Phase-change memory and method having restore function
    52.
    发明申请
    Phase-change memory and method having restore function 失效
    相变存储器和方法具有恢复功能

    公开(公告)号:US20050117387A1

    公开(公告)日:2005-06-02

    申请号:US10788407

    申请日:2004-03-01

    IPC分类号: G11C7/00 G11C16/02 G11C11/00

    摘要: A phase-change memory device includes a phase-change memory cell having a volume of material which is programmable between amorphous and crystalline states. A write current source selectively applies a first write current pulse to program the phase-change memory cell into the amorphous state and a second write current pulse to program the phase-change memory cell into the crystalline state. The phase-change memory device further includes a restore circuit which selectively applies the first current pulse to the phase-change memory cell to restore at least an amorphous state of the phase-change memory cell.

    摘要翻译: 相变存储器件包括具有在非晶态和晶态之间可编程的材料体积的相变存储单元。 写入电流源选择性地施加第一写入电流脉冲以将相变存储器单元编程为非晶态,以及第二写入电流脉冲以将相变存储器单元编程为结晶状态。 相变存储器件还包括还原电路,其选择性地将第一电流脉冲施加到相变存储器单元以恢复相变存储单元的至少非晶状态。