Invention Grant
- Patent Title: Semiconductor storage device
- Patent Title (中): 半导体存储设备
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Application No.: US13407155Application Date: 2012-02-28
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Publication No.: US08582346B2Publication Date: 2013-11-12
- Inventor: Hiroshi Maejima , Koji Hosono
- Applicant: Hiroshi Maejima , Koji Hosono
- 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: JP2009-059719 20090312
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
A semiconductor storage device includes: a cell array including a plurality of first wirings, a plurality of second wirings intersecting the first wirings, and memory cells positioned at intersecting portions between the first wirings and the second wirings, each of the memory cells having a series circuit of a non-ohmic element and a variable resistance element; a control circuit configured to apply a control voltage, which is necessary for the variable resistance element to transit from a low resistance state to a high resistance state, to the memory cells through the first wirings and the second wirings; and a bias voltage application circuit configured to apply a bias voltage, which suppresses a potential variation caused by the transition of the variable resistance element from the low resistance state to the high resistance state, to one end of the variable resistance element.
Public/Granted literature
- US20120155149A1 SEMICONDUCTOR STORAGE DEVICE Public/Granted day:2012-06-21
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