Invention Grant
- Patent Title: Nonvolatile semiconductor memory device including variable resistance element
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Application No.: US14602851Application Date: 2015-01-22
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Publication No.: US09147469B2Publication Date: 2015-09-29
- Inventor: Akira Takashima , Hidenori Miyagawa , Shosuke Fujii , Daisuke Matsushita
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Minato-ku
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2011-134325 20110616
- Main IPC: G11C13/00
- IPC: G11C13/00

Abstract:
According to one embodiment, a nonvolatile semiconductor memory device includes a memory cell array and a control circuit. The memory cell array include the memory cells each including a variable resistance element in which a reset current flowing in a reset operation is smaller than a set current flowing in a set operation by not less than one order of magnitude. The control circuit performs the reset operation and the set operation for the memory cells. The control circuit performs the reset operation for all memory cells being in the low resistance state and connected to selected first interconnections and selected second interconnections.
Public/Granted literature
- US20150131363A1 NONVOLATILE SEMICONDUCTOR MEMORY DEVICE INCLUDING VARIABLE RESISTANCE ELEMENT Public/Granted day:2015-05-14
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