发明授权
US07916516B2 Nonvolatile memory apparatus and method for writing data in nonvolatile memory apparatus
有权
非易失性存储装置和用于在非易失性存储装置中写入数据的方法
- 专利标题: Nonvolatile memory apparatus and method for writing data in nonvolatile memory apparatus
- 专利标题(中): 非易失性存储装置和用于在非易失性存储装置中写入数据的方法
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申请号: US12524313申请日: 2008-02-22
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公开(公告)号: US07916516B2公开(公告)日: 2011-03-29
- 发明人: Zhiqiang Wei , Kazuhiko Shimakawa , Takeshi Takagi , Yoshikazu Katoh
- 申请人: Zhiqiang Wei , Kazuhiko Shimakawa , Takeshi Takagi , Yoshikazu Katoh
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will & Emery LLP
- 优先权: JP2007-043734 20070223
- 国际申请: PCT/JP2008/000304 WO 20080222
- 国际公布: WO2008/105155 WO 20080904
- 主分类号: G11C11/00
- IPC分类号: G11C11/00
摘要:
A nonvolatile memory apparatus comprises a memory array (102) including plural first electrode wires (WL) formed to extend in parallel with each other within a first plane; plural second electrode wires (BL) formed to extend in parallel with each other within a second plane parallel to the first plane and to three-dimensionally cross the plural first electrode wires; and nonvolatile memory elements (11) which are respectively provided at three-dimensional cross points between the first electrode wires and the second electrode wires, the elements each having a resistance variable layer whose resistance value changes reversibly in response to a current pulse supplied between an associated first electrode wire and an associated second electrode wire; and a first selecting device (13) for selecting the first electrode wires, and further comprises voltage restricting means (15) provided within or outside the memory array, the voltage restricting means being connected to the first electrode wires, for restricting a voltage applied to the first electrode wires to a predetermined upper limit value or less; wherein plural nonvolatile memory elements of the nonvolatile memory elements are connected to one first electrode wire connecting the first selecting device to the voltage restricting means.
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