- IPC: G11C16/34 ; G11C11/56 ; G11C16/26 ; G06F11/10 ; G11C29/52 ; G11C16/10

Abstract:
According to one embodiment, a controller is configured to write four-bit data in each of memory cells, and read first data item from the memory cells through application of a first voltage to a word line. The controller is configured to read second data items by repeating a first operation of reading data including data of respective first bits of the memory cells through application of two voltages to the word line at different timings while changing the two voltages in each first operation from the two voltages in another first operation. The controller is configured to mask part of each of the second data items using the first data.
Public/Granted literature
- US11682464B2 Method of controlling a semiconductor memory including memory cells and a word line Public/Granted day:2023-06-20
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