Invention Grant
- Patent Title: Nonvolatile memory element, and nonvolatile memory device
- Patent Title (中): 非易失性存储元件和非易失性存储器件
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Application No.: US12863535Application Date: 2009-11-18
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Publication No.: US08227788B2Publication Date: 2012-07-24
- Inventor: Takumi Mikawa , Kiyotaka Tsuji , Takashi Okada
- Applicant: Takumi Mikawa , Kiyotaka Tsuji , Takashi Okada
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2008-295866 20081119
- International Application: PCT/JP2009/006196 WO 20091118
- International Announcement: WO2010/058569 WO 20100527
- Main IPC: H01L21/00
- IPC: H01L21/00

Abstract:
A nonvolatile memory element comprises a resistance variable element 105 configured to reversibly change between a low-resistance state and a high-resistance state in response to electric signals with different polarities which are applied thereto; and a current controlling element 112 configured such that when a current flowing when a voltage whose absolute value is a first value as a desired value which is larger than 0 and smaller than a predetermined voltage value and whose polarity is a first polarity is applied is a first current and a current flowing when a voltage whose absolute value is the first value and whose polarity is a second polarity different from the first polarity is applied is a second current, the first current is higher than the second current, and the resistance variable element is connected in series with the current controlling element such that a polarity of a voltage applied to the current controlling element when the resistance variable element is changed from the low-resistance state to the high-resistance state is the first polarity.
Public/Granted literature
- US20100295012A1 NONVOLATILE MEMORY ELEMENT, AND NONVOLATILE MEMORY DEVICE Public/Granted day:2010-11-25
Information query
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