发明申请
US20050180188A1 Phase-change memory device with overvoltage protection and method for protecting a phase-change memory device against overvoltages
有权
具有过电压保护的相变存储器件和用于保护相变存储器件免受过电压的方法
- 专利标题: Phase-change memory device with overvoltage protection and method for protecting a phase-change memory device against overvoltages
- 专利标题(中): 具有过电压保护的相变存储器件和用于保护相变存储器件免受过电压的方法
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申请号: US10987933申请日: 2004-11-12
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公开(公告)号: US20050180188A1公开(公告)日: 2005-08-18
- 发明人: Ferdinando Bedeschi , Claudio Resta , Guido Torelli
- 申请人: Ferdinando Bedeschi , Claudio Resta , Guido Torelli
- 申请人地址: IT Agrate Brianza IT Pavia
- 专利权人: STMicroelectronics S.r.l.,Universita' Degli Studi Di Pavia
- 当前专利权人: STMicroelectronics S.r.l.,Universita' Degli Studi Di Pavia
- 当前专利权人地址: IT Agrate Brianza IT Pavia
- 优先权: EP03425728.7 20031112
- 主分类号: G11C7/12
- IPC分类号: G11C7/12 ; G11C16/02 ; G11C11/22
摘要:
A phase change memory device includes a plurality of phase-change memory cells, arranged in rows and columns, phase-change memory cells arranged on the same column being connected to a same bit line; a plurality of first selectors, each coupled to a respective phase-change memory cell; an addressing circuit for selectively addressing at least one of the bit lines, one of the first selectors, and the phase-change memory cell connected to the addressed bit line and to the addressed first selector; and a regulated voltage supply circuit, selectively connectable to the addressed bit line, for supplying a bit line voltage. The bit line voltage is correlated to a first control voltage on the addressed first selector, coupled to the addressed phase-change memory cell.
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