Invention Grant
- Patent Title: Memory controller, memory control method, and coefficient decision method
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Application No.: US15686833Application Date: 2017-08-25
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Publication No.: US10014059B2Publication Date: 2018-07-03
- Inventor: Tsuyoshi Atsumi
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Minato-ku
- Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G11C16/26 ; G11C29/02 ; G11C16/34 ; G11C29/04
Abstract:
According to one embodiment, a distribution of threshold voltages of a plurality of memory cells is acquired from a nonvolatile memory which includes the plurality of memory cells, a malfunction state occurring in the nonvolatile memory is identified based on a shape of the distribution, and a read voltage when data is read out of the nonvolatile memory is set to a voltage value corresponding to a type of the malfunction state.
Public/Granted literature
- US20170352427A1 MEMORY CONTROLLER, MEMORY CONTROL METHOD, AND COEFFICIENT DECISION METHOD Public/Granted day:2017-12-07
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