Invention Application
- Patent Title: NONVOLATILE MEMORY DEVICE AND METHOD FOR DRIVING SAME
- Patent Title (中): 非易失性存储器件及其驱动方法
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Application No.: US13018757Application Date: 2011-02-01
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Publication No.: US20110286260A1Publication Date: 2011-11-24
- Inventor: Takayuki TSUKAMOTO , Yoichi Minemura , Natsuki Kikuchi , Mitsuru Sato , Hiroshi Kanno , Takafumi Shimotori
- Applicant: Takayuki TSUKAMOTO , Yoichi Minemura , Natsuki Kikuchi , Mitsuru Sato , Hiroshi Kanno , Takafumi Shimotori
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee: KABUSHIKI KAISHA TOSHIBA
- Current Assignee Address: JP Tokyo
- Priority: JP2010-116499 20100520
- Main IPC: G11C11/00
- IPC: G11C11/00 ; H01L45/00

Abstract:
According to one embodiment, a nonvolatile memory device includes a memory unit and a control unit. The memory unit includes first and second interconnects, and a memory cell. The second interconnect is non-parallel to the first interconnect. The memory cell includes a resistance change layer provided at an intersection between the first and second interconnects. The control unit is connected to the first and second interconnects to supply voltage and current to the resistance change layer. The control unit increases an upper limit of a current supplied to the first interconnect based on a change of a potential of the first interconnect when applying a set operation voltage to the first interconnect in a set operation of changing the resistance change layer from a first state with a first resistance value to a second state with a second resistance value being less than the first resistance value.
Public/Granted literature
- US08274822B2 Nonvolatile memory device and method for driving same Public/Granted day:2012-09-25
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