Invention Grant
US08692222B2 Nonvolatile memory element and method of manufacturing the nonvolatile memory element
有权
非易失性存储元件和制造非易失性存储元件的方法
- Patent Title: Nonvolatile memory element and method of manufacturing the nonvolatile memory element
- Patent Title (中): 非易失性存储元件和制造非易失性存储元件的方法
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Application No.: US13575338Application Date: 2011-12-12
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Publication No.: US08692222B2Publication Date: 2014-04-08
- Inventor: Shinichi Yoneda , Takumi Mikawa
- Applicant: Shinichi Yoneda , Takumi Mikawa
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2010-291368 20101227
- International Application: PCT/JP2011/006912 WO 20111212
- International Announcement: WO2012/090404 WO 20120705
- Main IPC: H01L47/00
- IPC: H01L47/00

Abstract:
A nonvolatile memory element according to the present disclosure includes: a variable resistance element including a first electrode layer, a second electrode layer, and a variable resistance layer which is located between the first electrode layer and the second electrode layer and has a resistance value that reversibly changes based on an electrical signal applied between the first electrode layer and the second electrode layer; and a fixed resistance layer having a predetermined resistance value and stacked together with the variable resistance element. The variable resistance layer includes (i) a first transition metal oxide layer which is oxygen deficient and (ii) a second transition metal oxide layer which has a higher oxygen content atomic percentage than the first transition metal oxide layer. The predetermined resistance value ranges from 70Ω to 1000Ω inclusive.
Public/Granted literature
- US20120292589A1 NONVOLATILE MEMORY ELEMENT AND METHOD OF MANUFACTURING THE NONVOLATILE MEMORY ELEMENT Public/Granted day:2012-11-22
Information query
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