Invention Grant
- Patent Title: Nonvolatile semiconductor memory device
- Patent Title (中): 非易失性半导体存储器件
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Application No.: US12885896Application Date: 2010-09-20
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Publication No.: US08369130B2Publication Date: 2013-02-05
- Inventor: Hiroshi Maejima
- Applicant: Hiroshi Maejima
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2009-262821 20091118
- Main IPC: G11C11/21
- IPC: G11C11/21

Abstract:
A nonvolatile semiconductor memory device according to an embodiment comprises a memory cell array including plural mutually crossing first and second lines and memory cells arranged at intersections of the first and second lines, each memory cell containing a variable resistance element and a rectifier element connected in series; and a data write/erase circuit operative to apply a voltage required for data write/erase to the memory cell via the first and second lines. The data write/erase circuit includes a first current limit circuit operative to limit the current flowing in the cathode-side line provided on the cathode side of the rectifier element, of the first and second lines, at the time of data write/erase.
Public/Granted literature
- US20110116300A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE Public/Granted day:2011-05-19
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