Invention Grant
- Patent Title: Semiconductor storage device including variable resistive elements
- Patent Title (中): 半导体存储装置包括可变电阻元件
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Application No.: US13187891Application Date: 2011-07-21
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Publication No.: US08625329B2Publication Date: 2014-01-07
- Inventor: Hiroshi Maejima
- Applicant: Hiroshi Maejima
- Applicant Address: JP Toshiba
- Assignee: Kabushiki Kaisha
- Current Assignee: Kabushiki Kaisha
- Current Assignee Address: JP Toshiba
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2010-168809 20100728
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A semiconductor memory device includes: a memory cell array including multiple first lines, multiple second lines crossing the first lines, and memory cells arranged at intersections between the first lines and the second lines and including variable resistive elements; and a control circuit which controls resistance values of the variable resistive elements in a way that a cell voltage is applied to the memory cell arranged at an intersection between a selected first line and a selected second line by applying first and second voltages to the selected first and second lines, respectively. The control circuit applies a voltage gradually raised or lowered from a first initial voltage as the first voltage to the selected first line, and a pulsing voltage as the second voltage to the selected second line.
Public/Granted literature
- US20120026778A1 SEMICONDUCTOR STORAGE DEVICE Public/Granted day:2012-02-02
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