Invention Grant
- Patent Title: Semiconductor memory device and memory system
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Application No.: US15383165Application Date: 2016-12-19
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Publication No.: US09953709B2Publication Date: 2018-04-24
- Inventor: Masanobu Shirakawa , Marie Takada , Yuji Nagai
- Applicant: TOSHIBA MEMORY CORPORATION
- Applicant Address: JP Mintato-ku
- Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee: TOSHIBA MEMORY CORPORATION
- Current Assignee Address: JP Mintato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: G11C11/34
- IPC: G11C11/34 ; G11C16/04 ; G11C16/12 ; G11C16/26 ; G06F11/10 ; G11C29/52 ; G06F3/06

Abstract:
According to one embodiment, a semiconductor memory device includes a cell transistor coupled to a word line, a sense amplifier configured to output data based on a state of the cell transistor in response to a first signal asserted; and a controller configured to apply a voltage of a magnitude continuously rising to the word line, and periodically assert the first signal after a lapse of any selected one of a first time and a second time from the start of rise of the magnitude of the voltage. The first time is different from the second time.
Public/Granted literature
- US20180068729A1 SEMICONDUCTOR MEMORY DEVICE AND MEMORY SYSTEM Public/Granted day:2018-03-08
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